diff --git a/src/main/java/emu/grasscutter/game/quest/GameMainQuest.java b/src/main/java/emu/grasscutter/game/quest/GameMainQuest.java
index 38cf6f154..4688c0dae 100644
--- a/src/main/java/emu/grasscutter/game/quest/GameMainQuest.java
+++ b/src/main/java/emu/grasscutter/game/quest/GameMainQuest.java
@@ -16,6 +16,7 @@ import emu.grasscutter.net.proto.ChildQuestOuterClass.ChildQuest;
 import emu.grasscutter.net.proto.ParentQuestOuterClass.ParentQuest;
 import emu.grasscutter.server.packet.send.*;
 import emu.grasscutter.utils.ConversionUtils;
+import emu.grasscutter.utils.Utils;
 import java.util.*;
 import java.util.stream.Collectors;
 import lombok.*;
@@ -120,6 +121,16 @@ public class GameMainQuest {
         this.triggerQuestVarAction(i, this.questVars[i]);
     }
 
+    public void randomQuestVar(int i, int low, int high) {
+        int previousValue = this.questVars[i];
+        this.questVars[i] = Utils.random.nextInt(low, high);
+        Grasscutter.getLogger()
+                .debug(
+                        "questVar {} value randomized from {} to {}", i, previousValue, this.questVars[i]);
+
+        this.triggerQuestVarAction(i, this.questVars[i]);
+    }
+
     public void triggerQuestVarAction(int index, int value) {
         var questManager = this.getQuestManager();
         questManager.queueEvent(QuestCond.QUEST_COND_QUEST_VAR_EQUAL, index, value);
diff --git a/src/main/java/emu/grasscutter/game/quest/enums/QuestExec.java b/src/main/java/emu/grasscutter/game/quest/enums/QuestExec.java
index faba81e32..07c01a8b4 100644
--- a/src/main/java/emu/grasscutter/game/quest/enums/QuestExec.java
+++ b/src/main/java/emu/grasscutter/game/quest/enums/QuestExec.java
@@ -59,7 +59,7 @@ public enum QuestExec implements QuestTrigger {
     QUEST_EXEC_SET_QUEST_VAR(48),
     QUEST_EXEC_INC_QUEST_VAR(49),
     QUEST_EXEC_DEC_QUEST_VAR(50),
-    QUEST_EXEC_RANDOM_QUEST_VAR(51), // missing
+    QUEST_EXEC_RANDOM_QUEST_VAR(51),
     QUEST_EXEC_ACTIVATE_SCANNING_PIC(52), // missing, currently unused
     QUEST_EXEC_RELOAD_SCENE_TAG(53), // missing
     QUEST_EXEC_REGISTER_DYNAMIC_GROUP_ONLY(54), // missing
diff --git a/src/main/java/emu/grasscutter/game/quest/exec/ExecRandomQuestVar.java b/src/main/java/emu/grasscutter/game/quest/exec/ExecRandomQuestVar.java
new file mode 100644
index 000000000..0fa3ced33
--- /dev/null
+++ b/src/main/java/emu/grasscutter/game/quest/exec/ExecRandomQuestVar.java
@@ -0,0 +1,16 @@
+package emu.grasscutter.game.quest.exec;
+
+import emu.grasscutter.data.excels.quest.QuestData;
+import emu.grasscutter.game.quest.GameQuest;
+import emu.grasscutter.game.quest.QuestValueExec;
+import emu.grasscutter.game.quest.enums.QuestExec;
+import emu.grasscutter.game.quest.handlers.QuestExecHandler;
+
+@QuestValueExec(QuestExec.QUEST_EXEC_RANDOM_QUEST_VAR)
+public class ExecRandomQuestVar extends QuestExecHandler {
+    @Override
+    public boolean execute(GameQuest quest, QuestData.QuestExecParam condition, String... paramStr) {
+        quest.getMainQuest().randomQuestVar(Integer.parseInt(paramStr[0]), Integer.parseInt(paramStr[1]), Integer.parseInt(paramStr[2]));
+        return true;
+    }
+}