diff --git a/libs/events/security.py b/libs/events/security.py
index 1246b8a..0a7cff5 100644
--- a/libs/events/security.py
+++ b/libs/events/security.py
@@ -57,8 +57,7 @@ class Yuuki_Security:
                             self.Yuuki_DynamicTools.changeGroupUrlStatus, (GroupInfo, False))
                         self.Yuuki.threadExec(self.Yuuki_DynamicTools.sendText, (GroupID, self.Yuuki.get_text(
                             "DO NOT ENABLE THE GROUP URL STATUS, see you...")))
-                        Kicker = self.Yuuki_DynamicTools.kickSomeone(
-                            GroupInfo, Action)
+                        Kicker = self.Yuuki_DynamicTools.modifyGroupMemberList(1, GroupInfo, Action)
                         # Log
                         self.Yuuki.data.updateLog("KickEvent", (
                             self.Yuuki.data.getTime(), GroupInfo.name, GroupID, Kicker, Action, Another, ncMessage.type))
@@ -68,11 +67,9 @@ class Yuuki_Security:
                     for userId in Another.split("\x1e"):
                         if userId not in self.Yuuki.AllAccountIds + GroupPrivilege:
                             if GroupInfo.invitee and userId in [user.mid for user in GroupInfo.invitee]:
-                                Canceler = self.Yuuki_DynamicTools.cancelSomeone(
-                                    GroupInfo, userId)
+                                Canceler = self.Yuuki_DynamicTools.modifyGroupMemberList(2, GroupInfo, userId)
                             else:
-                                Canceler = self.Yuuki_DynamicTools.kickSomeone(
-                                    GroupInfo, userId)
+                                Canceler = self.Yuuki_DynamicTools.modifyGroupMemberList(1, GroupInfo, userId)
                                 # Log
                                 self.Yuuki.data.updateLog("KickEvent", (
                                     self.Yuuki.data.getTime(), GroupInfo.name, GroupID, Canceler, Action, userId,
@@ -82,11 +79,9 @@ class Yuuki_Security:
                         self.Yuuki.data.getTime(), GroupInfo.name, GroupID, Canceler, Action, Another.replace("\x1e", ",")))
                 elif Another not in self.Yuuki.AllAccountIds + GroupPrivilege:
                     if GroupInfo.invitee and Another in [user.mid for user in GroupInfo.invitee]:
-                        Canceler = self.Yuuki_DynamicTools.cancelSomeone(
-                            GroupInfo, Another)
+                        Canceler = self.Yuuki_DynamicTools.modifyGroupMemberList(2, GroupInfo, Another)
                     else:
-                        Canceler = self.Yuuki_DynamicTools.kickSomeone(
-                            GroupInfo, Another)
+                        Canceler = self.Yuuki_DynamicTools.modifyGroupMemberList(1, GroupInfo, Another)
                         # Log
                         self.Yuuki.data.updateLog("KickEvent", (
                             self.Yuuki.data.getTime(), GroupInfo.name, GroupID, Canceler, Action, Another,
@@ -102,8 +97,7 @@ class Yuuki_Security:
                     if userId == Action:
                         self.Yuuki.threadExec(self.Yuuki_DynamicTools.sendText, (GroupID, self.Yuuki.get_text(
                             "You are our blacklist. Bye~")))
-                        Kicker = self.Yuuki_DynamicTools.kickSomeone(
-                            GroupInfo, Action)
+                        Kicker = self.Yuuki_DynamicTools.modifyGroupMemberList(1, GroupInfo, Action)
                         # Log
                         self.Yuuki.data.updateLog("KickEvent", (
                             self.Yuuki.data.getTime(), GroupInfo.name, GroupID, Kicker, Kicker, Action, ncMessage.type))
@@ -115,8 +109,7 @@ class Yuuki_Security:
                 elif Another in self.Yuuki.AllAccountIds:
                     Kicker = "None"
                     try:
-                        Kicker = self.Yuuki_DynamicTools.kickSomeone(
-                            GroupInfo, Action, Another)
+                        Kicker = self.Yuuki_DynamicTools.modifyGroupMemberList(1, GroupInfo, Action, Another)
                         # Log
                         self.Yuuki.data.updateLog("KickEvent", (
                             self.Yuuki.data.getTime(), GroupInfo.name, GroupID, Kicker, Action, Another,
@@ -173,8 +166,7 @@ class Yuuki_Security:
                 elif Security_Access:
                     self.Yuuki.threadExec(self.Yuuki_DynamicTools.sendText, (
                         GroupID, self.Yuuki.get_text("DO NOT KICK, thank you ^^")))
-                    Kicker = self.Yuuki_DynamicTools.kickSomeone(
-                        GroupInfo, Action)
+                    Kicker = self.Yuuki_DynamicTools.modifyGroupMemberList(1, GroupInfo, Action)
                     # Log
                     self.Yuuki.data.updateLog("KickEvent", (
                         self.Yuuki.data.getTime(), GroupInfo.name, GroupID, Kicker, Action, Another, ncMessage.type))
diff --git a/libs/tools.py b/libs/tools.py
index 630f2f0..7ead06e 100644
--- a/libs/tools.py
+++ b/libs/tools.py
@@ -249,12 +249,39 @@ class Yuuki_DynamicTools:
     def modifyGroupMemberList(self, action, groupInfo, userId, exceptUserId=None):
         """
         Modify LINE Group Member List
-        :param action: 1->kick 2->cancel
+        :param action: integer (1->kick 2->cancel)
         :param groupInfo: LINE Group
         :param userId: string
         :param exceptUserId: List of userId
         :return: string
         """
+        actions = {1: "KickLimit", 2: "CancelLimit"}
+        assert action in actions, "Invalid action code"
+        if len(self.Yuuki.Connect.helper) >= 1:
+            members = [member.mid for member in groupInfo.members if member.mid in self.Yuuki.AllAccountIds]
+            accounts = self.Yuuki_StaticTools.dictShuffle(
+                self.Yuuki.data.getData(["LimitInfo", actions[action]]), members)
+            if len(accounts) == 0:
+                return "None"
+            if exceptUserId:
+                accounts[exceptUserId] = -1
+            helper = max(accounts, key=accounts.get)
+        else:
+            if exceptUserId == self.Yuuki.MyMID:
+                return "None"
+            helper = self.Yuuki.MyMID
+
+        actions_func = {
+            1: self.getClient(helper).cancelGroupInvitation,
+            2: self.getClient(helper).cancelGroupInvitation
+        }
+        Limit = self.Yuuki.data.getData(["LimitInfo", actions[action], helper])
+        if Limit > 0:
+            actions_func[action](self.Yuuki.Seq, groupInfo.id, [userId])
+            self.Yuuki.data.limitDecrease(actions[action], helper)
+        else:
+            self.sendText(groupInfo.id, self.Yuuki.get_text("Cancel Limit."))
+        return helper
 
     def sendText(self, send_to, msg):
         """