diff --git a/titles/mai2/base.py b/titles/mai2/base.py
index 16b2039..b3c6a1d 100644
--- a/titles/mai2/base.py
+++ b/titles/mai2/base.py
@@ -490,7 +490,6 @@ class Mai2Base:
                     pres_id += present['itemId']
                     items.append({"itemId": pres_id, "itemKind": 4, "stock": present['stock'], "isValid": True})
                     self.logger.info(f"Give user {data['userId']} {present['stock']}x item {present['itemId']} (kind {present['itemKind']}) as present")
-                    await self.data.item.put_item(data["userId"], present['itemKind'], present['itemId'], present['stock'], True)
         
         return { "userId": data.get("userId", 0), "length": len(items), "userPresentList": items}
     
diff --git a/titles/mai2/dx.py b/titles/mai2/dx.py
index 3b28f30..7a067d7 100644
--- a/titles/mai2/dx.py
+++ b/titles/mai2/dx.py
@@ -196,10 +196,17 @@ class Mai2DX(Mai2Base):
 
         if "userItemList" in upsert and len(upsert["userItemList"]) > 0:
             for item in upsert["userItemList"]:
+                if item["itemKind"] == 4:
+                    item_id = item["itemId"] % 1000000
+                    item_kind = item["itemId"] // 1000000
+                else:
+                    item_id = item["itemId"]
+                    item_kind = item["itemKind"]
+                
                 await self.data.item.put_item(
                     user_id,
-                    int(item["itemKind"]),
-                    item["itemId"],
+                    item_kind,
+                    item_id,
                     item["stock"],
                     item["isValid"],
                 )
@@ -325,8 +332,8 @@ class Mai2DX(Mai2Base):
         }
 
     async def handle_get_user_item_api_request(self, data: Dict) -> Dict:
-        kind = int(data["nextIndex"] / 10000000000)
-        next_idx = int(data["nextIndex"] % 10000000000)
+        kind = data["nextIndex"] // 10000000000
+        next_idx = data["nextIndex"] % 10000000000
         items: List[Dict[str, Any]] = []
         
         if kind == 4: # presents
@@ -348,7 +355,6 @@ class Mai2DX(Mai2Base):
                         pres_id += present['itemId']
                         items.append({"itemId": pres_id, "itemKind": 4, "stock": present['stock'], "isValid": True})
                         self.logger.info(f"Give user {data['userId']} {present['stock']}x item {present['itemId']} (kind {present['itemKind']}) as present")
-                        await self.data.item.put_item(data["userId"], present['itemKind'], present['itemId'], present['stock'], True)
 
         else:
             user_item_list = await self.data.item.get_items(data["userId"], kind)