diff --git a/konabot/plugins/kona_ph/__init__.py b/konabot/plugins/kona_ph/__init__.py
index f1ea8ec..99a1bfc 100644
--- a/konabot/plugins/kona_ph/__init__.py
+++ b/konabot/plugins/kona_ph/__init__.py
@@ -2,7 +2,8 @@ from functools import reduce
 from math import ceil
 import re
 from loguru import logger
-from nonebot_plugin_alconna import Alconna, Args, UniMessage, on_alconna
+from nonebot import on_message
+from nonebot_plugin_alconna import Alconna, Args, UniMessage, UniMsg, on_alconna
 from konabot.common.nb.qq_broadcast import qq_broadcast
 from konabot.common.username import get_username
 from konabot.plugins.kona_ph.core.storage import get_today_date
@@ -23,16 +24,29 @@ async def is_play_group(target: DepLongTaskTarget):
     return False
 
 
-cmd_submit = on_alconna(Alconna(
-    "re:提交(?:答案|题解|[fF]lag)",
-    Args["flag", str],
-), rule=is_play_group)
+# cmd_submit = on_alconna(Alconna(
+#     "re:提交(?:答案|题解|[fF]lag)",
+#     Args["flag", str],
+# ), rule=is_play_group)
+#
+# @cmd_submit.handle()
+# async def _(flag: str, target: DepLongTaskTarget):
+#     async with puzzle_manager() as manager:
+#         result = manager.submit(target.target_id, flag)
+#         await target.send_message(result.get_unimessage())
+
+
+cmd_submit = on_message(rule=is_play_group)
+
 
 @cmd_submit.handle()
-async def _(flag: str, target: DepLongTaskTarget):
-    async with puzzle_manager() as manager:
-        result = manager.submit(target.target_id, flag)
-        await target.send_message(result.get_unimessage())
+async def _(msg: UniMsg, target: DepLongTaskTarget):
+    txt = msg.extract_plain_text().strip()
+    if match := re.match(r"^提交(?:答案|题解|[fF]lag)\s*(?P<submission>.+?)\s*$", txt):
+        submission: str = match.group("submission")
+        async with puzzle_manager() as manager:
+            result = manager.submit(target.target_id, submission)
+            await target.send_message(result.get_unimessage())
 
 
 cmd_query = on_alconna(Alconna(
diff --git a/konabot/plugins/kona_ph/manager.py b/konabot/plugins/kona_ph/manager.py
index a284675..60425ba 100644
--- a/konabot/plugins/kona_ph/manager.py
+++ b/konabot/plugins/kona_ph/manager.py
@@ -305,7 +305,11 @@ def create_admin_commands():
             if description is not None:
                 p.content = description
             if flag is not None:
-                p.flag = flag
+                p.flag = flag.strip()
+                if flag.strip() != flag:
+                    await target.send_message(
+                        "⚠️ 注意：你输入的 Flag 含有开头或结尾的空格，已经帮你去除"
+                    )
             if image is not None and image.url is not None:
                 b = await download_image_bytes(image.url)
                 p.add_image(b.unwrap())