diff --git a/Common/Database/Avatar.cs b/Common/Database/Avatar.cs
index 8bac92d..3ef9c33 100644
--- a/Common/Database/Avatar.cs
+++ b/Common/Database/Avatar.cs
@@ -1,6 +1,5 @@
 using Common.Resources.Proto;
 using Common.Utils.ExcelReader;
-using Newtonsoft.Json;
 using MongoDB.Bson;
 using MongoDB.Driver;
 
@@ -62,6 +61,18 @@ namespace Common.Database
 
             return avatar;
         }
+
+        public static void SaveBulk(IEnumerable<AvatarScheme> avatars)
+        {
+            List<WriteModel<AvatarScheme>> ops = new();
+
+            foreach (AvatarScheme avatar in avatars)
+            {
+                ops.Add(avatar.SaveOp());
+            }
+
+            collection.BulkWrite(ops);
+        }
     }
 
     public class AvatarScheme : Resources.Proto.Avatar
@@ -75,12 +86,16 @@ namespace Common.Database
         public uint OwnerUid { get; set; }
         public new List<AvatarSkill> SkillLists { get; set; } = new();
 
-
         public void Save()
         {
             Avatar.collection.ReplaceOne(Builders<AvatarScheme>.Filter.Eq(avatar => avatar.Id, Id), this);
         }
 
+        public WriteModel<AvatarScheme> SaveOp()
+        {
+            return new ReplaceOneModel<AvatarScheme>(Builders<AvatarScheme>.Filter.Eq(avatar => avatar.Id, Id), this);
+        }
+
         public PlayerLevelData.LevelData AddExp(uint exp)
         {
             PlayerLevelData.LevelData levelData = AvatarLevelData.GetInstance().CalculateLevel((int)Level, (int)(exp + Exp));
diff --git a/Common/Database/OpenWorld.cs b/Common/Database/OpenWorld.cs
index 82e5131..d87decd 100644
--- a/Common/Database/OpenWorld.cs
+++ b/Common/Database/OpenWorld.cs
@@ -33,6 +33,18 @@ namespace Common.Database
             InitData(uid);
             return collection.AsQueryable().Where(x => x.OwnerUid == uid && ShowMapList.Contains(x.MapId)).ToList(); ;
         }
+
+        public static void SaveBulk(IEnumerable<OpenWorldScheme> openWorlds)
+        {
+            List<WriteModel<OpenWorldScheme>> ops = new();
+
+            foreach (OpenWorldScheme ow in openWorlds)
+            {
+                ops.Add(ow.SaveOp());
+            }
+
+            collection.BulkWrite(ops);
+        }
     }
 
 #pragma warning disable CS8618 // Non-nullable field must contain a non-null value when exiting constructor. Consider declaring as nullable.
@@ -50,5 +62,10 @@ namespace Common.Database
         {
             OpenWorld.collection.ReplaceOne(Builders<OpenWorldScheme>.Filter.Eq(x => x.Id, Id), this);
         }
+
+        public WriteModel<OpenWorldScheme> SaveOp()
+        {
+            return new ReplaceOneModel<OpenWorldScheme>(Builders<OpenWorldScheme>.Filter.Eq(x => x.Id, Id), this);
+        }
     }
 }
diff --git a/GameServer/Game/Player.cs b/GameServer/Game/Player.cs
index 27965a6..0aacd6c 100644
--- a/GameServer/Game/Player.cs
+++ b/GameServer/Game/Player.cs
@@ -23,15 +23,8 @@ namespace PemukulPaku.GameServer.Game
         {
             User.Save();
             Equipment.Save();
-
-            foreach (AvatarScheme Avatar in AvatarList)
-            {
-                Avatar.Save();
-            }
-            foreach (OpenWorldScheme OpenWorld in OpenWorlds)
-            {
-                OpenWorld.Save();
-            }
+            Common.Database.Avatar.SaveBulk(AvatarList);
+            OpenWorld.SaveBulk(OpenWorlds);
         }
 
         public void ResetAvatarsTodayGoodfeel()