diff --git a/manifest.json b/manifest.json
index 5163459..013019b 100644
--- a/manifest.json
+++ b/manifest.json
@@ -4,7 +4,7 @@
   "name": "LLOneBot",
   "slug": "LLOneBot",
   "description": "实现 OneBot 11 和 Satori 协议，用于 QQ 机器人开发",
-  "version": "4.0.0",
+  "version": "4.0.1",
   "icon": "./icon.webp",
   "authors": [
     {
diff --git a/src/main/store.ts b/src/main/store.ts
index aa8d7c9..5d20476 100644
--- a/src/main/store.ts
+++ b/src/main/store.ts
@@ -62,9 +62,10 @@ class Store extends Service {
   }
 
   createMsgShortId(peer: Peer, msgId: string): number {
+    // OneBot 11 要求 message_id 为 int32
     const cacheKey = `${msgId}|${peer.chatType}|${peer.peerUid}`
     const hash = createHash('md5').update(cacheKey).digest()
-    hash[0] &= 0x7f //设置第一个bit为0 保证shortId为正数
+    hash[0] &= 0x7f //保证shortId为正数
     const shortId = hash.readInt32BE()
     this.cache.set(cacheKey, shortId)
     this.ctx.database.upsert('message', [{
diff --git a/src/ntqqapi/api/file.ts b/src/ntqqapi/api/file.ts
index 67f48d9..26c9a55 100644
--- a/src/ntqqapi/api/file.ts
+++ b/src/ntqqapi/api/file.ts
@@ -16,7 +16,7 @@ import path from 'node:path'
 import { existsSync } from 'node:fs'
 import { ReceiveCmdS } from '../hook'
 import { RkeyManager } from '@/ntqqapi/helper/rkey'
-import { OnRichMediaDownloadCompleteParams, Peer } from '@/ntqqapi/types/msg'
+import { RichMediaDownloadCompleteNotify, Peer } from '@/ntqqapi/types/msg'
 import { calculateFileMD5 } from '@/common/utils/file'
 import { copyFile, stat, unlink } from 'node:fs/promises'
 import { Time } from 'cosmokit'
@@ -113,7 +113,7 @@ export class NTQQFileApi extends Service {
         return sourcePath
       }
     }
-    const data = await invoke<{ notifyInfo: OnRichMediaDownloadCompleteParams }>(
+    const data = await invoke<{ notifyInfo: RichMediaDownloadCompleteNotify }>(
       'nodeIKernelMsgService/downloadRichMedia',
       [{
         getReq: {
@@ -185,7 +185,7 @@ export class NTQQFileApi extends Service {
   }
 
   async downloadFileForModelId(peer: Peer, fileModelId: string, timeout = 2 * Time.minute) {
-    const data = await invoke<{ notifyInfo: OnRichMediaDownloadCompleteParams }>(
+    const data = await invoke<{ notifyInfo: RichMediaDownloadCompleteNotify }>(
       'nodeIKernelRichMediaService/downloadFileForModelId',
       [{
         peer,
diff --git a/src/ntqqapi/api/friend.ts b/src/ntqqapi/api/friend.ts
index 75b1709..2206325 100644
--- a/src/ntqqapi/api/friend.ts
+++ b/src/ntqqapi/api/friend.ts
@@ -116,4 +116,14 @@ export class NTQQFriendApi extends Service {
       remarkParams: { uid, remark }
     }])
   }
+
+  async delBuddy(friendUid: string) {
+    return await invoke('nodeIKernelBuddyService/delBuddy', [{
+      delInfo: {
+        friendUid,
+        tempBlock: false,
+        tempBothDel: true
+      }
+    }])
+  }
 }
diff --git a/src/ntqqapi/api/msg.ts b/src/ntqqapi/api/msg.ts
index 9af3862..8e9b568 100644
--- a/src/ntqqapi/api/msg.ts
+++ b/src/ntqqapi/api/msg.ts
@@ -37,6 +37,7 @@ export class NTQQMsgApi extends Service {
   }
 
   async activateChatAndGetHistory(peer: Peer, cnt: number) {
+    // 消息从旧到新
     return await invoke(NTMethod.ACTIVE_CHAT_HISTORY, [{ peer, cnt, msgId: '0', queryOrder: true }])
   }
 
diff --git a/src/ntqqapi/core.ts b/src/ntqqapi/core.ts
index 7f0e0be..2e78049 100644
--- a/src/ntqqapi/core.ts
+++ b/src/ntqqapi/core.ts
@@ -124,10 +124,15 @@ class Core extends Service {
           activatedPeerUids.push(contact.id)
           const peer = { peerUid: contact.id, chatType: contact.chatType }
           if (contact.chatType === ChatType.TempC2CFromGroup) {
-            this.ctx.ntMsgApi.activateChatAndGetHistory(peer, 1).then(res => {
-              const lastTempMsg = res.msgList[0]
-              if (Date.now() / 1000 - Number(lastTempMsg?.msgTime) < 5) {
-                this.ctx.parallel('nt/message-created', lastTempMsg!)
+            this.ctx.ntMsgApi.activateChatAndGetHistory(peer, 2).then(res => {
+              for (const msg of res.msgList) {
+                if (Date.now() / 1000 - Number(msg.msgTime) > 3) {
+                  continue
+                }
+                if (msg.senderUin && msg.senderUin !== '0') {
+                  this.ctx.store.addMsgCache(msg)
+                }
+                this.ctx.parallel('nt/message-created', msg)
               }
             })
           } else {
diff --git a/src/ntqqapi/types/msg.ts b/src/ntqqapi/types/msg.ts
index bb643fc..988b038 100644
--- a/src/ntqqapi/types/msg.ts
+++ b/src/ntqqapi/types/msg.ts
@@ -476,7 +476,7 @@ export interface MessageElement {
   actionBarElement?: unknown
 }
 
-export interface OnRichMediaDownloadCompleteParams {
+export interface RichMediaDownloadCompleteNotify {
   fileModelId: string
   msgElementId: string
   msgId: string
diff --git a/src/onebot11/action/go-cqhttp/DeleteFriend.ts b/src/onebot11/action/go-cqhttp/DeleteFriend.ts
new file mode 100644
index 0000000..5541ad1
--- /dev/null
+++ b/src/onebot11/action/go-cqhttp/DeleteFriend.ts
@@ -0,0 +1,21 @@
+import { BaseAction, Schema } from '../BaseAction'
+import { ActionName } from '../types'
+
+interface Payload {
+  user_id: number | string
+}
+
+export class DeleteFriend extends BaseAction<Payload, null> {
+  actionName = ActionName.GoCQHTTP_DeleteFriend
+  payloadSchema = Schema.object({
+    user_id: Schema.union([Number, String]).required()
+  })
+
+  protected async _handle(payload: Payload) {
+    const uin = payload.user_id.toString()
+    const uid = await this.ctx.ntUserApi.getUidByUin(uin)
+    if (!uid) throw new Error('无法获取用户信息')
+    await this.ctx.ntFriendApi.delBuddy(uid)
+    return null
+  }
+}
diff --git a/src/onebot11/action/index.ts b/src/onebot11/action/index.ts
index a439a2c..4558006 100644
--- a/src/onebot11/action/index.ts
+++ b/src/onebot11/action/index.ts
@@ -72,6 +72,7 @@ import { UploadPrivateFile } from './go-cqhttp/UploadPrivateFile'
 import { GetGroupFileUrl } from './go-cqhttp/GetGroupFileUrl'
 import { GetGroupNotice } from './go-cqhttp/GetGroupNotice'
 import { GetRobotUinRange } from './llonebot/GetRobotUinRange'
+import { DeleteFriend } from './go-cqhttp/DeleteFriend'
 
 export function initActionMap(adapter: Adapter) {
   const actionHandlers = [
@@ -149,6 +150,7 @@ export function initActionMap(adapter: Adapter) {
     new GetGroupFilesByFolder(adapter),
     new GetGroupFileUrl(adapter),
     new GetGroupNotice(adapter),
+    new DeleteFriend(adapter),
   ]
   const actionMap = new Map<string, BaseAction<any, unknown>>()
   for (const action of actionHandlers) {
diff --git a/src/onebot11/action/types.ts b/src/onebot11/action/types.ts
index 7b9edb6..de10996 100644
--- a/src/onebot11/action/types.ts
+++ b/src/onebot11/action/types.ts
@@ -85,4 +85,5 @@ export enum ActionName {
   GoCQHTTP_GetGroupFilesByFolder = 'get_group_files_by_folder',
   GoCQHTTP_GetGroupFileUrl = 'get_group_file_url',
   GoCQHTTP_GetGroupNotice = '_get_group_notice',
+  GoCQHTTP_DeleteFriend = 'delete_friend',
 }
diff --git a/src/satori/utils.ts b/src/satori/utils.ts
index 484a8c3..a64cee4 100644
--- a/src/satori/utils.ts
+++ b/src/satori/utils.ts
@@ -33,13 +33,6 @@ function decodeMessageUser(data: NT.RawMessage) {
   }
 }
 
-function decodeMessageMember(user: Universal.User, data: NT.RawMessage) {
-  return {
-    user: user,
-    nick: data.sendMemberName || data.sendNickName
-  }
-}
-
 async function decodeElement(ctx: Context, data: NT.RawMessage, quoted = false) {
   const buffer: h[] = []
   for (const v of data.elements) {
@@ -169,12 +162,22 @@ export async function decodeMessage(
     message.user.nick = info.remark || info.nick
   }
   if (guildId) {
+    let nick = data.sendMemberName || data.sendNickName
+    if (!data.sendNickName) {
+      const info = await ctx.ntGroupApi.getGroupMember(guildId, data.senderUid)
+      message.user.name = info.nick
+      message.user.nick = info.remark || info.nick
+      nick = info.cardName || info.nick
+    }
     message.guild = {
       id: guildId,
       name: data.peerName,
       avatar: `https://p.qlogo.cn/gh/${guildId}/${guildId}/640`
     }
-    message.member = decodeMessageMember(message.user, data)
+    message.member = {
+      user: message.user,
+      nick
+    }
   }
 
   return message
diff --git a/src/version.ts b/src/version.ts
index 91acebf..270a9db 100644
--- a/src/version.ts
+++ b/src/version.ts
@@ -1 +1 @@
-export const version = '4.0.0'
+export const version = '4.0.1'