diff --git a/MMOTestServer/MMOserver/Api/RestApi.cs b/MMOTestServer/MMOserver/Api/RestApi.cs
index 4de9bfa..7c418ec 100644
--- a/MMOTestServer/MMOserver/Api/RestApi.cs
+++ b/MMOTestServer/MMOserver/Api/RestApi.cs
@@ -98,7 +98,10 @@ public class RestApi : Singleton<RestApi>
                 response.EnsureSuccessStatusCode();
 
                 BossRaidAccessResponse? raw = await response.Content.ReadFromJsonAsync<BossRaidAccessResponse>();
-                if (raw == null) return null;
+                if (raw == null)
+                {
+                    return null;
+                }
 
                 // API 응답 → 도메인 모델 매핑
                 return new BossRaidResult
diff --git a/MMOTestServer/MMOserver/Game/GameServer.cs b/MMOTestServer/MMOserver/Game/GameServer.cs
index d920875..4318702 100644
--- a/MMOTestServer/MMOserver/Game/GameServer.cs
+++ b/MMOTestServer/MMOserver/Game/GameServer.cs
@@ -1079,7 +1079,7 @@ public class GameServer : ServerBase
         BossRaidResult? result = await RestApi.Instance.BossRaidAccesssAsync(userNames, 1);
 
         // 입장 실패
-        if (result != null)
+        if (result == null || result.BossId <= 0)
         {
             SendTo(peer,
                 PacketSerializer.Serialize((ushort)PacketCode.INTO_BOSS_RAID,
@@ -1142,13 +1142,13 @@ public class GameServer : ServerBase
             }
 
             SendTo(memberPeer, PacketSerializer.Serialize((ushort)PacketCode.CHANGE_MAP, response));
-        }
 
-        // 파티장에게 입장 성공 응답 (할당된 실제 레이드 맵 ID 전달)
-        SendTo(peer,
-            PacketSerializer.Serialize((ushort)PacketCode.INTO_BOSS_RAID,
-                new IntoBossRaidPacket
-                    { RaidId = assignedRaidMapId, IsSuccess = true, Session = result.SessionName, Token = result.Tokens }));
+            // 모두에게 레이드로 이동 (할당된 실제 레이드 맵 ID 전달)
+            SendTo(peer,
+                PacketSerializer.Serialize((ushort)PacketCode.INTO_BOSS_RAID,
+                    new IntoBossRaidPacket
+                        { RaidId = assignedRaidMapId, IsSuccess = true, Session = result.SessionName, Token = result.Tokens }));
+        }
 
         Log.Debug("[GameServer] INTO_BOSS_RAID HashKey={Key} PartyId={PartyId} AssignedRaidMapId={RaidId}", hashKey, party.PartyId,
             assignedRaidMapId);