diff --git a/assets/share/item/synthesize/ENTRY_ITEM_FROM.png b/assets/share/item/synthesize/ENTRY_ITEM_FROM.png
new file mode 100644
index 000000000..c233deab1
Binary files /dev/null and b/assets/share/item/synthesize/ENTRY_ITEM_FROM.png differ
diff --git a/assets/share/item/synthesize/ENTRY_ITEM_TO.png b/assets/share/item/synthesize/ENTRY_ITEM_TO.png
new file mode 100644
index 000000000..d62184a5a
Binary files /dev/null and b/assets/share/item/synthesize/ENTRY_ITEM_TO.png differ
diff --git a/assets/share/item/synthesize/ITEM_NAME.png b/assets/share/item/synthesize/ITEM_NAME.png
new file mode 100644
index 000000000..01f92f4fc
Binary files /dev/null and b/assets/share/item/synthesize/ITEM_NAME.png differ
diff --git a/assets/share/item/synthesize/SWITCH_RARITY.png b/assets/share/item/synthesize/SWITCH_RARITY.png
new file mode 100644
index 000000000..5d87b4780
Binary files /dev/null and b/assets/share/item/synthesize/SWITCH_RARITY.png differ
diff --git a/assets/share/item/synthesize/SYNTHESIZE_AMOUNT.png b/assets/share/item/synthesize/SYNTHESIZE_AMOUNT.png
new file mode 100644
index 000000000..264f7004f
Binary files /dev/null and b/assets/share/item/synthesize/SYNTHESIZE_AMOUNT.png differ
diff --git a/assets/share/item/synthesize/SYNTHESIZE_MINUS.png b/assets/share/item/synthesize/SYNTHESIZE_MINUS.png
new file mode 100644
index 000000000..359d68b1e
Binary files /dev/null and b/assets/share/item/synthesize/SYNTHESIZE_MINUS.png differ
diff --git a/assets/share/item/synthesize/SYNTHESIZE_PLUS.png b/assets/share/item/synthesize/SYNTHESIZE_PLUS.png
new file mode 100644
index 000000000..513b8ad80
Binary files /dev/null and b/assets/share/item/synthesize/SYNTHESIZE_PLUS.png differ
diff --git a/tasks/combat/obtain.py b/tasks/combat/obtain.py
index e144c31e3..50f941b87 100644
--- a/tasks/combat/obtain.py
+++ b/tasks/combat/obtain.py
@@ -30,10 +30,11 @@ class CombatObtain(PlannerMixin):
     # True to exit and reenter to get obtained items
     obtain_frequent_check = False
 
-    def _obtain_enter(self, entry, skip_first_screenshot=True):
+    def _obtain_enter(self, entry, appear_button, skip_first_screenshot=True):
         """
         Args:
             entry: Item entry
+            appear_button:
             skip_first_screenshot:
 
         Pages:
@@ -41,7 +42,7 @@ class CombatObtain(PlannerMixin):
             out: ITEM_CLOSE
         """
         logger.info(f'Obtain enter {entry}')
-        self.interval_clear(COMBAT_PREPARE)
+        self.interval_clear(appear_button)
         while 1:
             if skip_first_screenshot:
                 skip_first_screenshot = False
@@ -50,9 +51,9 @@ class CombatObtain(PlannerMixin):
 
             if self.appear(ITEM_CLOSE):
                 break
-            if self.appear(COMBAT_PREPARE, interval=2):
+            if self.appear(appear_button, interval=2):
                 self.device.click(entry)
-                self.interval_reset(COMBAT_PREPARE)
+                self.interval_reset(appear_button)
                 continue
 
         # Wait animation
@@ -70,9 +71,10 @@ class CombatObtain(PlannerMixin):
                 logger.warning('Wait obtain item timeout')
                 break
 
-    def _obtain_close(self, skip_first_screenshot=True):
+    def _obtain_close(self, check_button, skip_first_screenshot=True):
         """
         Args:
+            check_button:
             skip_first_screenshot:
 
         Pages:
@@ -87,8 +89,13 @@ class CombatObtain(PlannerMixin):
             else:
                 self.device.screenshot()
 
-            if not self.appear(ITEM_CLOSE) and self.appear(COMBAT_PREPARE) and self.appear(MAY_OBTAIN):
-                break
+            if not self.appear(ITEM_CLOSE):
+                if callable(check_button):
+                    if check_button():
+                        break
+                else:
+                    if self.appear(check_button):
+                        break
             if self.appear_then_click(ITEM_CLOSE, interval=2):
                 continue
 
@@ -219,7 +226,7 @@ class CombatObtain(PlannerMixin):
                 logger.error(f'No obtain entry for {entry_index}')
                 break
 
-            self._obtain_enter(entry)
+            self._obtain_enter(entry, appear_button=COMBAT_PREPARE)
             item = self._obtain_parse()
             if item.item == KEYWORDS_ITEM_CURRENCY.Trailblaze_EXP:
                 logger.warning('Trailblaze_EXP is in obtain list, OBTAIN_TRAILBLAZE_EXP may need to verify')
@@ -229,7 +236,7 @@ class CombatObtain(PlannerMixin):
                 items.append(item)
                 index += 1
                 prev = item
-            self._obtain_close()
+            self._obtain_close(check_button=MAY_OBTAIN)
 
         logger.hr('Obtained Result')
         for item in items:
diff --git a/tasks/item/assets/assets_item_synthesize.py b/tasks/item/assets/assets_item_synthesize.py
new file mode 100644
index 000000000..863e4ec0a
--- /dev/null
+++ b/tasks/item/assets/assets_item_synthesize.py
@@ -0,0 +1,75 @@
+from module.base.button import Button, ButtonWrapper
+
+# This file was auto-generated, do not modify it manually. To generate:
+# ``` python -m dev_tools.button_extract ```
+
+ENTRY_ITEM_FROM = ButtonWrapper(
+    name='ENTRY_ITEM_FROM',
+    share=Button(
+        file='./assets/share/item/synthesize/ENTRY_ITEM_FROM.png',
+        area=(825, 408, 905, 488),
+        search=(805, 388, 925, 508),
+        color=(70, 105, 114),
+        button=(825, 408, 905, 488),
+    ),
+)
+ENTRY_ITEM_TO = ButtonWrapper(
+    name='ENTRY_ITEM_TO',
+    share=Button(
+        file='./assets/share/item/synthesize/ENTRY_ITEM_TO.png',
+        area=(815, 193, 915, 293),
+        search=(795, 173, 935, 313),
+        color=(157, 143, 120),
+        button=(815, 193, 915, 293),
+    ),
+)
+ITEM_NAME = ButtonWrapper(
+    name='ITEM_NAME',
+    share=Button(
+        file='./assets/share/item/synthesize/ITEM_NAME.png',
+        area=(657, 95, 1057, 118),
+        search=(637, 75, 1077, 138),
+        color=(92, 100, 111),
+        button=(657, 95, 1057, 118),
+    ),
+)
+SWITCH_RARITY = ButtonWrapper(
+    name='SWITCH_RARITY',
+    share=Button(
+        file='./assets/share/item/synthesize/SWITCH_RARITY.png',
+        area=(1180, 262, 1216, 298),
+        search=(1160, 242, 1236, 318),
+        color=(89, 96, 124),
+        button=(1180, 262, 1216, 298),
+    ),
+)
+SYNTHESIZE_AMOUNT = ButtonWrapper(
+    name='SYNTHESIZE_AMOUNT',
+    share=Button(
+        file='./assets/share/item/synthesize/SYNTHESIZE_AMOUNT.png',
+        area=(683, 548, 1034, 568),
+        search=(663, 528, 1054, 588),
+        color=(122, 132, 147),
+        button=(683, 548, 1034, 568),
+    ),
+)
+SYNTHESIZE_MINUS = ButtonWrapper(
+    name='SYNTHESIZE_MINUS',
+    share=Button(
+        file='./assets/share/item/synthesize/SYNTHESIZE_MINUS.png',
+        area=(575, 569, 605, 589),
+        search=(555, 549, 625, 609),
+        color=(235, 235, 235),
+        button=(575, 569, 605, 589),
+    ),
+)
+SYNTHESIZE_PLUS = ButtonWrapper(
+    name='SYNTHESIZE_PLUS',
+    share=Button(
+        file='./assets/share/item/synthesize/SYNTHESIZE_PLUS.png',
+        area=(1125, 567, 1155, 589),
+        search=(1105, 547, 1175, 609),
+        color=(228, 228, 228),
+        button=(1125, 567, 1155, 589),
+    ),
+)
diff --git a/tasks/item/synthesize.py b/tasks/item/synthesize.py
new file mode 100644
index 000000000..7867c0e04
--- /dev/null
+++ b/tasks/item/synthesize.py
@@ -0,0 +1,211 @@
+import cv2
+import numpy as np
+
+from module.base.timer import Timer
+from module.base.utils import color_similarity_2d, crop, image_size
+from module.logger import logger
+from module.ocr.ocr import Ocr
+from tasks.base.page import page_synthesize
+from tasks.combat.obtain import CombatObtain
+from tasks.item.assets.assets_item_synthesize import *
+from tasks.planner.keywords import ITEM_CLASSES
+from tasks.planner.model import ObtainedAmmount
+from tasks.planner.scan import OcrItemName
+
+RARITY_COLOR = {
+    'green': (68, 127, 124),
+    'blue': (76, 124, 191),
+    'purple': (141, 97, 203),
+}
+
+
+def image_color_count(image, color, threshold=221):
+    mask = color_similarity_2d(image, color=color)
+    cv2.inRange(mask, threshold, 255, dst=mask)
+    sum_ = cv2.countNonZero(mask)
+    return sum_
+
+
+class WhiteStrip(Ocr):
+    def pre_process(self, image):
+        mask = color_similarity_2d(image, color=(255, 255, 255))
+        mask = cv2.inRange(mask, 180, 255, dst=mask)
+
+        mask = np.mean(mask, axis=0)
+        point = np.array(cv2.findNonZero(mask))[:, 0, 1]
+        x1, x2 = point.min(), point.max()
+
+        _, y = image_size(image)
+        image = crop(image, (x1 - 5, 0, x2 + 5, y), copy=False)
+        return image
+
+
+class SynthesizeItemName(OcrItemName, WhiteStrip):
+    pass
+
+
+class Synthesize(CombatObtain):
+    def item_get_rarity(self, button) -> str | None:
+        """
+        Args:
+            button:
+
+        Returns:
+            str: Rarity color or None if no match
+
+        Pages:
+            in: page_synthesize
+        """
+        image = self.image_crop(button)
+        image = cv2.GaussianBlur(image, (3, 3), 0)
+        x2, y2 = image_size(image)
+        y1 = y2 - int(y2 // 4)
+        image = crop(image, (0, y1, x2, y2))
+        # self.device.image_show(image)
+        # print(image.shape)
+
+        # Must contain 30% target color at icon bottom
+        minimum = x2 * (y2 - y1) * 0.3
+        for rarity, color in RARITY_COLOR.items():
+            count = image_color_count(image, color=color, threshold=221)
+            # print(rarity, count, minimum)
+            if count > minimum:
+                return rarity
+
+        return None
+
+    def item_get_rarity_retry(self, button, skip_first_screenshot=True) -> str | None:
+        timeout = Timer(1, count=3).start()
+        while 1:
+            if skip_first_screenshot:
+                skip_first_screenshot = False
+            else:
+                self.device.screenshot()
+
+            # End
+            current = self.item_get_rarity(button)
+            logger.attr('SynthesizeRarity', current)
+            if current is not None:
+                return current
+            if timeout.reached():
+                logger.warning(f'item_get_rarity_retry timeout')
+                return None
+
+    def synthesize_rarity_set(self, rarity: str, skip_first_screenshot=True) -> bool:
+        """
+        Args:
+            rarity: "green" or "blue"
+                note that rarity is the one you consume to synthesize
+            skip_first_screenshot:
+
+        Returns:
+            bool: If switched
+
+        Pages:
+            in: page_synthesize
+        """
+        logger.info(f'item_synthesize_rarity_set: {rarity}')
+
+        switched = False
+        self.interval_clear(page_synthesize.check_button)
+        while 1:
+            if skip_first_screenshot:
+                skip_first_screenshot = False
+            else:
+                self.device.screenshot()
+
+            # End
+            current = self.item_get_rarity(ENTRY_ITEM_FROM)
+            logger.attr('SynthesizeRarity', current)
+            if current is not None and current == rarity:
+                break
+
+            # Click
+            if self.ui_page_appear(page_synthesize, interval=2):
+                self.device.click(SWITCH_RARITY)
+                switched = True
+                continue
+
+        return switched
+
+    def synthesize_rarity_reset(self, skip_first_screenshot=True):
+        """
+        Reset rarity switch, so current item will pin on the first row
+
+        Returns:
+            bool: If success
+        """
+
+        current = self.item_get_rarity_retry(ENTRY_ITEM_FROM)
+        if current == 'blue':
+            r1, r2 = 'green', 'blue'
+        elif current == 'green':
+            r1, r2 = 'blue', 'green'
+        else:
+            logger.error(f'item_synthesize_rarity_reset: Unknown current rarity {current}')
+            return False
+
+        self.synthesize_rarity_set(r1, skip_first_screenshot=skip_first_screenshot)
+        self.synthesize_rarity_set(r2, skip_first_screenshot=True)
+        return True
+
+    def synthesize_obtain_get(self) -> list[ObtainedAmmount]:
+        """
+        Update item amount from synthesize page
+        """
+        logger.hr('Synthesize obtain get', level=2)
+        items = []
+
+        def obtain_end():
+            return self.item_get_rarity(ENTRY_ITEM_FROM) is not None
+
+        # Purple
+        self.synthesize_rarity_set('blue')
+        self._obtain_enter(ENTRY_ITEM_TO, appear_button=page_synthesize.check_button)
+        item = self._obtain_parse()
+        if item is not None:
+            items.append(item)
+        self._obtain_close(check_button=obtain_end)
+        # Blue
+        self._obtain_enter(ENTRY_ITEM_FROM, appear_button=page_synthesize.check_button)
+        item = self._obtain_parse()
+        if item is not None:
+            items.append(item)
+        self._obtain_close(check_button=obtain_end)
+        # Green
+        self.synthesize_rarity_set('green')
+        self._obtain_enter(ENTRY_ITEM_FROM, appear_button=page_synthesize.check_button)
+        item = self._obtain_parse()
+        if item is not None:
+            items.append(item)
+        self._obtain_close(check_button=obtain_end)
+
+        logger.hr('Obtained Result')
+        for item in items:
+            # Pretend everything is full
+            # item.value += 1000
+            logger.info(f'Obtained item: {item.item.name}, {item.value}')
+        """
+        <<< OBTAIN GET RESULT >>>                   
+        ItemAmount: Arrow_of_the_Starchaser, 15     
+        ItemAmount: Arrow_of_the_Demon_Slayer, 68   
+        ItemAmount: Arrow_of_the_Beast_Hunter, 85   
+        """
+        self.planner.load_obtained_amount(items)
+        self.planner_write()
+        return items
+
+    def synthesize_get_item(self):
+        ocr = SynthesizeItemName(ITEM_NAME)
+        item = ocr.matched_single_line(self.device.image, keyword_classes=ITEM_CLASSES)
+        if item is None:
+            logger.warning('synthesize_get_item: Unknown item name')
+            return None
+
+        return item
+
+
+if __name__ == '__main__':
+    self = Synthesize('src')
+    self.device.screenshot()
+    self.synthesize_obtain_get()
diff --git a/tasks/planner/scan.py b/tasks/planner/scan.py
index c8ae60745..5580c177b 100644
--- a/tasks/planner/scan.py
+++ b/tasks/planner/scan.py
@@ -21,8 +21,11 @@ class OcrItemName(Ocr):
     def after_process(self, result):
         result = result.replace('念火之心', '忿火之心')
         result = re.sub('工造机$', '工造机杼', result)
-        result = re.sub('工造轮', '工造迴轮', result)
+        result = re.sub('工造迥?轮', '工造迴轮', result)
         result = re.sub('月狂[療撩]?牙', '月狂獠牙', result)
+        # Error words on blank background
+        result = re.sub('^[國東]', '', result)
+        result = re.sub('時$', '', result)
         return result