diff --git a/arclet/letoderea/__init__.py b/arclet/letoderea/__init__.py
index f64e055..523800a 100644
--- a/arclet/letoderea/__init__.py
+++ b/arclet/letoderea/__init__.py
@@ -6,7 +6,7 @@
 from .entities.publisher import Publisher
 from .entities.decorator import TemplateDecorator
 from .entities.subscriber import Subscriber
-from .utils import Condition_T
+from .utils import Condition_T, search_event, event_class_generator
 
 
 class EventSystem:
@@ -29,17 +29,17 @@ def __init__(
     def event_spread(self, target: Union[TemplateEvent, Dict[str, Any]]):
         if (datetime.now() - self.last_run).total_seconds() >= self.safety_interval:
             try:
-                for pub in self.publisher_generator():
+                for pub in self.publisher_generator(target):
                     if pub.on_event(target):
                         self.loop.create_task(pub.current_executor)
             except asyncio.CancelledError:
                 return
         self.last_run = datetime.now()
 
-    def publisher_generator(self):
+    def publisher_generator(self, current_event):
         return list(
             filter(
-                lambda x: all([condition.judge() for condition in x.external_conditions]),
+                lambda x: all([condition.judge(current_event) for condition in x.external_conditions]),
                 self.publisher_list,
             )
         )
@@ -56,19 +56,6 @@ def get_publisher(self, target: Type[TemplateEvent]):
     def remove_publisher(self, target):
         self.publisher_list.remove(target)
 
-    @staticmethod
-    def event_class_generator(target=TemplateEvent):
-        for i in target.__subclasses__():
-            yield i
-            if i.__subclasses__():
-                yield from EventSystem.event_class_generator(i)
-
-    @staticmethod
-    def search_event(name: str):
-        for i in EventSystem.event_class_generator():
-            if i.__name__ == name:
-                return i
-
     def register(
             self,
             event: Union[str, Type[TemplateEvent]],
@@ -79,9 +66,12 @@ def register(
     ):
         if isinstance(event, str):
             name = event
-            event = self.search_event(event)
+            event = search_event(event)
             if not event:
                 raise Exception(name + " cannot found!")
+
+        events = [event]
+        events.extend(event_class_generator(event))
         conditions = conditions or []
         decorators = decorators or []
 
@@ -92,18 +82,19 @@ def register_wrapper(exec_target):
                     priority=priority,
                     decorators=decorators
                 )
-            may_publishers = self.get_publisher(event)
-            _event_handler = EventDelegate(event=event)
-            _event_handler += exec_target
-            if not may_publishers:
-                self.publisher_list.append(Publisher(conditions, _event_handler))
-            else:
-                for m_publisher in may_publishers:
-                    if m_publisher.equal_conditions(conditions):
-                        m_publisher += _event_handler
-                        break
-                else:
+            for e in events:
+                may_publishers = self.get_publisher(e)
+                _event_handler = EventDelegate(event=e)
+                _event_handler += exec_target
+                if not may_publishers:
                     self.publisher_list.append(Publisher(conditions, _event_handler))
+                else:
+                    for m_publisher in may_publishers:
+                        if m_publisher.equal_conditions(conditions):
+                            m_publisher += _event_handler
+                            break
+                    else:
+                        self.publisher_list.append(Publisher(conditions, _event_handler))
 
             return exec_target