diff --git a/README.md b/README.md
index d32e1ca9e..de9e8e7e2 100644
--- a/README.md
+++ b/README.md
@@ -14,19 +14,19 @@ EN | [中文](README_zh-CN.md)
 * Friends list
 * Teleportation
 * Gacha system
-* Co-op *partially* work
+* Co-op *partially* works
 * Spawning monsters via console
 * Inventory features (recieving items/characters, upgrading items/characters, etc)
 
 ## Quick setup guide
 
-**Note:** for support please join our [Discord](https://discord.gg/T5vZU6UyeG)
+**Note:** For support please join our [Discord](https://discord.gg/T5vZU6UyeG).
 
 ### Requirements
 
-* Java SE - 17 ([mirror link](https://github.com/adoptium/temurin17-binaries/releases/tag/jdk-17.0.3+7) since Oracle required an account to download old builds)
+* Java SE - 17 ([link](https://www.oracle.com/java/technologies/javase/jdk17-archive-downloads.html))
 
-  **Note:** If you just want to **run it**, then **jre** is fine 
+  **Note:** If you just want to **run it**, then **jre** only is fine.
 
 * MongoDB (recommended 4.0+)
 
@@ -34,12 +34,12 @@ EN | [中文](README_zh-CN.md)
 
 ### Running
 
-**Note:** If you update from an older version, delete `config.json` for regeneration
+**Note:** If you updated from an older version, delete `config.json` to regenerate it.
 
 1. Get `grasscutter.jar`
    - Download from [actions](https://nightly.link/Grasscutters/Grasscutter/workflows/build/stable/Grasscutter.zip)
    - [Build by yourself](#Building)
-2. Create a `resources` folder in the directory where grasscutter.jar is located and bring your `BinOutput` and `ExcelBinOutput` folders into it *(Check the [wiki](https://github.com/Grasscutters/Grasscutter/wiki) for more details how to get those.)*
+2. Create a `resources` folder in the directory where grasscutter.jar is located and move your `BinOutput` and `ExcelBinOutput` folders there *(Check the [wiki](https://github.com/Grasscutters/Grasscutter/wiki) for more details how to get those.)*
 3. Run Grasscutter with `java -jar grasscutter.jar`. **Make sure mongodb service is running as well.**
 
 ### Connecting with the client
@@ -96,7 +96,7 @@ chmod +x gradlew
 ./gradlew jar # Compile
 ```
 
-You can find the output jar in the root of the project folder
+You can find the output jar in the root of the project folder.
 
 ## Commands
 
@@ -106,32 +106,32 @@ There is a dummy user named "Server" in every player's friends list that you can
 
 | Commands       | Usage                                             | Permission node           | Availability | description                                                  | Alias                                           |
 | -------------- | ------------------------------------------------- | ------------------------- | ------------ | ------------------------------------------------------------ | ----------------------------------------------- |
-| account        | account <create\|delete> <username> [uid]         |                           | Server only  | Creates an account with the specified username and the in-game uid for that account. The uid will be auto generated if not set. |                                                 |
+| account        | account <create\|delete> <username> [UID]         |                           | Server only  | Creates an account with the specified username and the in-game UID for that account. The UID will be auto generated if not set. |                                                 |
 | broadcast      | broadcast <message>                               | server.broadcast          | Both side    | Sends a message to all the players.                          | b                                               |
 | changescene    | changescene <scene id>                            | player.changescene        | Client only  | Switch scenes by scene ID.                                   | scene                                           |
-| clearartifacts | clearartifacts                                    | player.clearartifacts     | Client only  | Deletes all unequipped and unlocked level 0 artifacts, including yellow rarity ones from your inventory. | clearart                                        |
-| clearweapons   | clearweapons                                      | player.clearweapons       | Client only  | Deletes all unequipped and unlocked weapons, including yellow rarity ones from your inventory. | clearwpns                                       |
+| clearartifacts | clearartifacts                                    | player.clearartifacts     | Client only  | Deletes all unequipped and unlocked level 0 artifacts, including 5-star rarity ones from your inventory. | clearart                                        |
+| clearweapons   | clearweapons                                      | player.clearweapons       | Client only  | Deletes all unequipped and unlocked weapons, including 5-star rarity ones from your inventory. | clearwpns                                       |
 | drop           | drop <itemID\|itemName> [amount]                  | server.drop               | Client only  | Drops an item around you.                                    | `d` `dropitem`                                  |
 | give           | give [player] <itemId\|itemName> [amount] [level] | player.give               | Both side    | Gives item(s) to you or the specified player.                | `g` `item` `giveitem`                           |
 | givechar       | givechar <uid> <avatarId> [level]                 | player.givechar           | Both side    | Gives the player a specified character.                      | givec                                           |
 | godmode        | godmode [uid]                                     | player.godmode            | Client only  | Prevents you from taking damage.                             |                                                 |
-| heal           | heal                                              | player.heal               | Client only  | Heal all characters in your current team.                    | h                                               |
+| heal           | heal                                              | player.heal               | Client only  | Heals all characters in your current team.                    | h                                               |
 | help           | help [command]                                    |                           | Both side    | Sends the help message or shows information about a specified command. |                                                 |
 | kick           | kick <player>                                     | server.kick               | Both side    | Kicks the specified player from the server. (WIP)            | k                                               |
-| killall        | killall [playerUid] [sceneId]                     | server.killall            | Both side    | Kill all entities in the current scene or specified scene of the corresponding player. |                                                 |
-| list           | list                                              |                           | Both side    | List online players.                                         |                                                 |
+| killall        | killall [playerUid] [sceneId]                     | server.killall            | Both side    | Kills all entities in the current scene or specified scene of the corresponding player. |                                                 |
+| list           | list                                              |                           | Both side    | Lists online players.                                         |                                                 |
 | permission     | permission <add\|remove> <username> <permission>  | *                         | Both side    | Grants or removes a permission for a user.                   |                                                 |
-| position       | position                                          |                           | Client only  | Get coordinates.                                             | pos                                             |
-| reload         | reload                                            | server.reload             | Both side    | Reload server config                                         |                                                 |
-| resetconst     | resetconst [all]                                  | player.resetconstellation | Client only  | Resets the constellation level on your current active character, will need to relog after using the command to see any changes. | resetconstellation                              |
+| position       | position                                          |                           | Client only  | Sends your current coordinates.                                             | pos                                             |
+| reload         | reload                                            | server.reload             | Both side    | Reloads the server config                                         |                                                 |
+| resetconst     | resetconst [all]                                  | player.resetconstellation | Client only  | Resets the constellation level on your currently selected character, will need to relog after using the command to see any changes. | resetconstellation                              |
 | restart        |                                                   |                           | Both side    | Restarts the current session                                 |                                                 |
 | say            | say <player> <message>                            | server.sendmessage        | Both side    | Sends a message to a player as the server                    | `sendservmsg` `sendservermessage` `sendmessage` |
-| setfetterlevel | setfetterlevel <level>                            | player.setfetterlevel     | Client only  | Sets your fetter level for your current active character     | setfetterlvl                                    |
-| setstats       | setstats <stat> <value>                           | player.setstats           | Client only  | Set fight property for your current active character         | stats                                           |
+| setfetterlevel | setfetterlevel <level>                            | player.setfetterlevel     | Client only  | Sets the friendship level for your currently selected character     | setfetterlvl                                    |
+| setstats       | setstats <stat> <value>                           | player.setstats           | Client only  | Sets a stat for your currently selected character         | stats                                           |
 | setworldlevel  | setworldlevel <level>                             | player.setworldlevel      | Client only  | Sets your world level (Relog to see proper effects)          | setworldlvl                                     |
 | spawn          | spanw <entityID\|entityName> [level] [amount]     | server.spawn              | Client only  | Spawns an entity near you                                    |                                                 |
 | stop           | stop                                              | server.stop               | Both side    | Stops the server                                             |                                                 |
-| talent         | talent <talentID> <value>                         | player.settalent          | Client only  | Set talent level for your current active character           |                                                 |
+| talent         | talent <talentID> <value>                         | player.settalent          | Client only  | Sets talent level for your currently selected character           |                                                 |
 | teleport       | teleport <x> <y> <z>                              | player.teleport           | Client only  | Change the player's position.                                | tp                                              |
 | weather        | weather <weatherID> <climateID>                   | player.weather            | Client only  | Changes the weather                                          | w                                               |
 
@@ -145,4 +145,4 @@ character falling from a very high destination, exact location that you marked.
 * If compiling wasn't successful, please check your JDK installation (JDK 17 and validated JDK's bin PATH variable)
 * My client doesn't connect, doesn't login, 4206, etc... - Mostly your proxy daemon setup is *the issue*, if using
   Fiddler make sure it running on another port except 8888
-* Startup sequence: Mongodb > Grasscutter > Proxy daemon (mitmdump, fiddler, etc.) > Client
+* Startup sequence: Mongodb -> Grasscutter -> Proxy daemon (mitmdump, fiddler, etc.) -> Client
diff --git a/data/Drop.json b/data/Drop.json
new file mode 100644
index 000000000..1fd5dd69e
--- /dev/null
+++ b/data/Drop.json
@@ -0,0 +1,14 @@
+[
+  {
+    "monsterId": 21010101,
+    "dropDataList": [
+      {
+        "itemId": 112005,
+        "minCount": 1,
+        "maxCount": 3,
+        "minWeight": 0,
+        "maxWeight": 10000
+      }
+    ]
+  }
+]
diff --git a/data/Shop.json b/data/Shop.json
new file mode 100644
index 000000000..9670b0bfc
--- /dev/null
+++ b/data/Shop.json
@@ -0,0 +1,54 @@
+[
+  {
+    "shopId": 1004,
+    "items": [
+      {
+        "goodsId": 1004202,
+        "goodsItem": {
+          "Id": 202,
+          "Count": 1000000
+        },
+        "scoin": 1,
+        "buyLimit": 500,
+        "beginTime": 1575129600,
+        "endTime": 2051193600,
+        "minLevel": 1,
+        "maxLevel": 99,
+        "costItemList": [
+          {
+            "Id": 223,
+            "Count": 100
+          }
+        ]
+      },
+      {
+        "goodsId": 10048006,
+        "goodsItem": {
+          "Id": 108006,
+          "Count": 20
+        },
+        "scoin": 100,
+        "hcoin": 100,
+        "mcoin": 100,
+        "buyLimit": 50000,
+        "beginTime": 1575129600,
+        "endTime": 2051193600,
+        "minLevel": 1,
+        "maxLevel": 99
+      },
+      {
+        "goodsId": 10048033,
+        "goodsItem": {
+          "Id": 108033,
+          "Count": 20
+        },
+        "scoin": 1,
+        "buyLimit": 50000,
+        "beginTime": 1575129600,
+        "endTime": 2051193600,
+        "minLevel": 1,
+        "maxLevel": 99
+      }
+    ]
+  }
+]
\ No newline at end of file
diff --git a/src/main/java/emu/grasscutter/command/commands/KillAllCommand.java b/src/main/java/emu/grasscutter/command/commands/KillAllCommand.java
index 3e2466686..9636fd845 100644
--- a/src/main/java/emu/grasscutter/command/commands/KillAllCommand.java
+++ b/src/main/java/emu/grasscutter/command/commands/KillAllCommand.java
@@ -4,6 +4,7 @@ import emu.grasscutter.Grasscutter;
 import emu.grasscutter.command.Command;
 import emu.grasscutter.command.CommandHandler;
 import emu.grasscutter.game.entity.EntityMonster;
+import emu.grasscutter.game.entity.GameEntity;
 import emu.grasscutter.game.player.Player;
 import emu.grasscutter.game.world.Scene;
 
@@ -53,10 +54,12 @@ public final class KillAllCommand implements CommandHandler {
                     return;
             }
 
-            mainScene.getEntities().values().stream()
+            // Separate into list to avoid concurrency issue
+            List<GameEntity> toKill = mainScene.getEntities().values().stream()
                     .filter(entity -> entity instanceof EntityMonster)
-                    .forEach(entity -> mainScene.killEntity(entity, 0));
-            CommandHandler.sendMessage(sender, "Killing all monsters in scene " + mainScene.getId());
+                    .toList();
+            toKill.stream().forEach(entity -> mainScene.killEntity(entity, 0));
+            CommandHandler.sendMessage(sender, "Killing " + toKill.size() + " monsters in scene " + mainScene.getId());
         } catch (NumberFormatException ignored) {
             CommandHandler.sendMessage(sender, "Invalid arguments.");
         }
diff --git a/src/main/java/emu/grasscutter/command/commands/ReloadCommand.java b/src/main/java/emu/grasscutter/command/commands/ReloadCommand.java
index 26dbb903b..d6f983df4 100644
--- a/src/main/java/emu/grasscutter/command/commands/ReloadCommand.java
+++ b/src/main/java/emu/grasscutter/command/commands/ReloadCommand.java
@@ -16,6 +16,8 @@ public final class ReloadCommand implements CommandHandler {
         CommandHandler.sendMessage(sender, "Reloading config.");
         Grasscutter.loadConfig();
         Grasscutter.getGameServer().getGachaManager().load();
+        Grasscutter.getGameServer().getDropManager().load();
+        Grasscutter.getGameServer().getShopManager().load();
         Grasscutter.getDispatchServer().loadQueries();
         CommandHandler.sendMessage(sender, "Reload complete.");
     }
diff --git a/src/main/java/emu/grasscutter/game/drop/DropData.java b/src/main/java/emu/grasscutter/game/drop/DropData.java
new file mode 100644
index 000000000..dd4d07b40
--- /dev/null
+++ b/src/main/java/emu/grasscutter/game/drop/DropData.java
@@ -0,0 +1,57 @@
+package emu.grasscutter.game.drop;
+
+public class DropData {
+    private int minWeight;
+    private int maxWeight;
+    private int itemId;
+    private int minCount;
+    private int maxCount;
+    private boolean share = false;
+
+    public int getItemId() {
+        return itemId;
+    }
+
+    public void setItemId(int itemId) {
+        this.itemId = itemId;
+    }
+
+    public int getMinCount() {
+        return minCount;
+    }
+
+
+    public int getMaxCount() {
+        return maxCount;
+    }
+
+
+    public int getMinWeight() {
+        return minWeight;
+    }
+
+    public int getMaxWeight() {
+        return maxWeight;
+    }
+
+
+    public boolean isShare() {
+        return share;
+    }
+
+    public void setIsShare(boolean share) {
+        this.share = share;
+    }
+
+    public boolean isGive() {
+        return give;
+    }
+
+    private boolean give = false;
+
+    public boolean isExp() {
+        return exp;
+    }
+
+    private boolean exp = false;
+}
diff --git a/src/main/java/emu/grasscutter/game/drop/DropInfo.java b/src/main/java/emu/grasscutter/game/drop/DropInfo.java
new file mode 100644
index 000000000..d9ccfc4c5
--- /dev/null
+++ b/src/main/java/emu/grasscutter/game/drop/DropInfo.java
@@ -0,0 +1,16 @@
+package emu.grasscutter.game.drop;
+
+import java.util.List;
+
+public class DropInfo {
+    public int getMonsterId() {
+        return monsterId;
+    }
+
+    public List<DropData> getDropDataList() {
+        return dropDataList;
+    }
+
+    private int monsterId;
+    private List<DropData> dropDataList;
+}
diff --git a/src/main/java/emu/grasscutter/game/drop/DropManager.java b/src/main/java/emu/grasscutter/game/drop/DropManager.java
new file mode 100644
index 000000000..3bea18c71
--- /dev/null
+++ b/src/main/java/emu/grasscutter/game/drop/DropManager.java
@@ -0,0 +1,99 @@
+package emu.grasscutter.game.drop;
+
+import com.google.gson.reflect.TypeToken;
+import emu.grasscutter.Grasscutter;
+import emu.grasscutter.data.GameData;
+import emu.grasscutter.data.def.ItemData;
+import emu.grasscutter.game.entity.EntityItem;
+import emu.grasscutter.game.entity.EntityMonster;
+import emu.grasscutter.game.player.Player;
+import emu.grasscutter.server.game.GameServer;
+import emu.grasscutter.utils.Position;
+import emu.grasscutter.utils.Utils;
+import it.unimi.dsi.fastutil.ints.Int2ObjectMap;
+import it.unimi.dsi.fastutil.ints.Int2ObjectOpenHashMap;
+
+import java.io.FileReader;
+import java.util.Collection;
+import java.util.List;
+
+public class DropManager {
+    public GameServer getGameServer() {
+        return gameServer;
+    }
+
+    private final GameServer gameServer;
+
+    public Int2ObjectMap<List<DropData>> getDropData() {
+        return dropData;
+    }
+
+    private final Int2ObjectMap<List<DropData>> dropData;
+
+    public DropManager(GameServer gameServer) {
+        this.gameServer = gameServer;
+        this.dropData = new Int2ObjectOpenHashMap<>();
+        this.load();
+    }
+
+    public synchronized void load() {
+        try (FileReader fileReader = new FileReader(Grasscutter.getConfig().DATA_FOLDER + "Drop.json")) {
+            getDropData().clear();
+            List<DropInfo> banners = Grasscutter.getGsonFactory().fromJson(fileReader, TypeToken.getParameterized(Collection.class, DropInfo.class).getType());
+            if(banners.size() > 0) {
+                for (DropInfo di : banners) {
+                    getDropData().put(di.getMonsterId(), di.getDropDataList());
+                }
+                Grasscutter.getLogger().info("Drop data successfully loaded.");
+            } else {
+                Grasscutter.getLogger().error("Unable to load drop data. Drop data size is 0.");
+            }
+        } catch (Exception e) {
+            // TODO Auto-generated catch block
+            e.printStackTrace();
+        }
+    }
+
+    private void processDrop(DropData dd, EntityMonster em, Player gp) {
+        int target = Utils.randomRange(1, 10000);
+        if (target >= dd.getMinWeight() && target < dd.getMaxWeight()) {
+            ItemData itemData = GameData.getItemDataMap().get(dd.getItemId());
+            int num = Utils.randomRange(dd.getMinCount(), dd.getMaxCount());
+            if (!dd.isGive()) {
+                if (itemData.isEquip()) {
+                    for (int i = 0; i < num; i++) {
+                        float range = (5f + (.1f * num));
+                        Position pos = em.getPosition().clone().addX((float) (Math.random() * range) - (range / 2)).addY(3f).addZ((float) (Math.random() * range) - (range / 2));
+                        EntityItem entity = new EntityItem(em.getScene(), gp, itemData, pos, num, dd.isShare());
+                        if (!dd.isShare())
+                            em.getScene().addEntityToSingleClient(gp, entity);
+                        else
+                            em.getScene().addEntity(entity);
+                    }
+                } else {
+                    Position pos = em.getPosition().clone().addY(3f);
+                    EntityItem entity = new EntityItem(em.getScene(), gp, itemData, pos, num, dd.isShare());
+                    if (!dd.isShare())
+                        em.getScene().addEntityToSingleClient(gp, entity);
+                    else
+                        em.getScene().addEntity(entity);
+                }
+            }
+        }
+    }
+
+    public void callDrop(EntityMonster em) {
+        int id = em.getMonsterData().getId();
+        if (getDropData().containsKey(id)) {
+            for (DropData dd : getDropData().get(id)) {
+                if (dd.isShare())
+                    processDrop(dd, em, null);
+                else {
+                    for (Player gp : em.getScene().getPlayers()) {
+                        processDrop(dd, em, gp);
+                    }
+                }
+            }
+        }
+    }
+}
diff --git a/src/main/java/emu/grasscutter/game/entity/EntityItem.java b/src/main/java/emu/grasscutter/game/entity/EntityItem.java
index 5b1e05fc7..e23c1cb33 100644
--- a/src/main/java/emu/grasscutter/game/entity/EntityItem.java
+++ b/src/main/java/emu/grasscutter/game/entity/EntityItem.java
@@ -6,7 +6,6 @@ import emu.grasscutter.game.player.Player;
 import emu.grasscutter.game.props.EntityIdType;
 import emu.grasscutter.game.props.PlayerProperty;
 import emu.grasscutter.game.world.Scene;
-import emu.grasscutter.game.world.World;
 import emu.grasscutter.net.proto.AbilitySyncStateInfoOuterClass.AbilitySyncStateInfo;
 import emu.grasscutter.net.proto.AnimatorParameterValueInfoPairOuterClass.AnimatorParameterValueInfoPair;
 import emu.grasscutter.net.proto.EntityAuthorityInfoOuterClass.EntityAuthorityInfo;
@@ -30,14 +29,30 @@ public class EntityItem extends EntityGadget {
 	
 	private final GameItem item;
 	private final long guid;
-	
+
+	private final boolean share;
+
 	public EntityItem(Scene scene, Player player, ItemData itemData, Position pos, int count) {
 		super(scene);
 		this.id = getScene().getWorld().getNextEntityId(EntityIdType.GADGET);
 		this.pos = new Position(pos);
 		this.rot = new Position();
-		this.guid = player.getNextGameGuid();
+		this.guid = player == null ? scene.getWorld().getHost().getNextGameGuid() : player.getNextGameGuid();
 		this.item = new GameItem(itemData, count);
+		this.share = true;
+	}
+
+	// In official game, some drop items are shared to all players, and some other items are independent to all players
+	// For example, if you killed a monster in MP mode, all players could get drops but rarity and number of them are different
+	// but if you broke regional mine, when someone picked up the drop then it disappeared
+	public EntityItem(Scene scene, Player player, ItemData itemData, Position pos, int count, boolean share) {
+		super(scene);
+		this.id = getScene().getWorld().getNextEntityId(EntityIdType.GADGET);
+		this.pos = new Position(pos);
+		this.rot = new Position();
+		this.guid = player == null ? scene.getWorld().getHost().getNextGameGuid() : player.getNextGameGuid();
+		this.item = new GameItem(itemData, count);
+		this.share = share;
 	}
 	
 	@Override
@@ -81,6 +96,10 @@ public class EntityItem extends EntityGadget {
 		return null;
 	}
 
+	public boolean isShare() {
+		return share;
+	}
+
 	@Override
 	public SceneEntityInfo toProto() {
 		EntityAuthorityInfo authority = EntityAuthorityInfo.newBuilder()
diff --git a/src/main/java/emu/grasscutter/game/friends/Friendship.java b/src/main/java/emu/grasscutter/game/friends/Friendship.java
index ef0bed109..79439bb3a 100644
--- a/src/main/java/emu/grasscutter/game/friends/Friendship.java
+++ b/src/main/java/emu/grasscutter/game/friends/Friendship.java
@@ -8,7 +8,7 @@ import emu.grasscutter.database.DatabaseHelper;
 import emu.grasscutter.game.player.Player;
 import emu.grasscutter.net.proto.FriendBriefOuterClass.FriendBrief;
 import emu.grasscutter.net.proto.FriendOnlineStateOuterClass.FriendOnlineState;
-import emu.grasscutter.net.proto.HeadImageOuterClass.HeadImage;
+import emu.grasscutter.net.proto.ProfilePictureOuterClass.ProfilePicture;
 
 @Entity(value = "friendships", useDiscriminator = false)
 public class Friendship {
@@ -92,7 +92,7 @@ public class Friendship {
 				.setUid(getFriendProfile().getUid())
 				.setNickname(getFriendProfile().getName())
 				.setLevel(getFriendProfile().getPlayerLevel())
-				.setAvatarId(HeadImage.newBuilder().setAvatarId(getFriendProfile().getAvatarId()).getAvatarId())
+				.setProfilePicture(ProfilePicture.newBuilder().setAvatarId(getFriendProfile().getAvatarId()))
 				.setWorldLevel(getFriendProfile().getWorldLevel())
 				.setSignature(getFriendProfile().getSignature())
 				.setOnlineState(getFriendProfile().isOnline() ? FriendOnlineState.FRIEND_ONLINE : FriendOnlineState.FREIEND_DISCONNECT)
diff --git a/src/main/java/emu/grasscutter/game/gacha/GachaBanner.java b/src/main/java/emu/grasscutter/game/gacha/GachaBanner.java
index ed5492b62..9b54c924f 100644
--- a/src/main/java/emu/grasscutter/game/gacha/GachaBanner.java
+++ b/src/main/java/emu/grasscutter/game/gacha/GachaBanner.java
@@ -16,8 +16,8 @@ public class GachaBanner {
 	private int sortId;
 	private int[] rateUpItems1;
 	private int[] rateUpItems2;
-	private int minItemType = 1;
-	private int maxItemType = 2;
+	private int baseYellowWeight = 60; // Max 10000
+	private int basePurpleWeight = 510; // Max 10000
 	private int eventChance = 50; // Chance to win a featured event item
 	private int softPity = 75;
 	private int hardPity = 90;
@@ -63,6 +63,14 @@ public class GachaBanner {
 		return sortId;
 	}
 
+	public int getBaseYellowWeight() {
+		return baseYellowWeight;
+	}
+
+	public int getBasePurpleWeight() {
+		return basePurpleWeight;
+	}
+
 	public int[] getRateUpItems1() {
 		return rateUpItems1;
 	}
@@ -70,14 +78,6 @@ public class GachaBanner {
 	public int[] getRateUpItems2() {
 		return rateUpItems2;
 	}
-
-	public int getMinItemType() {
-		return minItemType;
-	}
-	
-	public int getMaxItemType() {
-		return maxItemType;
-	}
 	
 	public int getSoftPity() {
 		return softPity - 1;
diff --git a/src/main/java/emu/grasscutter/game/gacha/GachaManager.java b/src/main/java/emu/grasscutter/game/gacha/GachaManager.java
index fa26569e4..5cd484e9a 100644
--- a/src/main/java/emu/grasscutter/game/gacha/GachaManager.java
+++ b/src/main/java/emu/grasscutter/game/gacha/GachaManager.java
@@ -15,6 +15,7 @@ import emu.grasscutter.Grasscutter;
 import emu.grasscutter.data.GameData;
 import emu.grasscutter.data.def.ItemData;
 import emu.grasscutter.game.avatar.Avatar;
+import emu.grasscutter.game.gacha.GachaBanner.BannerType;
 import emu.grasscutter.game.inventory.GameItem;
 import emu.grasscutter.game.inventory.ItemType;
 import emu.grasscutter.game.inventory.MaterialType;
@@ -125,8 +126,8 @@ public class GachaManager {
 			int itemId = 0;
 			
 			int bonusYellowChance = gachaInfo.getPity5() >= banner.getSoftPity() ? 100 * (gachaInfo.getPity5() - banner.getSoftPity() - 1): 0;
-			int yellowChance = 60 + (int) Math.floor(100f * (gachaInfo.getPity5() / (banner.getSoftPity() - 1D))) + bonusYellowChance;
-			int purpleChance = 10000 - (510 + (int) Math.floor(790f * (gachaInfo.getPity4() / 8f)));
+			int yellowChance = banner.getBaseYellowWeight() + (int) Math.floor(100f * (gachaInfo.getPity5() / (banner.getSoftPity() - 1D))) + bonusYellowChance;
+			int purpleChance = 10000 - (banner.getBasePurpleWeight() + (int) Math.floor(790f * (gachaInfo.getPity4() / 8f)));
 		
 			if (random <= yellowChance || gachaInfo.getPity5() >= banner.getHardPity()) {
 				if (banner.getRateUpItems1().length > 0) {
@@ -142,7 +143,7 @@ public class GachaManager {
 				}
 				
 				if (itemId == 0) {
-					int typeChance = this.randomRange(banner.getMinItemType(), banner.getMaxItemType());
+					int typeChance = this.randomRange(banner.getBannerType() == BannerType.WEAPON ? 2 : 1, banner.getBannerType() == BannerType.EVENT ? 1 : 2);
 					if (typeChance == 1) {
 						itemId = getRandom(this.yellowAvatars);
 					} else {
@@ -163,7 +164,7 @@ public class GachaManager {
 				}
 				
 				if (itemId == 0) {
-					int typeChance = this.randomRange(banner.getMinItemType(), banner.getMaxItemType());
+					int typeChance = this.randomRange(banner.getBannerType() == BannerType.WEAPON ? 2 : 1, banner.getBannerType() == BannerType.EVENT ? 1 : 2);
 					if (typeChance == 1) {
 						itemId = getRandom(this.purpleAvatars);
 					} else {
diff --git a/src/main/java/emu/grasscutter/game/inventory/Inventory.java b/src/main/java/emu/grasscutter/game/inventory/Inventory.java
index bb8dfad46..5ca0d022f 100644
--- a/src/main/java/emu/grasscutter/game/inventory/Inventory.java
+++ b/src/main/java/emu/grasscutter/game/inventory/Inventory.java
@@ -109,6 +109,16 @@ public class Inventory implements Iterable<GameItem> {
 		
 		return result;
 	}
+
+	public boolean addItem(GameItem item, ActionReason reason, boolean forceNotify) {
+		boolean result = addItem(item);
+
+		if (reason != null && (forceNotify || result)) {
+			getPlayer().sendPacket(new PacketItemAddHintNotify(item, reason));
+		}
+
+		return result;
+	}
 	
 	public void addItems(Collection<GameItem> items) {
 		this.addItems(items, null);
@@ -239,6 +249,9 @@ public class Inventory implements Iterable<GameItem> {
 			case 202: // Mora
 				getPlayer().setMora(player.getMora() + count);
 				break;
+			case 203: // Genesis Crystals
+				getPlayer().setCrystals(player.getCrystals() + count);
+				break;
 		}
 	}
 	
diff --git a/src/main/java/emu/grasscutter/game/managers/InventoryManager.java b/src/main/java/emu/grasscutter/game/managers/InventoryManager.java
index 904d2cbdd..055d3da6d 100644
--- a/src/main/java/emu/grasscutter/game/managers/InventoryManager.java
+++ b/src/main/java/emu/grasscutter/game/managers/InventoryManager.java
@@ -923,6 +923,7 @@ public class InventoryManager {
 				break;
 		}
 
+		// Welkin
 		if (useItem.getItemId() == 1202) {
 			player.rechargeMoonCard();
 			used = 1;
diff --git a/src/main/java/emu/grasscutter/game/player/Player.java b/src/main/java/emu/grasscutter/game/player/Player.java
index e226b0eaf..2715ba6e6 100644
--- a/src/main/java/emu/grasscutter/game/player/Player.java
+++ b/src/main/java/emu/grasscutter/game/player/Player.java
@@ -1,20 +1,16 @@
 package emu.grasscutter.game.player;
 
-import java.time.Instant;
-import java.util.*;
-
 import dev.morphia.annotations.*;
 import emu.grasscutter.GameConstants;
 import emu.grasscutter.Grasscutter;
-import emu.grasscutter.command.CommandHandler;
 import emu.grasscutter.data.GameData;
 import emu.grasscutter.data.def.PlayerLevelData;
 import emu.grasscutter.database.DatabaseHelper;
-import emu.grasscutter.game.avatar.AvatarProfileData;
-import emu.grasscutter.game.avatar.AvatarStorage;
 import emu.grasscutter.game.Account;
 import emu.grasscutter.game.CoopRequest;
 import emu.grasscutter.game.avatar.Avatar;
+import emu.grasscutter.game.avatar.AvatarProfileData;
+import emu.grasscutter.game.avatar.AvatarStorage;
 import emu.grasscutter.game.entity.EntityItem;
 import emu.grasscutter.game.entity.GameEntity;
 import emu.grasscutter.game.friends.FriendsList;
@@ -25,28 +21,29 @@ import emu.grasscutter.game.inventory.Inventory;
 import emu.grasscutter.game.mail.Mail;
 import emu.grasscutter.game.props.ActionReason;
 import emu.grasscutter.game.props.PlayerProperty;
+import emu.grasscutter.game.shop.ShopLimit;
 import emu.grasscutter.game.world.Scene;
 import emu.grasscutter.game.world.World;
 import emu.grasscutter.net.packet.BasePacket;
 import emu.grasscutter.net.proto.AbilityInvokeEntryOuterClass.AbilityInvokeEntry;
 import emu.grasscutter.net.proto.CombatInvokeEntryOuterClass.CombatInvokeEntry;
-import emu.grasscutter.net.proto.HeadImageOuterClass.HeadImage;
 import emu.grasscutter.net.proto.InteractTypeOuterClass.InteractType;
 import emu.grasscutter.net.proto.MpSettingTypeOuterClass.MpSettingType;
 import emu.grasscutter.net.proto.OnlinePlayerInfoOuterClass.OnlinePlayerInfo;
-import emu.grasscutter.net.proto.PlayerApplyEnterMpReasonOuterClass.PlayerApplyEnterMpReason;
 import emu.grasscutter.net.proto.PlayerApplyEnterMpResultNotifyOuterClass;
 import emu.grasscutter.net.proto.PlayerLocationInfoOuterClass.PlayerLocationInfo;
 import emu.grasscutter.net.proto.PlayerWorldLocationInfoOuterClass;
+import emu.grasscutter.net.proto.ProfilePictureOuterClass.ProfilePicture;
 import emu.grasscutter.net.proto.SocialDetailOuterClass.SocialDetail;
 import emu.grasscutter.server.game.GameServer;
 import emu.grasscutter.server.game.GameSession;
 import emu.grasscutter.server.packet.send.*;
-import emu.grasscutter.utils.Position;
 import emu.grasscutter.utils.DateHelper;
+import emu.grasscutter.utils.Position;
 import it.unimi.dsi.fastutil.ints.Int2ObjectMap;
 import it.unimi.dsi.fastutil.ints.Int2ObjectOpenHashMap;
 
+import java.time.Instant;
 import java.util.*;
 
 @Entity(value = "players", useDiscriminator = false)
@@ -84,6 +81,7 @@ public class Player {
 	private ArrayList<AvatarProfileData> shownAvatars;
 	private Set<Integer> rewardedLevels;
 	private ArrayList<Mail> mail;
+	private ArrayList<ShopLimit> shopLimit;
 
 	private int sceneId;
 	private int regionId;
@@ -141,6 +139,8 @@ public class Player {
 		this.birthday = new PlayerBirthday();
 		this.rewardedLevels = new HashSet<>();
 		this.moonCardGetTimes = new HashSet<>();
+
+		this.shopLimit = new ArrayList<>();
 	}
 
 	// On player creation
@@ -294,6 +294,15 @@ public class Player {
 		this.setProperty(PlayerProperty.PROP_PLAYER_SCOIN, mora);
 		this.sendPacket(new PacketPlayerPropNotify(this, PlayerProperty.PROP_PLAYER_SCOIN));
 	}
+	
+	public int getCrystals() {
+		return this.getProperty(PlayerProperty.PROP_PLAYER_MCOIN);
+	}
+
+	public void setCrystals(int crystals) {
+		this.setProperty(PlayerProperty.PROP_PLAYER_MCOIN, crystals);
+		this.sendPacket(new PacketPlayerPropNotify(this, PlayerProperty.PROP_PLAYER_MCOIN));
+	}
 
 	private int getExpRequired(int level) {
 		PlayerLevelData levelData = GameData.getPlayerLevelDataMap().get(level);
@@ -550,11 +559,7 @@ public class Player {
 	}
 
 	public void rechargeMoonCard() {
-		LinkedList<GameItem> items = new LinkedList<GameItem>();
-		for (int i = 0; i < 300; i++) {
-			items.add(new GameItem(203));
-		} 
-		inventory.addItems(items);
+		inventory.addItem(new GameItem(203, 300));
 		if (!moonCard) {
 			moonCard = true;
 			Date now = new Date();
@@ -592,6 +597,35 @@ public class Player {
 		session.send(new PacketCardProductRewardNotify(getMoonCardRemainDays()));
 	}
 
+	public List<ShopLimit> getShopLimit() {
+		return shopLimit;
+	}
+
+	public int getGoodsLimitNum(int goodsId) {
+		for (ShopLimit sl : getShopLimit()) {
+			if (sl.getShopGoodId() == goodsId)
+				return sl.getHasBought();
+		}
+		return 0;
+	}
+
+	public void addShopLimit(int goodsId, int boughtCount) {
+		boolean found = false;
+		for (ShopLimit sl : getShopLimit()) {
+			if (sl.getShopGoodId() == goodsId){
+				sl.setHasBought(sl.getHasBought() + boughtCount);
+				found = true;
+			}
+		}
+		if (!found) {
+			ShopLimit sl = new ShopLimit();
+			sl.setShopGoodId(goodsId);
+			sl.setHasBought(boughtCount);
+			shopLimit.add(sl);
+		}
+		this.save();
+	}
+
 	public boolean inGodmode() {
 		return godmode;
 	}
@@ -714,19 +748,30 @@ public class Player {
 			return;
 		}
 
-		// Delete
-		entity.getScene().removeEntity(entity);
-
 		// Handle
 		if (entity instanceof EntityItem) {
 			// Pick item
 			EntityItem drop = (EntityItem) entity;
+			if (!drop.isShare()) // check drop owner to avoid someone picked up item in others' world
+			{
+				int dropOwner = (int)(drop.getGuid() >> 32);
+				if (dropOwner != getUid())
+					return;
+			}
+			entity.getScene().removeEntity(entity);
 			GameItem item = new GameItem(drop.getItemData(), drop.getCount());
 			// Add to inventory
 			boolean success = getInventory().addItem(item, ActionReason.SubfieldDrop);
 			if (success) {
-				this.sendPacket(new PacketGadgetInteractRsp(drop, InteractType.INTERACT_PICK_ITEM));
+
+				if (!drop.isShare()) // not shared drop
+					this.sendPacket(new PacketGadgetInteractRsp(drop, InteractType.INTERACT_PICK_ITEM));
+				else
+					this.getScene().broadcastPacket(new PacketGadgetInteractRsp(drop, InteractType.INTERACT_PICK_ITEM));
 			}
+		} else {
+			// Delete directly
+			entity.getScene().removeEntity(entity);
 		}
 
 		return;
@@ -754,7 +799,7 @@ public class Player {
 				.setMpSettingType(this.getMpSetting())
 				.setNameCardId(this.getNameCardId())
 				.setSignature(this.getSignature())
-				.setAvatarId(HeadImage.newBuilder().setAvatarId(this.getHeadImage()).getAvatarId());
+				.setProfilePicture(ProfilePicture.newBuilder().setAvatarId(this.getHeadImage()));
 
 		if (this.getWorld() != null) {
 			onlineInfo.setCurPlayerNumInWorld(this.getWorld().getPlayers().indexOf(this) + 1);
@@ -789,7 +834,7 @@ public class Player {
 	public SocialDetail.Builder getSocialDetail() {
 		SocialDetail.Builder social = SocialDetail.newBuilder()
 				.setUid(this.getUid())
-				.setAvatarId(HeadImage.newBuilder().setAvatarId(this.getHeadImage()).getAvatarId())
+				.setProfilePicture(ProfilePicture.newBuilder().setAvatarId(this.getHeadImage()))
 				.setNickname(this.getNickname())
 				.setSignature(this.getSignature())
 				.setLevel(this.getLevel())
diff --git a/src/main/java/emu/grasscutter/game/shop/ShopInfo.java b/src/main/java/emu/grasscutter/game/shop/ShopInfo.java
index 768a3a7ca..b0e3b819b 100644
--- a/src/main/java/emu/grasscutter/game/shop/ShopInfo.java
+++ b/src/main/java/emu/grasscutter/game/shop/ShopInfo.java
@@ -1,5 +1,153 @@
 package emu.grasscutter.game.shop;
 
-public class ShopInfo {
+import emu.grasscutter.data.common.ItemParamData;
 
+import java.util.ArrayList;
+import java.util.List;
+
+public class ShopInfo {
+    private int goodsId = 0;
+    private ItemParamData goodsItem;
+    private int scoin = 0;
+    private List<ItemParamData> costItemList;
+    private int boughtNum = 0;
+    private int buyLimit = 0;
+    private int beginTime = 0;
+    private int endTime = 1924992000;
+    private int nextRefreshTime = 1924992000;
+    private int minLevel = 0;
+    private int maxLevel = 61;
+    private List<Integer> preGoodsIdList = new ArrayList<>();
+    private int mcoin = 0;
+    private int hcoin = 0;
+    private int disableType = 0;
+    private int secondarySheetId = 0;
+
+    public int getHcoin() {
+        return hcoin;
+    }
+
+    public void setHcoin(int hcoin) {
+        this.hcoin = hcoin;
+    }
+
+    public List<Integer> getPreGoodsIdList() {
+        return preGoodsIdList;
+    }
+
+    public void setPreGoodsIdList(List<Integer> preGoodsIdList) {
+        this.preGoodsIdList = preGoodsIdList;
+    }
+
+    public int getMcoin() {
+        return mcoin;
+    }
+
+    public void setMcoin(int mcoin) {
+        this.mcoin = mcoin;
+    }
+
+    public int getDisableType() {
+        return disableType;
+    }
+
+    public void setDisableType(int disableType) {
+        this.disableType = disableType;
+    }
+
+    public int getSecondarySheetId() {
+        return secondarySheetId;
+    }
+
+    public void setSecondarySheetId(int secondarySheetId) {
+        this.secondarySheetId = secondarySheetId;
+    }
+
+    public int getGoodsId() {
+        return goodsId;
+    }
+
+    public void setGoodsId(int goodsId) {
+        this.goodsId = goodsId;
+    }
+
+    public ItemParamData getGoodsItem() {
+        return goodsItem;
+    }
+
+    public void setGoodsItem(ItemParamData goodsItem) {
+        this.goodsItem = goodsItem;
+    }
+
+    public int getScoin() {
+        return scoin;
+    }
+
+    public void setScoin(int scoin) {
+        this.scoin = scoin;
+    }
+
+    public List<ItemParamData> getCostItemList() {
+        return costItemList;
+    }
+
+    public void setCostItemList(List<ItemParamData> costItemList) {
+        this.costItemList = costItemList;
+    }
+
+    public int getBoughtNum() {
+        return boughtNum;
+    }
+
+    public void setBoughtNum(int boughtNum) {
+        this.boughtNum = boughtNum;
+    }
+
+    public int getBuyLimit() {
+        return buyLimit;
+    }
+
+    public void setBuyLimit(int buyLimit) {
+        this.buyLimit = buyLimit;
+    }
+
+    public int getBeginTime() {
+        return beginTime;
+    }
+
+    public void setBeginTime(int beginTime) {
+        this.beginTime = beginTime;
+    }
+
+    public int getEndTime() {
+        return endTime;
+    }
+
+    public void setEndTime(int endTime) {
+        this.endTime = endTime;
+    }
+
+    public int getNextRefreshTime() {
+        return nextRefreshTime;
+    }
+
+    public void setNextRefreshTime(int nextRefreshTime) {
+        this.nextRefreshTime = nextRefreshTime;
+    }
+
+    public int getMinLevel() {
+        return minLevel;
+    }
+
+    public void setMinLevel(int minLevel) {
+        this.minLevel = minLevel;
+    }
+
+    public int getMaxLevel() {
+        return maxLevel;
+    }
+
+    public void setMaxLevel(int maxLevel) {
+        this.maxLevel = maxLevel;
+    }
 }
diff --git a/src/main/java/emu/grasscutter/game/shop/ShopLimit.java b/src/main/java/emu/grasscutter/game/shop/ShopLimit.java
new file mode 100644
index 000000000..ded87102e
--- /dev/null
+++ b/src/main/java/emu/grasscutter/game/shop/ShopLimit.java
@@ -0,0 +1,25 @@
+package emu.grasscutter.game.shop;
+
+import dev.morphia.annotations.Entity;
+
+@Entity
+public class ShopLimit {
+    public int getShopGoodId() {
+        return shopGoodId;
+    }
+
+    public void setShopGoodId(int shopGoodId) {
+        this.shopGoodId = shopGoodId;
+    }
+
+    public int getHasBought() {
+        return hasBought;
+    }
+
+    public void setHasBought(int hasBought) {
+        this.hasBought = hasBought;
+    }
+
+    private int shopGoodId;
+    private int hasBought;
+}
diff --git a/src/main/java/emu/grasscutter/game/shop/ShopManager.java b/src/main/java/emu/grasscutter/game/shop/ShopManager.java
index a21888f25..63436e517 100644
--- a/src/main/java/emu/grasscutter/game/shop/ShopManager.java
+++ b/src/main/java/emu/grasscutter/game/shop/ShopManager.java
@@ -1,12 +1,46 @@
 package emu.grasscutter.game.shop;
 
+import com.google.gson.reflect.TypeToken;
+import emu.grasscutter.Grasscutter;
 import emu.grasscutter.server.game.GameServer;
+import it.unimi.dsi.fastutil.ints.Int2ObjectMap;
+import it.unimi.dsi.fastutil.ints.Int2ObjectOpenHashMap;
+
+import java.io.FileReader;
+import java.util.Collection;
+import java.util.List;
 
 public class ShopManager {
 	private final GameServer server;
-	
+
+	public Int2ObjectMap<List<ShopInfo>> getShopData() {
+		return shopData;
+	}
+
+	private final Int2ObjectMap<List<ShopInfo>> shopData;
+
 	public ShopManager(GameServer server) {
 		this.server = server;
+		this.shopData = new Int2ObjectOpenHashMap<>();
+		this.load();
+	}
+
+	public synchronized void load() {
+		try (FileReader fileReader = new FileReader(Grasscutter.getConfig().DATA_FOLDER + "Shop.json")) {
+			getShopData().clear();
+			List<ShopTable> banners = Grasscutter.getGsonFactory().fromJson(fileReader, TypeToken.getParameterized(Collection.class, ShopTable.class).getType());
+			if(banners.size() > 0) {
+				for (ShopTable shopTable : banners) {
+					getShopData().put(shopTable.getShopId(), shopTable.getItems());
+				}
+				Grasscutter.getLogger().info("Shop data successfully loaded.");
+			} else {
+				Grasscutter.getLogger().error("Unable to load shop data. Shop data size is 0.");
+			}
+		} catch (Exception e) {
+			// TODO Auto-generated catch block
+			e.printStackTrace();
+		}
 	}
 
 	public GameServer getServer() {
diff --git a/src/main/java/emu/grasscutter/game/shop/ShopTable.java b/src/main/java/emu/grasscutter/game/shop/ShopTable.java
new file mode 100644
index 000000000..7396cd028
--- /dev/null
+++ b/src/main/java/emu/grasscutter/game/shop/ShopTable.java
@@ -0,0 +1,25 @@
+package emu.grasscutter.game.shop;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class ShopTable {
+    private int shopId;
+    private List<ShopInfo> items = new ArrayList<>();
+
+    public int getShopId() {
+        return shopId;
+    }
+
+    public void setShopId(int shopId) {
+        this.shopId = shopId;
+    }
+
+    public List<ShopInfo> getItems() {
+        return items;
+    }
+
+    public void setItems(List<ShopInfo> items) {
+        this.items = items;
+    }
+}
diff --git a/src/main/java/emu/grasscutter/game/world/Scene.java b/src/main/java/emu/grasscutter/game/world/Scene.java
index d9b01e0ef..543079153 100644
--- a/src/main/java/emu/grasscutter/game/world/Scene.java
+++ b/src/main/java/emu/grasscutter/game/world/Scene.java
@@ -1,28 +1,12 @@
 package emu.grasscutter.game.world;
 
-import java.util.ArrayList;
-import java.util.Collection;
-import java.util.Collections;
-import java.util.HashSet;
-import java.util.Iterator;
-import java.util.LinkedList;
-import java.util.List;
-import java.util.Set;
-
-import org.danilopianini.util.SpatialIndex;
-
 import emu.grasscutter.Grasscutter;
 import emu.grasscutter.data.GameData;
 import emu.grasscutter.data.GameDepot;
-import emu.grasscutter.data.GameResource;
 import emu.grasscutter.data.def.MonsterData;
 import emu.grasscutter.data.def.SceneData;
 import emu.grasscutter.data.def.WorldLevelData;
-import emu.grasscutter.game.entity.EntityAvatar;
-import emu.grasscutter.game.entity.EntityClientGadget;
-import emu.grasscutter.game.entity.EntityGadget;
-import emu.grasscutter.game.entity.EntityMonster;
-import emu.grasscutter.game.entity.GameEntity;
+import emu.grasscutter.game.entity.*;
 import emu.grasscutter.game.player.Player;
 import emu.grasscutter.game.player.TeamInfo;
 import emu.grasscutter.game.props.ClimateType;
@@ -37,10 +21,12 @@ import emu.grasscutter.server.packet.send.PacketEntityFightPropUpdateNotify;
 import emu.grasscutter.server.packet.send.PacketLifeStateChangeNotify;
 import emu.grasscutter.server.packet.send.PacketSceneEntityAppearNotify;
 import emu.grasscutter.server.packet.send.PacketSceneEntityDisappearNotify;
-import emu.grasscutter.utils.Utils;
 import it.unimi.dsi.fastutil.ints.Int2ObjectMap;
 import it.unimi.dsi.fastutil.ints.Int2ObjectMaps;
 import it.unimi.dsi.fastutil.ints.Int2ObjectOpenHashMap;
+import org.danilopianini.util.SpatialIndex;
+
+import java.util.*;
 
 public class Scene {
 	private final World world;
@@ -228,6 +214,11 @@ public class Scene {
 		this.addEntityDirectly(entity);
 		this.broadcastPacket(new PacketSceneEntityAppearNotify(entity));
 	}
+
+	public synchronized void addEntityToSingleClient(Player player, GameEntity entity) {
+		this.addEntityDirectly(entity);
+		player.sendPacket(new PacketSceneEntityAppearNotify(entity));
+	}
 	
 	public synchronized void addEntities(Collection<GameEntity> entities) {
 		for (GameEntity entity : entities) {
@@ -310,6 +301,12 @@ public class Scene {
 	public void killEntity(GameEntity target, int attackerId) {
 		// Packet
 		this.broadcastPacket(new PacketLifeStateChangeNotify(attackerId, target, LifeState.LIFE_DEAD));
+
+		// Reward drop
+		if (target instanceof EntityMonster) {
+			Grasscutter.getGameServer().getDropManager().callDrop((EntityMonster) target);
+		}
+
 		this.removeEntity(target);
 		
 		// Death event
diff --git a/src/main/java/emu/grasscutter/server/game/GameServer.java b/src/main/java/emu/grasscutter/server/game/GameServer.java
index 50889fd56..2b22b6a95 100644
--- a/src/main/java/emu/grasscutter/server/game/GameServer.java
+++ b/src/main/java/emu/grasscutter/server/game/GameServer.java
@@ -1,15 +1,11 @@
 package emu.grasscutter.server.game;
 
-import java.net.InetSocketAddress;
-import java.time.OffsetDateTime;
-import java.util.*;
-import java.util.concurrent.ConcurrentHashMap;
-
 import emu.grasscutter.GameConstants;
 import emu.grasscutter.Grasscutter;
 import emu.grasscutter.command.CommandMap;
 import emu.grasscutter.database.DatabaseHelper;
 import emu.grasscutter.game.Account;
+import emu.grasscutter.game.drop.DropManager;
 import emu.grasscutter.game.dungeons.DungeonManager;
 import emu.grasscutter.game.gacha.GachaManager;
 import emu.grasscutter.game.managers.ChatManager;
@@ -27,6 +23,11 @@ import emu.grasscutter.server.event.internal.ServerStartEvent;
 import emu.grasscutter.server.event.internal.ServerStopEvent;
 import emu.grasscutter.task.TaskMap;
 
+import java.net.InetSocketAddress;
+import java.time.OffsetDateTime;
+import java.util.*;
+import java.util.concurrent.ConcurrentHashMap;
+
 public final class GameServer extends KcpServer {
 	private final InetSocketAddress address;
 	private final GameServerPacketHandler packetHandler;
@@ -42,6 +43,7 @@ public final class GameServer extends KcpServer {
 	private final DungeonManager dungeonManager;
 	private final CommandMap commandMap;
 	private final TaskMap taskMap;
+	private final DropManager dropManager;
 	
 	public GameServer(InetSocketAddress address) {
 		super(address);
@@ -60,6 +62,7 @@ public final class GameServer extends KcpServer {
 		this.dungeonManager = new DungeonManager(this);
 		this.commandMap = new CommandMap(true);
 		this.taskMap = new TaskMap(true);
+		this.dropManager = new DropManager(this);
 		
 		// Schedule game loop.
 		Timer gameLoop = new Timer();
@@ -109,6 +112,10 @@ public final class GameServer extends KcpServer {
 	public MultiplayerManager getMultiplayerManager() {
 		return multiplayerManager;
 	}
+
+	public DropManager getDropManager() {
+		return dropManager;
+	}
 	
 	public DungeonManager getDungeonManager() {
 		return dungeonManager;
@@ -196,6 +203,7 @@ public final class GameServer extends KcpServer {
 
 	@Override
 	public void onStartFinish() {
+		Grasscutter.getLogger().info("Grasscutter is FREE software. If you have paid for this, you may have been scammed. Homepage: https://github.com/Grasscutters/Grasscutter");
 		Grasscutter.getLogger().info("Game Server started on port " + address.getPort());
 		ServerStartEvent event = new ServerStartEvent(ServerEvent.Type.GAME, OffsetDateTime.now()); event.call();
 	}
diff --git a/src/main/java/emu/grasscutter/server/packet/recv/HandlerBuyGoodsReq.java b/src/main/java/emu/grasscutter/server/packet/recv/HandlerBuyGoodsReq.java
new file mode 100644
index 000000000..1df08de43
--- /dev/null
+++ b/src/main/java/emu/grasscutter/server/packet/recv/HandlerBuyGoodsReq.java
@@ -0,0 +1,67 @@
+package emu.grasscutter.server.packet.recv;
+
+import emu.grasscutter.data.GameData;
+import emu.grasscutter.game.inventory.GameItem;
+import emu.grasscutter.game.props.ActionReason;
+import emu.grasscutter.game.props.PlayerProperty;
+import emu.grasscutter.net.packet.Opcodes;
+import emu.grasscutter.net.packet.PacketHandler;
+import emu.grasscutter.net.packet.PacketOpcodes;
+import emu.grasscutter.net.proto.BuyGoodsReqOuterClass;
+import emu.grasscutter.net.proto.ItemParamOuterClass;
+import emu.grasscutter.net.proto.ShopGoodsOuterClass;
+import emu.grasscutter.server.game.GameSession;
+import emu.grasscutter.server.packet.send.PacketBuyGoodsRsp;
+import emu.grasscutter.server.packet.send.PacketStoreItemChangeNotify;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.Optional;
+
+@Opcodes(PacketOpcodes.BuyGoodsReq)
+public class HandlerBuyGoodsReq extends PacketHandler {
+
+    @Override
+    public void handle(GameSession session, byte[] header, byte[] payload) throws Exception {
+        BuyGoodsReqOuterClass.BuyGoodsReq buyGoodsReq = BuyGoodsReqOuterClass.BuyGoodsReq.parseFrom(payload);
+
+        for (ShopGoodsOuterClass.ShopGoods sg : buyGoodsReq.getGoodsListList()) {
+            if (sg.getScoin() > 0 && session.getPlayer().getMora() < buyGoodsReq.getBoughtNum() * sg.getScoin()) {
+                return;
+            }
+            if (sg.getHcoin() > 0 && session.getPlayer().getPrimogems() < buyGoodsReq.getBoughtNum() * sg.getHcoin()) {
+                return;
+            }
+            if (sg.getMcoin() > 0 && session.getPlayer().getCrystals() < buyGoodsReq.getBoughtNum() * sg.getMcoin()) {
+                return;
+            }
+
+            HashMap<GameItem, Integer> itemsCache = new HashMap<>();
+            for (ItemParamOuterClass.ItemParam p : sg.getCostItemListList()) {
+                Optional<GameItem> invItem = session.getPlayer().getInventory().getItems().values().stream().filter(x -> x.getItemId() == p.getItemId()).findFirst();
+                if (invItem.isEmpty() || invItem.get().getCount() < p.getCount())
+                    return;
+                itemsCache.put(invItem.get(), p.getCount() * buyGoodsReq.getBoughtNum());
+            }
+
+            session.getPlayer().setMora(session.getPlayer().getMora() - buyGoodsReq.getBoughtNum() * sg.getScoin());
+            session.getPlayer().setPrimogems(session.getPlayer().getPrimogems() - buyGoodsReq.getBoughtNum() * sg.getHcoin());
+            session.getPlayer().setCrystals(session.getPlayer().getCrystals() - buyGoodsReq.getBoughtNum() * sg.getMcoin());
+
+            if (!itemsCache.isEmpty()) {
+                for (GameItem gi : itemsCache.keySet()) {
+                    session.getPlayer().getInventory().removeItem(gi, itemsCache.get(gi));
+                }
+                itemsCache.clear();
+            }
+
+            session.getPlayer().addShopLimit(sg.getGoodsId(), buyGoodsReq.getBoughtNum());
+            GameItem item = new GameItem(GameData.getItemDataMap().get(sg.getGoodsItem().getItemId()));
+            item.setCount(buyGoodsReq.getBoughtNum() * sg.getGoodsItem().getCount());
+            session.getPlayer().getInventory().addItem(item, ActionReason.Shop, true); // fix: not notify when got virtual item from shop
+            session.send(new PacketBuyGoodsRsp(buyGoodsReq.getShopType(), session.getPlayer().getGoodsLimitNum(sg.getGoodsId()), sg));
+        }
+
+        session.getPlayer().save();
+    }
+}
diff --git a/src/main/java/emu/grasscutter/server/packet/recv/HandlerGetShopReq.java b/src/main/java/emu/grasscutter/server/packet/recv/HandlerGetShopReq.java
index 9b7c6e96d..1dbe1c3ff 100644
--- a/src/main/java/emu/grasscutter/server/packet/recv/HandlerGetShopReq.java
+++ b/src/main/java/emu/grasscutter/server/packet/recv/HandlerGetShopReq.java
@@ -1,9 +1,9 @@
 package emu.grasscutter.server.packet.recv;
 
 import emu.grasscutter.net.packet.Opcodes;
+import emu.grasscutter.net.packet.PacketHandler;
 import emu.grasscutter.net.packet.PacketOpcodes;
 import emu.grasscutter.net.proto.GetShopReqOuterClass.GetShopReq;
-import emu.grasscutter.net.packet.PacketHandler;
 import emu.grasscutter.server.game.GameSession;
 import emu.grasscutter.server.packet.send.PacketGetShopRsp;
 
@@ -12,8 +12,7 @@ public class HandlerGetShopReq extends PacketHandler {
 	@Override
 	public void handle(GameSession session, byte[] header, byte[] payload) throws Exception {
 		GetShopReq req = GetShopReq.parseFrom(payload);
-		
-		// TODO
-		session.send(new PacketGetShopRsp(req.getShopType()));
+
+		session.send(new PacketGetShopRsp(session.getPlayer(), req.getShopType()));
 	}
 }
diff --git a/src/main/java/emu/grasscutter/server/packet/send/PacketBuyGoodsRsp.java b/src/main/java/emu/grasscutter/server/packet/send/PacketBuyGoodsRsp.java
new file mode 100644
index 000000000..07371440d
--- /dev/null
+++ b/src/main/java/emu/grasscutter/server/packet/send/PacketBuyGoodsRsp.java
@@ -0,0 +1,22 @@
+package emu.grasscutter.server.packet.send;
+
+import emu.grasscutter.net.packet.BasePacket;
+import emu.grasscutter.net.packet.PacketOpcodes;
+import emu.grasscutter.net.proto.BuyGoodsRspOuterClass;
+import emu.grasscutter.net.proto.ShopGoodsOuterClass;
+
+public class PacketBuyGoodsRsp extends BasePacket {
+    public PacketBuyGoodsRsp(int shopType, int boughtNum, ShopGoodsOuterClass.ShopGoods sg) {
+        super(PacketOpcodes.BuyGoodsRsp);
+
+        BuyGoodsRspOuterClass.BuyGoodsRsp buyGoodsRsp = BuyGoodsRspOuterClass.BuyGoodsRsp.newBuilder()
+                .setShopType(shopType)
+                .setBoughtNum(boughtNum)
+                .addGoodsList(ShopGoodsOuterClass.ShopGoods.newBuilder()
+                        .mergeFrom(sg)
+                        .setBoughtNum(boughtNum)
+                ).build();
+
+        this.setData(buyGoodsRsp);
+    }
+}
diff --git a/src/main/java/emu/grasscutter/server/packet/send/PacketChangeAvatarRsp.java b/src/main/java/emu/grasscutter/server/packet/send/PacketChangeAvatarRsp.java
index f5efe6808..0fd69fe26 100644
--- a/src/main/java/emu/grasscutter/server/packet/send/PacketChangeAvatarRsp.java
+++ b/src/main/java/emu/grasscutter/server/packet/send/PacketChangeAvatarRsp.java
@@ -11,7 +11,7 @@ public class PacketChangeAvatarRsp extends BasePacket {
 		super(PacketOpcodes.ChangeAvatarRsp);
 
 		ChangeAvatarRsp p = ChangeAvatarRsp.newBuilder()
-				.setRetcode(RetcodeOuterClass.Retcode.RET_SVR_ERROR_VALUE)
+				.setRetcode(RetcodeOuterClass.Retcode.RET_SUCC_VALUE)
 				.setCurGuid(guid)
 				.build();
 		
diff --git a/src/main/java/emu/grasscutter/server/packet/send/PacketGetAllMailRsp.java b/src/main/java/emu/grasscutter/server/packet/send/PacketGetAllMailRsp.java
index 8c8fb4b07..59af30f42 100644
--- a/src/main/java/emu/grasscutter/server/packet/send/PacketGetAllMailRsp.java
+++ b/src/main/java/emu/grasscutter/server/packet/send/PacketGetAllMailRsp.java
@@ -14,32 +14,23 @@ import emu.grasscutter.net.proto.MailTextContentOuterClass.MailTextContent;
 
 import java.time.Instant;
 import java.util.ArrayList;
-import java.util.Base64;
 import java.util.List;
 
 public class PacketGetAllMailRsp extends BasePacket {
 
     public PacketGetAllMailRsp(Player player, boolean isGiftMail) {
         super(PacketOpcodes.GetAllMailRsp);
+        GetAllMailRsp.Builder proto = GetAllMailRsp.newBuilder();
 
         if (isGiftMail) {
-            // TODO: Gift Mail
-            // Make sure to send the stupid empty packet
-            Base64.Decoder decoder = Base64.getDecoder();
-            byte[] rsp = decoder.decode("IAE=");
-            try {
-                GetAllMailRsp var = GetAllMailRsp.parseFrom(rsp);
-                this.setData(var.toBuilder().build());
-            } catch (Exception e) {
-            }
-
+            proto.setIsGiftMail(true);
         } else {
+            proto.setIsGiftMail(false);
+
             if (player.getAllMail().size() != 0) { // Make sure the player has mail
-                GetAllMailRsp.Builder proto = GetAllMailRsp.newBuilder();
                 List<MailData> mailDataList = new ArrayList<MailData>();
 
                 for (Mail message : player.getAllMail()) {
-
                     if(message.stateValue == 1) { // Make sure it isn't a gift
                         if (message.expireTime > (int) Instant.now().getEpochSecond()) { // Make sure the message isn't expired (The game won't show expired mail, but I don't want to send unnecessary information).
                             if(mailDataList.size() <= 1000) { // Make sure that there isn't over 1000 messages in the mailbox. (idk what will happen if there is but the game probably won't like it.)
@@ -79,17 +70,8 @@ public class PacketGetAllMailRsp extends BasePacket {
 
                 proto.addAllMailList(mailDataList);
                 proto.setIsTruncated(mailDataList.size() <= 1000 ? false : true); // When enabled this will send a notification to the user telling them their inbox is full and they should delete old messages when opening the mailbox.
-
-                this.setData(proto.build());
-            } else {
-                // Make sure to send the stupid empty packet
-                Base64.Decoder decoder = Base64.getDecoder();
-                byte[] rsp = decoder.decode("IAE=");
-                try {
-                    GetAllMailRsp var = GetAllMailRsp.parseFrom(rsp);
-                    this.setData(var.toBuilder().build());
-                } catch (Exception e) {}
             }
         }
+        this.setData(proto.build());
     }
 }
diff --git a/src/main/java/emu/grasscutter/server/packet/send/PacketGetPlayerFriendListRsp.java b/src/main/java/emu/grasscutter/server/packet/send/PacketGetPlayerFriendListRsp.java
index b2628e36d..dbaa4b316 100644
--- a/src/main/java/emu/grasscutter/server/packet/send/PacketGetPlayerFriendListRsp.java
+++ b/src/main/java/emu/grasscutter/server/packet/send/PacketGetPlayerFriendListRsp.java
@@ -8,7 +8,7 @@ import emu.grasscutter.net.packet.PacketOpcodes;
 import emu.grasscutter.net.proto.FriendBriefOuterClass.FriendBrief;
 import emu.grasscutter.net.proto.FriendOnlineStateOuterClass.FriendOnlineState;
 import emu.grasscutter.net.proto.GetPlayerFriendListRspOuterClass.GetPlayerFriendListRsp;
-import emu.grasscutter.net.proto.HeadImageOuterClass.HeadImage;
+import emu.grasscutter.net.proto.ProfilePictureOuterClass.ProfilePicture;
 import emu.grasscutter.net.proto.PlatformTypeOuterClass;
 
 public class PacketGetPlayerFriendListRsp extends BasePacket {
@@ -20,7 +20,7 @@ public class PacketGetPlayerFriendListRsp extends BasePacket {
 				.setUid(GameConstants.SERVER_CONSOLE_UID)
 				.setNickname("Server")
 				.setLevel(1)
-				.setAvatarId(HeadImage.newBuilder().setAvatarId(GameConstants.MAIN_CHARACTER_FEMALE).getAvatarId())
+				.setProfilePicture(ProfilePicture.newBuilder().setAvatarId(GameConstants.MAIN_CHARACTER_FEMALE))
 				.setWorldLevel(0)
 				.setSignature("")
 				.setLastActiveTime((int) (System.currentTimeMillis() / 1000f))
diff --git a/src/main/java/emu/grasscutter/server/packet/send/PacketGetShopRsp.java b/src/main/java/emu/grasscutter/server/packet/send/PacketGetShopRsp.java
index 64d415763..4f57c72e6 100644
--- a/src/main/java/emu/grasscutter/server/packet/send/PacketGetShopRsp.java
+++ b/src/main/java/emu/grasscutter/server/packet/send/PacketGetShopRsp.java
@@ -1,19 +1,60 @@
 package emu.grasscutter.server.packet.send;
 
+import emu.grasscutter.Grasscutter;
+import emu.grasscutter.game.player.Player;
+import emu.grasscutter.game.shop.ShopInfo;
+import emu.grasscutter.game.shop.ShopManager;
 import emu.grasscutter.net.packet.BasePacket;
 import emu.grasscutter.net.packet.PacketOpcodes;
-import emu.grasscutter.net.proto.GetShopRspOuterClass.GetShopRsp;
+import emu.grasscutter.net.proto.GetShopRspOuterClass;
+import emu.grasscutter.net.proto.ItemParamOuterClass;
+import emu.grasscutter.net.proto.ShopGoodsOuterClass.ShopGoods;
 import emu.grasscutter.net.proto.ShopOuterClass.Shop;
 
+import java.util.ArrayList;
+import java.util.List;
+import java.util.stream.Collectors;
+
 public class PacketGetShopRsp extends BasePacket {
-	
-	public PacketGetShopRsp(int shopType) {
+
+	public PacketGetShopRsp(Player inv, int shopType) {
 		super(PacketOpcodes.GetShopRsp);
 
-		GetShopRsp proto = GetShopRsp.newBuilder()
-				.setShop(Shop.newBuilder().setShopType(shopType))
-				.build();
-		
-		this.setData(proto);
+		// TODO: CityReputationLevel
+		Shop.Builder shop = Shop.newBuilder()
+				.setShopType(shopType)
+				.setCityId(1) //mock
+				.setCityReputationLevel(10); //mock
+
+		ShopManager manager = Grasscutter.getGameServer().getShopManager();
+		if (manager.getShopData().get(shopType) != null) {
+			List<ShopInfo> list = manager.getShopData().get(shopType);
+			List<ShopGoods> goodsList = new ArrayList<>();
+			for (ShopInfo info : list) {
+				ShopGoods.Builder goods = ShopGoods.newBuilder()
+						.setGoodsId(info.getGoodsId())
+						.setGoodsItem(ItemParamOuterClass.ItemParam.newBuilder().setItemId(info.getGoodsItem().getId()).setCount(info.getGoodsItem().getCount()).build())
+						.setScoin(info.getScoin())
+						.setHcoin(info.getHcoin())
+						.setBoughtNum(inv.getGoodsLimitNum(info.getGoodsId()))
+						.setBuyLimit(info.getBuyLimit())
+						.setBeginTime(info.getBeginTime())
+						.setEndTime(info.getEndTime())
+						.setNextRefreshTime(info.getNextRefreshTime())
+						.setMinLevel(info.getMinLevel())
+						.setMaxLevel(info.getMaxLevel())
+						.addAllPreGoodsIdList(info.getPreGoodsIdList())
+						.setMcoin(info.getMcoin())
+						.setDisableType(info.getDisableType())
+						.setSecondarySheetId(info.getSecondarySheetId());
+				if (info.getCostItemList() != null) {
+					goods.addAllCostItemList(info.getCostItemList().stream().map(x -> ItemParamOuterClass.ItemParam.newBuilder().setItemId(x.getId()).setCount(x.getCount()).build()).collect(Collectors.toList()));
+				}
+				goodsList.add(goods.build());
+			}
+			shop.addAllGoodsList(goodsList);
+		}
+
+		this.setData(GetShopRspOuterClass.GetShopRsp.newBuilder().setShop(shop).build());
 	}
 }
diff --git a/src/main/java/emu/grasscutter/server/packet/send/PacketSetPlayerHeadImageRsp.java b/src/main/java/emu/grasscutter/server/packet/send/PacketSetPlayerHeadImageRsp.java
index 9b736dc3e..4cbfd4b46 100644
--- a/src/main/java/emu/grasscutter/server/packet/send/PacketSetPlayerHeadImageRsp.java
+++ b/src/main/java/emu/grasscutter/server/packet/send/PacketSetPlayerHeadImageRsp.java
@@ -3,7 +3,7 @@ package emu.grasscutter.server.packet.send;
 import emu.grasscutter.game.player.Player;
 import emu.grasscutter.net.packet.BasePacket;
 import emu.grasscutter.net.packet.PacketOpcodes;
-import emu.grasscutter.net.proto.HeadImageOuterClass.HeadImage;
+import emu.grasscutter.net.proto.ProfilePictureOuterClass.ProfilePicture;
 import emu.grasscutter.net.proto.SetPlayerHeadImageRspOuterClass.SetPlayerHeadImageRsp;
 
 public class PacketSetPlayerHeadImageRsp extends BasePacket {
@@ -12,7 +12,7 @@ public class PacketSetPlayerHeadImageRsp extends BasePacket {
 		super(PacketOpcodes.SetPlayerHeadImageRsp);
 		
 		SetPlayerHeadImageRsp proto = SetPlayerHeadImageRsp.newBuilder()
-				.setAvatarId(HeadImage.newBuilder().setAvatarId(player.getHeadImage()).getAvatarId())
+				.setProfilePicture(ProfilePicture.newBuilder().setAvatarId(player.getHeadImage()))
 				.build();
 		
 		this.setData(proto);
diff --git a/start.cmd b/start.cmd
index f44a5f00d..9cee1a999 100644
--- a/start.cmd
+++ b/start.cmd
@@ -33,7 +33,7 @@ if not "%JAVA_PATH%" == "DO_NOT_CHECK_PATH" (
 		goto :EXIT
 	)
 ) else set JAVA_PATH=
-if not exist "%SERVER_PATH%grasscutter.jar" (
+if not exist "%SERVER_PATH%%SERVER_JAR_NAME%" (
 	call :LOG [ERROR] Server jar not found.
 	goto :EXIT
 )
@@ -129,7 +129,7 @@ del /f /q "%temp%\db.vbs" >nul 2>nul
 
 :GAME
 call :LOG [INFO] Starting server...
-"%JAVA_PATH%java.exe" -jar "%SERVER_PATH%grasscutter.jar"
+"%JAVA_PATH%java.exe" -jar "%SERVER_PATH%%SERVER_JAR_NAME%"
 call :LOG [INFO] Server stopped
 
 :EXIT