diff --git a/readme.md b/readme.md
index 6ea0874a..4ab95a55 100644
--- a/readme.md
+++ b/readme.md
@@ -1,5 +1,5 @@
 <div align="center">
-    <img src="docs/img/snowy.png" style="width: 30%; margin-top:10%;">
+    <img src="https://nya.liteyuki.icu:809/static/img/liteyuki_icon.png" style="width: 30%; margin-top:10%;">
 </div>
 <div align=center>
     <h2>
@@ -15,7 +15,7 @@
 
 - 基于[Nonebot2]("https://github.com/nonebot/nonebot2")，有良好的生态支持
 - 集成了上一代轻雪的优点和~~缺点~~
-- 支持QQ/Telegram/Github通信，后续会支持更多的平台
+- 支持Telegram/Github通信，后续会支持更多的平台
 
 ## 手动安装和部署
 
diff --git a/src/liteyuki_main/__init__.py b/src/liteyuki_main/__init__.py
index 7388d31f..dd6481a2 100644
--- a/src/liteyuki_main/__init__.py
+++ b/src/liteyuki_main/__init__.py
@@ -48,22 +48,11 @@ async def _(bot: Bot, event: MessageEvent, arg: Message = CommandArg(), ):
             logger.opt(colors=True).warning(Language().get('log.main.fail_to_reg_su', USER_ID=event.user_id))
 
 
-@echo.handle()
-async def _(bot: Bot, event: MessageEvent, arg: Message = CommandArg(), ):
-    await echo.send(arg)
-
 
 @su_test.handle()
 async def _():
     await su_test.send('suc')
 
-
-@ban.handle()
-async def _(bot: Bot, event: MessageEvent, arg: Message = CommandArg(), ):
-    await bot.call_api('set_group_ban', group_id=event.group_id, user_id=int(arg), duration=60 * 60 * 24 * 365 * 10)
-    await ban.send('suc')
-
-
 def decode_text(text: str):
     # input a string, output a string
     # transfer cqcode to text