diff --git a/Common/Data/Config/Scene/GroupInfo.cs b/Common/Data/Config/Scene/GroupInfo.cs
index 9419462f..9a41460c 100644
--- a/Common/Data/Config/Scene/GroupInfo.cs
+++ b/Common/Data/Config/Scene/GroupInfo.cs
@@ -26,6 +26,7 @@ public class GroupInfo
     public bool LoadOnInitial { get; set; }
     public string GroupName { get; set; } = "";
     public SavedValueLoadCondition SavedValueCondition { get; set; } = new();
+    public AtmosphereCondition AtmosphereCondition { get; set; } = new();
     public LoadCondition LoadCondition { get; set; } = new();
     public LoadCondition UnloadCondition { get; set; } = new();
     public LoadCondition ForceUnloadCondition { get; set; } = new();
@@ -46,6 +47,7 @@ public class GroupInfo
     [JsonIgnore] public Dictionary<string, List<int>> PropTriggerCustomString { get; set; } = [];
     [JsonIgnore] public List<string> ControlFloorSavedValue { get; set; } = [];
     [JsonIgnore] public List<int> RelatedBattleId { get; set; } = [];
+    [JsonIgnore] public List<int> RelatedMissionId { get; set; } = [];
 
     public void Load()
     {
@@ -84,9 +86,28 @@ public class GroupInfo
                 }
             }
         }
+
+        if (LoadSide != GroupLoadSideEnum.Client) return;
+        foreach (var info in AtmosphereCondition.Conditions)
+        {
+            if (info.TryGetValue("SubMissionID", out var value) && value is long v)
+            {
+                // try cast to int
+                var missionId = (int)v;
+                RelatedMissionId.Add(missionId);
+            }
+        }
     }
 }
 
+public class AtmosphereCondition
+{
+    public List<Dictionary<string, object>> Conditions { get; set; } = [];
+    
+    [JsonConverter(typeof(StringEnumConverter))]
+    public OperationEnum Operation { get; set; } = OperationEnum.And;
+}
+
 public class LoadCondition
 {
     public List<Condition> Conditions { get; set; } = [];
diff --git a/GameServer/Game/Mission/MissionManager.cs b/GameServer/Game/Mission/MissionManager.cs
index fe217aeb..53519418 100644
--- a/GameServer/Game/Mission/MissionManager.cs
+++ b/GameServer/Game/Mission/MissionManager.cs
@@ -641,10 +641,16 @@ public class MissionManager(PlayerInstance player) : BasePlayerManager(player)
 
     public void OnLoadScene(SceneInfo info)
     {
+        var targetSubIds =
+            Player.SceneInstance?.FloorInfo?.Groups.Values.SelectMany(x => x.RelatedMissionId).ToList() ?? [];
+
+        HashSet<int> mainIds = [];
         foreach (var mainMission in GameData.MainMissionData.Values)
         {
-            foreach (var subMission in mainMission.MissionInfo?.SubMissionList ?? [])
-                if (subMission.LevelFloorID == info.FloorId)
+            foreach (var subMission in mainMission.MissionInfo.SubMissionList)
+            {
+                if (targetSubIds.Contains(subMission.ID))
+                {
                     info.SceneMissionInfo.SubMissionStatusList.Add(new Proto.Mission
                     {
                         Id = (uint)subMission.ID,
@@ -652,15 +658,17 @@ public class MissionManager(PlayerInstance player) : BasePlayerManager(player)
                         Progress = (uint)GetMissionProgress(subMission.ID)
                     });
 
-            foreach (var subMission in mainMission.MissionInfo?.SubMissionList ?? [])
-                if (subMission.LevelFloorID == info.FloorId)
-                {
-                    if (GetMainMissionStatus(mainMission.MainMissionID) == MissionPhaseEnum.Finish)
-                        info.SceneMissionInfo.FinishedMainMissionIdList.Add((uint)mainMission.MainMissionID);
-                    else if (GetMainMissionStatus(mainMission.MainMissionID) == MissionPhaseEnum.Accept)
-                        info.SceneMissionInfo.UnfinishedMainMissionIdList.Add((uint)mainMission.MainMissionID);
-                    break; // only one
+                    mainIds.Add(mainMission.MainMissionID);
                 }
+            }
+        }
+
+        foreach (var mainId in mainIds)
+        {
+            if (GetMainMissionStatus(mainId) == MissionPhaseEnum.Finish)
+                info.SceneMissionInfo.FinishedMainMissionIdList.Add((uint)mainId);
+            else if (GetMainMissionStatus(mainId) == MissionPhaseEnum.Accept)
+                info.SceneMissionInfo.UnfinishedMainMissionIdList.Add((uint)mainId);
         }
     }
 
diff --git a/GameServer/Game/Scene/SceneEntityLoader.cs b/GameServer/Game/Scene/SceneEntityLoader.cs
index a1b22beb..5af4d089 100644
--- a/GameServer/Game/Scene/SceneEntityLoader.cs
+++ b/GameServer/Game/Scene/SceneEntityLoader.cs
@@ -175,6 +175,8 @@ public class SceneEntityLoader(SceneInstance scene)
                 x.FinishType == MissionFinishTypeEnum.StageWin && info.RelatedBattleId.Contains(x.ParamInt1)))
             return null;  // mission not activated
 
+        // TODO atmosphere conditions
+
         // load
         Scene.Groups.Add(info.Id); // add group to loaded groups