diff --git a/src/main/kotlin/cn/rtast/fancybot/Const.kt b/src/main/kotlin/cn/rtast/fancybot/Const.kt
index 8c29abd..0319afb 100644
--- a/src/main/kotlin/cn/rtast/fancybot/Const.kt
+++ b/src/main/kotlin/cn/rtast/fancybot/Const.kt
@@ -24,7 +24,8 @@ val DEFAULT_CONFIG = Config(
     wsAddress = "ws://127.0.0.1",
     wsType = WSType.Client,
     accessToken = "114514",
-    port = 6760
+    port = 6760,
+    listeningGroups = listOf(114514, 1919810)
 )
 
 val ADMINS = listOf(
diff --git a/src/main/kotlin/cn/rtast/fancybot/FancyBot.kt b/src/main/kotlin/cn/rtast/fancybot/FancyBot.kt
index 508b7c8..e427b20 100644
--- a/src/main/kotlin/cn/rtast/fancybot/FancyBot.kt
+++ b/src/main/kotlin/cn/rtast/fancybot/FancyBot.kt
@@ -92,8 +92,9 @@ suspend fun main() {
         val port = configManager.wsPort
         ROneBotFactory.createServer(port, accessToken, fancyBot)
     }
-    val commandManager = rob.commandManager
     initDatabase()
+    val commandManager = rob.commandManager
     commands.forEach { commandManager.register(it) }
     items.forEach { itemManager.register(it) }
+    rob.addListeningGroups(*configManager.listeningGroups.toLongArray())
 }
\ No newline at end of file
diff --git a/src/main/kotlin/cn/rtast/fancybot/commands/RedeemCommand.kt b/src/main/kotlin/cn/rtast/fancybot/commands/RedeemCommand.kt
index 9261a3a..4f1e46e 100644
--- a/src/main/kotlin/cn/rtast/fancybot/commands/RedeemCommand.kt
+++ b/src/main/kotlin/cn/rtast/fancybot/commands/RedeemCommand.kt
@@ -17,6 +17,18 @@ class RedeemCommand : BaseCommand() {
     override val commandNames = listOf("/redeem", "/兑换", "/rdm")
 
     override suspend fun executeGroup(listener: OBMessage, message: GroupMessage, args: List<String>) {
+        if (args.isEmpty()) {
+            val msg = MessageChain.Builder()
+                .addAt(message.sender.userId)
+                .addText("发送 /rdm <物品名称> 即可兑换哦!")
+                .addNewLine()
+                .addText("发送 /rdm list 即可查看所有可兑换的物品~")
+                .addNewLine()
+                .addText("发送 /mp 可以查看自己拥有的点数~")
+                .build()
+            listener.sendGroupMessage(message.groupId, msg)
+            return
+        }
         val status = signManager.getStatus(message.sender.userId)
         if (status == null) {
             val msg = MessageChain.Builder()
@@ -44,7 +56,7 @@ class RedeemCommand : BaseCommand() {
                 .addAt(message.sender.userId)
                 .addText("没有找到你想兑换的东西呢")
                 .addNewLine()
-                .addText("你可以输入/兑换 list来查看所有可兑换的物品")
+                .addText("你可以发送 /rdm list来查看所有可兑换的物品")
                 .build()
             listener.sendGroupMessage(message.groupId, msg)
             return
diff --git a/src/main/kotlin/cn/rtast/fancybot/commands/SignCommand.kt b/src/main/kotlin/cn/rtast/fancybot/commands/SignCommand.kt
index 2fb8822..8628d26 100644
--- a/src/main/kotlin/cn/rtast/fancybot/commands/SignCommand.kt
+++ b/src/main/kotlin/cn/rtast/fancybot/commands/SignCommand.kt
@@ -44,19 +44,21 @@ class MyPointCommand : BaseCommand() {
     override val commandNames = listOf("/我的点数", "/mp")
 
     override suspend fun executeGroup(listener: OBMessage, message: GroupMessage, args: List<String>) {
+        // query target's point
         if (args.isNotEmpty() && (message.sender.role == UserRole.admin || message.sender.userId in ADMINS)) {
             val targetId = args.first().toLong()
             val targetData = signManager.getStatus(targetId)
             val msg = MessageChain.Builder().addAt(message.sender.userId)
 
             if (targetData == null) {
-                msg.addText("用户不存在, 你需要先签到一次才能查询点数呢~")
+                msg.addText("用户不存在, 需要先签到一次才能查询点数呢~")
             } else {
                 msg.addText("用户: ${targetData.id} 的点数有: ${targetData.points}")
             }
             listener.sendGroupMessage(message.groupId, msg.build())
             return
         }
+        // query self point
         val status = signManager.getStatus(message.sender.userId)
         if (status == null) {
             val msg = MessageChain.Builder()
diff --git a/src/main/kotlin/cn/rtast/fancybot/entity/Config.kt b/src/main/kotlin/cn/rtast/fancybot/entity/Config.kt
index bd53419..9462568 100644
--- a/src/main/kotlin/cn/rtast/fancybot/entity/Config.kt
+++ b/src/main/kotlin/cn/rtast/fancybot/entity/Config.kt
@@ -15,4 +15,5 @@ data class Config(
     val wsAddress: String,
     val accessToken: String,
     val port: Int,
+    val listeningGroups: List<Long>
 )
\ No newline at end of file
diff --git a/src/main/kotlin/cn/rtast/fancybot/util/file/ConfigManager.kt b/src/main/kotlin/cn/rtast/fancybot/util/file/ConfigManager.kt
index 91f53df..9ed69bd 100644
--- a/src/main/kotlin/cn/rtast/fancybot/util/file/ConfigManager.kt
+++ b/src/main/kotlin/cn/rtast/fancybot/util/file/ConfigManager.kt
@@ -16,4 +16,5 @@ class ConfigManager : JsonFileHandler<Config>("config.json") {
     val wsPort get() = this.read<Config>().port
     val accessToken get() = this.read<Config>().accessToken
     val wsType get() = this.read<Config>().wsType
+    val listeningGroups get() = this.read<Config>().listeningGroups
 }
\ No newline at end of file
diff --git a/src/main/resources/config.json b/src/main/resources/config.json
index fbc3ecf..6dddf0d 100644
--- a/src/main/resources/config.json
+++ b/src/main/resources/config.json
@@ -3,5 +3,9 @@
   "wsType": "Client",
   "wsAddress": "ws://127.0.0.1",
   "accessToken": "114514",
-  "port": 6760
+  "port": 6760,
+  "listeningGroups": [
+    114514,
+    1919810
+  ]
 }
\ No newline at end of file