diff --git a/manager/event_manager/event2d.gd b/manager/event_manager/event2d.gd
index 7c64306f..99eae62d 100644
--- a/manager/event_manager/event2d.gd
+++ b/manager/event_manager/event2d.gd
@@ -62,7 +62,7 @@ func _ready() -> void:
 	if pre_event_name != "":
 		prev_stage = EventManager.get_stage(pre_event_name)
 	refresh_visibility()
-	SceneManager.ground_ready.connect(_on_ground_ready)
+	SceneManager.ground_ready.connect(_on_ground_ready, CONNECT_ONE_SHOT)
 	EventManager.stage_updated.connect(_on_global_stage_updated)
 
 
diff --git a/manager/scene/scene_manager.gd b/manager/scene/scene_manager.gd
index df627830..e4cb51c3 100644
--- a/manager/scene/scene_manager.gd
+++ b/manager/scene/scene_manager.gd
@@ -8,6 +8,7 @@ enum VIBE {
 }
 
 # 从 ground loader 控制该信号
+# 建议使用 CONNECT_ONE_SHOT 来连接 ground ready 与 start 等信号
 @warning_ignore("unused_signal")
 signal ground_ready(ground: Ground2D)
 @warning_ignore("unused_signal")