diff --git a/scenes/LevelGraphEditor.tscn b/scenes/LevelGraphEditor.tscn
index a355b85..b50e95a 100644
--- a/scenes/LevelGraphEditor.tscn
+++ b/scenes/LevelGraphEditor.tscn
@@ -35,6 +35,7 @@ offset_bottom = 32.0
 text = "level_graph_editor"
 
 [node name="CreateOrEditorPanel" type="Panel" parent="."]
+visible = false
 layout_mode = 1
 anchors_preset = 15
 anchor_right = 1.0
diff --git a/scripts/map/dateBean/RoomPlacementData.cs b/scripts/map/dateBean/RoomPlacementData.cs
index 3895d16..854a397 100644
--- a/scripts/map/dateBean/RoomPlacementData.cs
+++ b/scripts/map/dateBean/RoomPlacementData.cs
@@ -19,4 +19,16 @@ public class RoomPlacementData
     /// <para>放置的房间模板</para>
     /// </summary>
     public Room? Room { get; set; }
+    
+    /// <summary>
+    /// <para>Parent room slot</para>
+    /// <para>父级房间的插槽</para>
+    /// </summary>
+    public RoomSlot? ParentRoomSlot { get; set; }
+    
+    /// <summary>
+    /// <para>A slot for the new room</para>
+    /// <para>新房间的插槽</para>
+    /// </summary>
+    public RoomSlot? NewRoomSlot { get; set; }
 }
\ No newline at end of file
diff --git a/scripts/map/roomPlacer/PatchworkRoomPlacementStrategy.cs b/scripts/map/roomPlacer/PatchworkRoomPlacementStrategy.cs
index 879d155..1c57ec3 100644
--- a/scripts/map/roomPlacer/PatchworkRoomPlacementStrategy.cs
+++ b/scripts/map/roomPlacer/PatchworkRoomPlacementStrategy.cs
@@ -1,7 +1,6 @@
 using System;
 using System.Collections.Generic;
 using System.Threading.Tasks;
-using ColdMint.scripts.debug;
 using ColdMint.scripts.levelGraphEditor;
 using ColdMint.scripts.map.dateBean;
 using ColdMint.scripts.map.interfaces;
@@ -85,7 +84,7 @@ public class PatchworkRoomPlacementStrategy : IRoomPlacementStrategy
             _measuringArea2D?.RemoveChild(_measuringCollisionShape2D);
             _measuringCollisionShape2D = null;
         }
-        
+
         if (_measuringArea2D != null)
         {
             _measuringArea2D?.QueueFree();
@@ -169,7 +168,9 @@ public class PatchworkRoomPlacementStrategy : IRoomPlacementStrategy
             var roomPlacementData = new RoomPlacementData
             {
                 Room = newRoom,
-                Position = position
+                Position = position,
+                ParentRoomSlot = mainRoomSlot,
+                NewRoomSlot = newRoomSlot
             };
             useableRoomPlacementData.Add(roomPlacementData);
         }
@@ -181,7 +182,20 @@ public class PatchworkRoomPlacementStrategy : IRoomPlacementStrategy
         else
         {
             var index = randomNumberGenerator.Randi() % useableRoomPlacementData.Count;
-            return useableRoomPlacementData[(int)index];
+            var roomPlacementData = useableRoomPlacementData[(int)index];
+            //Be sure to mark its slot as a match when you use it.
+            //一定要在使用时，将其插槽标记为匹配。
+            if (roomPlacementData.ParentRoomSlot != null)
+            {
+                roomPlacementData.ParentRoomSlot.Matched = true;
+            }
+
+            if (roomPlacementData.NewRoomSlot != null)
+            {
+                roomPlacementData.NewRoomSlot.Matched = true;
+            }
+
+            return roomPlacementData;
         }
     }
 
@@ -287,8 +301,6 @@ public class PatchworkRoomPlacementStrategy : IRoomPlacementStrategy
                     continue;
                 }
 
-                mainRoomSlot.Matched = true;
-                newRoomSlot.Matched = true;
                 outMainRoomSlot = mainRoomSlot;
                 outNewRoomSlot = newRoomSlot;
                 return Task.FromResult(true);