diff --git a/docs/usage/basic_command.md b/docs/usage/basic_command.md
index b6a1d799..e8e56763 100644
--- a/docs/usage/basic_command.md
+++ b/docs/usage/basic_command.md
@@ -52,6 +52,9 @@ npm enable-global/disable-global <plugin_name>  # 全局启用/停用插件
 # 群聊仅群主、管理员、超级用户可用，私聊所有人可用
 npm enable/disable <plugin_name>  # 当前会话启用/停用插件
 npm list [page] [num] # 列出所有插件 page为页数，num为每页显示数量
+
+# 所有人
+help <plugin_name>  # 查看插件帮助
 ```
 
 - 资源包管理
@@ -71,6 +74,7 @@ rpm reload # 重载所有资源包
 npm 插件管理 | update 更新 | install 安装 | uninstall 卸载 | search 搜索
 enable 启用 | disable 停用 | enable-global 全局启用 | disable-global 全局停用
 rpm 资源包 | load 加载 | unload 卸载 | change 更改 | reload 重载 | list 列表
+help 帮助
 ```
 
 > [!warning]
@@ -93,5 +97,5 @@ profile 个人信息 | set 设置 | get 查询
 
 > [!tip]
 > **参数**：`<param>`为必填参数，`[option]`为可选参数。
-> 
+>
 > **命令别名**：配置了命令别名的命令可以使用别名代替原命令，例如`npm install ~`可以使用`插件 安装 ~`代替。
diff --git a/liteyuki/plugins/liteyuki_user/profile_manager.py b/liteyuki/plugins/liteyuki_user/profile_manager.py
index 8564eeaf..0ce2ed90 100644
--- a/liteyuki/plugins/liteyuki_user/profile_manager.py
+++ b/liteyuki/plugins/liteyuki_user/profile_manager.py
@@ -3,8 +3,8 @@ from typing import Optional
 import pytz
 from nonebot import require
 
-from liteyuki.utils.base.data import LiteModel
-from liteyuki.utils.base.data_manager import User, user_db
+from liteyuki.utils.base.data import LiteModel, Database
+from liteyuki.utils.base.data_manager import User, user_db, group_db
 from liteyuki.utils.base.language import Language, change_user_lang, get_all_lang, get_user_lang
 from liteyuki.utils.base.ly_typing import T_Bot, T_MessageEvent
 from liteyuki.utils.message.message import MarkdownMessage as md
diff --git a/liteyuki/utils/base/data_manager.py b/liteyuki/utils/base/data_manager.py
index 15d559de..77b21a7b 100644
--- a/liteyuki/utils/base/data_manager.py
+++ b/liteyuki/utils/base/data_manager.py
@@ -2,14 +2,14 @@ import os
 
 from pydantic import Field
 
-from .data import LiteModel, Database as DB
+from .data import Database, LiteModel, Database
 
 DATA_PATH = "data/liteyuki"
 
-user_db = DB(os.path.join(DATA_PATH, "users.ldb"))
-group_db = DB(os.path.join(DATA_PATH, "groups.ldb"))
-plugin_db = DB(os.path.join(DATA_PATH, "plugins.ldb"))
-common_db = DB(os.path.join(DATA_PATH, "common.ldb"))
+user_db = Database(os.path.join(DATA_PATH, "users.ldb"))
+group_db = Database(os.path.join(DATA_PATH, "groups.ldb"))
+plugin_db = Database(os.path.join(DATA_PATH, "plugins.ldb"))
+common_db = Database(os.path.join(DATA_PATH, "common.ldb"))
 
 
 class User(LiteModel):
diff --git a/liteyuki/utils/base/language.py b/liteyuki/utils/base/language.py
index 3d933f2d..cf28bd06 100644
--- a/liteyuki/utils/base/language.py
+++ b/liteyuki/utils/base/language.py
@@ -149,7 +149,7 @@ def change_user_lang(user_id: str, lang_code: str):
     """
     user = user_db.first(User(), "user_id = ?", user_id, default=User(user_id=user_id))
     user.profile["lang"] = lang_code
-    user_db.upsert(user, "user_id = ?", user_id)
+    user_db.upsert(user)
     _user_lang[user_id] = lang_code