diff --git a/server/gameserver/creature.cc b/server/gameserver/creature.cc
index 859e77f..adecbfe 100644
--- a/server/gameserver/creature.cc
+++ b/server/gameserver/creature.cc
@@ -1563,3 +1563,8 @@ bool Creature::FreezeOperate()
     }
     return freeze;
 }
+
+void Creature::SlaveOnRemove(Entity* slave)
+{
+
+}
diff --git a/server/gameserver/creature.h b/server/gameserver/creature.h
index ef634d5..2acb29e 100644
--- a/server/gameserver/creature.h
+++ b/server/gameserver/creature.h
@@ -27,6 +27,7 @@ struct xtimer_list;
 class Skill;
 class Obstacle;
 class RoomObstacle;
+class Hero;
 class Creature : public MoveableEntity
 {
  public:
@@ -148,6 +149,7 @@ class Creature : public MoveableEntity
     void ResetAllSkillCd();
     void UpdateSkill();
     bool FreezeOperate();
+    void SlaveOnRemove(Entity* slave);
 
 private:
 
@@ -181,6 +183,8 @@ private:
     std::array<float, kHAT_End> buff_attr_rate_ = {};
     std::array<Buff*, kBET_End> buff_effect_ = {};
     std::list<Buff> buff_list_;
+    std::list<Hero*> slave_heros_;
+    std::list<RoomObstacle*> slave_things_;
 
     a8::Vec2 skill_dir_;
     float skill_param1 = 0;