diff --git a/server/gameserver/buff/callfunc.cc b/server/gameserver/buff/callfunc.cc
index 80cd43fc..cf5f0efc 100644
--- a/server/gameserver/buff/callfunc.cc
+++ b/server/gameserver/buff/callfunc.cc
@@ -81,6 +81,12 @@ void CallFuncBuff::Activate()
             ProcAddHp();
         }
         break;
+    case BuffCallFunc_e::kAddMaxHp:
+        {
+            hold_param2_ = meta->GetBuffParam2(this);
+            ProcAddMaxHp();
+        }
+        break;
     case BuffCallFunc_e::kFlashMoveToPos:
         {
             hold_param2_ = meta->GetBuffParam2(this);
@@ -847,3 +853,10 @@ void CallFuncBuff::DecSkillCd()
         skill->Accelerate(-dec_time);
     }
 }
+
+void CallFuncBuff::ProcAddMaxHp()
+{
+    if (!owner->dead && !owner->downed) {
+        owner->SetMaxHP(owner->GetMaxHP() + hold_param2_);
+    }
+}
diff --git a/server/gameserver/buff/callfunc.h b/server/gameserver/buff/callfunc.h
index 98700fe5..ae3ecbf3 100644
--- a/server/gameserver/buff/callfunc.h
+++ b/server/gameserver/buff/callfunc.h
@@ -25,7 +25,8 @@ A8_DECLARE_CLASS_ENUM(BuffCallFunc_e, int,
                       kSummonObstacleSpecDistance = 25,
                       kClearSummonObstacle = 26,
                       kDecSkillCd = 27,
-                      kRefreshHp = 28
+                      kRefreshHp = 28,
+                      kAddMaxHp = 29,
                       );
 
 
@@ -44,6 +45,7 @@ class CallFuncBuff : public Buff
     void ProcFlashMove();
     void ProcAddEnergyShield();
     void ProcAddHp();
+    void ProcAddMaxHp();
     void ProcFlashMoveToPos();
     void ProcLightCircle();
     void ProcSyncProp();
diff --git a/server/gameserver/lispenv.cc b/server/gameserver/lispenv.cc
index b149bf78..e728d280 100644
--- a/server/gameserver/lispenv.cc
+++ b/server/gameserver/lispenv.cc
@@ -99,6 +99,14 @@ public:
                  double result = context_.buff->owner->GetMaxHP();
                  return std::make_shared<a8::lisp::Value>(a8::lisp::Atom(result));
              });
+        RegisterCProc
+            (
+             "myself.get_init_max_hp",
+             [this] (const a8::lisp::List& params) -> std::shared_ptr<a8::lisp::Value>
+             {
+                 double result = context_.buff->owner->GetBattleContext()->GetMaxHP();
+                 return std::make_shared<a8::lisp::Value>(a8::lisp::Atom(result));
+             });
         RegisterCProc
             (
              "caster.get_hero_atk",