diff --git a/server/api/ApiManager.ts b/server/api/ApiManager.ts
index abc3c52..cfe2715 100644
--- a/server/api/ApiManager.ts
+++ b/server/api/ApiManager.ts
@@ -7,6 +7,7 @@ import EventCallbackFunction from "../typedef/EventCallbackFunction.ts"
 import BaseApi from "./BaseApi.ts"
 import DataWrongError from "./DataWrongError.ts"
 import chalk from "chalk"
+import EventStorer from "./EventStorer.ts";
 
 function stringifyNotIncludeArrayBuffer(value: any) {
     return JSON.stringify(value, (_k, v) => {
@@ -46,7 +47,7 @@ export default class ApiManager {
     }
     static clients: { [key: string]: { [key: string]: SocketIo.Socket<SocketIo.DefaultEventsMap, SocketIo.DefaultEventsMap, SocketIo.DefaultEventsMap, any> } } = {}
     static checkUserIsOnline(userId: string) {
-        return this.getUserClientSockets(userId) != null
+        return this.getUserClientSockets(userId) != null && Object.keys(this.getUserClientSockets(userId)).length > 0
     }
     /**
      * 獲取用戶所有的客戶端表 (格式遵循 設備ID_當前Session)
@@ -79,13 +80,15 @@ export default class ApiManager {
                 else {
                     console.log(chalk.green('[断]') + ` ${ip} disconnected`)
                     delete this.clients[clientInfo.userId][deviceId + '_' + sessionId]
+                    if (Object.keys(this.clients[clientInfo.userId]).length == 0)
+                        EventStorer.getInstanceForUser(clientInfo.userId).clearEvents()
                 }
             })
             console.log(chalk.yellow('[连]') + ` ${ip} connected`)
 
             socket.on("The_White_Silk", async (name: string, args: { [key: string]: unknown }, callback_: (ret: ApiCallbackMessage) => void) => {
                 function callback(ret: ApiCallbackMessage) {
-                    console.log(chalk.blue('[发]') + ` ${ip} <- ${ret.code == 200 ? chalk.green(ret.msg) : chalk.red(ret.msg)} [${ret.code}]${ret.data ? (' <extras: ' + stringifyNotIncludeArrayBuffer(ret.data) + '>') : ''}`)
+                    console.log(chalk.blue('[回]') + ` ${ip} <- ${ret.code == 200 ? chalk.green(ret.msg) : chalk.red(ret.msg)} [${ret.code}]${ret.data ? (' <extras: ' + stringifyNotIncludeArrayBuffer(ret.data) + '>') : ''}`)
                     return callback_(ret)
                 }
                 async function checkIsPromiseAndAwait(value: Promise<unknown> | unknown) {
diff --git a/server/api/BaseApi.ts b/server/api/BaseApi.ts
index 1478a4b..0dac0c0 100644
--- a/server/api/BaseApi.ts
+++ b/server/api/BaseApi.ts
@@ -5,6 +5,8 @@ import User from "../data/User.ts"
 import Token from "./Token.ts"
 import TokenManager from './TokenManager.ts'
 import * as SocketIo from "socket.io"
+import EventStorer from "./EventStorer.ts"
+import chalk from "chalk"
 
 export default abstract class BaseApi {
     abstract getName(): string
@@ -31,18 +33,23 @@ export default abstract class BaseApi {
         if (!name.startsWith(this.getName() + ".")) throw Error("注冊的事件應該與接口集合命名空間相匹配: " + name)
         ApiManager.addEventListener(name, func)
     }
-    emitToClient(client: SocketIo.Socket, name: ClientEvent, args: { [key: string]: unknown }) {
-        client.emit("The_White_Silk", name, args)
+    emitToClient(client: SocketIo.Socket, name: ClientEvent, args: { [key: string]: unknown }, user: User | string, deviceSession: string) {
+        console.log(chalk.magenta('[发]') + ` ${client.handshake.address} <- ${chalk.yellow(name)} ${' <extras: ' + JSON.stringify(args) + '>'}`)
+        client.timeout(5000).emit("The_White_Silk", name, args, (err: Error) => {
+            if (err) EventStorer.getInstanceForUser(user).addEvent(name, args, deviceSession)
+        })
     }
     boardcastToUsers(users: string[], name: ClientEvent, args: { [key: string]: unknown }) {
         for (const user of users) {
             if (ApiManager.checkUserIsOnline(user)) {
                 const sockets = ApiManager.getUserClientSockets(user)
-                for (const socket of Object.keys(sockets))
-                    this.emitToClient(sockets[socket], name, args)
-            } else {
-                // TODO: EventStore
-            }
+                for (const deviceSession of Object.keys(sockets))
+                    if (sockets[deviceSession].connected)
+                        this.emitToClient(sockets[deviceSession], name, args, user, deviceSession)
+                    else
+                        EventStorer.getInstanceForUser(user).addEvent(name, args, deviceSession)
+            } else
+                EventStorer.getInstanceForUser(user).clearEvents()
         }
     }
 }
diff --git a/server/api/EventBean.ts b/server/api/EventBean.ts
index 43d68af..f9e32c5 100644
--- a/server/api/EventBean.ts
+++ b/server/api/EventBean.ts
@@ -1,4 +1,7 @@
+import { ClientEvent } from "./ApiDeclare.ts"
+
 export default class EventBean {
-    declare event_name: string
-    declare data: unknown
+    declare event_name: ClientEvent
+    declare data: { [key: string]: unknown }
+    declare device_session: string
 }
\ No newline at end of file
diff --git a/server/api/EventStorer.ts b/server/api/EventStorer.ts
index cd09077..ea0cccf 100644
--- a/server/api/EventStorer.ts
+++ b/server/api/EventStorer.ts
@@ -2,8 +2,9 @@ import { DatabaseSync } from "node:sqlite"
 import path from 'node:path'
 
 import config from "../config.ts"
-import User from "../data/User.ts";
-import EventBean from "./EventBean.ts";
+import User from "../data/User.ts"
+import EventBean from "./EventBean.ts"
+import { ClientEvent } from "./ApiDeclare.ts"
 
 export default class EventStorer {
     static database: DatabaseSync = this.init()
@@ -13,41 +14,44 @@ export default class EventStorer {
         return db
     }
 
-    static getInstanceForUser(user: User) {
+    static getInstanceForUser(user: User | string) {
         return new EventStorer(user)
     }
 
-    declare user: User
-    constructor(user: User) {
-        this.user = user
+    declare user_id: string
+    constructor(user: User | string) {
+        this.user_id = user instanceof User ? user.bean.id : user
 
         EventStorer.database.exec(`
             CREATE TABLE IF NOT EXISTS ${this.getTableName()} (
                 /* 序号 */ count INTEGER PRIMARY KEY AUTOINCREMENT,
                 /* 事件 */ event_name TEXT NOT NULL,
                 /* 数据 */ data TEXT NOT NULL,
+                /* 会话 */ device_session TEXT
             );
        `)
     }
     protected getTableName() {
-        return `events_${this.user.bean.id}`
+        return `events_${this.user_id.replaceAll('-', '_')}`
     }
-    addEvent(eventName: string, data: unknown) {
+    addEvent(eventName: ClientEvent, data: object, device_session: string) {
         EventStorer.database.prepare(`INSERT INTO ${this.getTableName()} (
             event_name,
-            data
-        ) VALUES (?, ?);`).run(
+            data,
+            device_session
+        ) VALUES (?, ?, ?);`).run(
             eventName,
-            JSON.stringify(data)
+            JSON.stringify(data),
+            device_session || null
         )
     }
-    getEvents() {
-        return EventStorer.database.prepare(`SELECT * FROM ${this.getTableName()};`).all().map((v: any) => ({
+    getEvents(device_session?: string) {
+        return EventStorer.database.prepare(`SELECT * FROM ${this.getTableName()}${device_session ? ` WHERE device_session = ?` : ''};`).all(...(device_session ? [ device_session ] : [])).map((v: any) => ({
             ...v,
             data: JSON.parse(v.data)
         })) as unknown as EventBean[]
     }
-    clearEvents() {
-        EventStorer.database.prepare(`DELETE FROM ${this.getTableName()};`).run()
+    clearEvents(device_session?: string) {
+        EventStorer.database.prepare(`DELETE FROM ${this.getTableName()}${device_session ? ` WHERE device_session = ?` : ''};`).run(...(device_session ? [ device_session ] : []))
     }
 }
diff --git a/server/api/UserApi.ts b/server/api/UserApi.ts
index 7e0a6d6..4fd353b 100644
--- a/server/api/UserApi.ts
+++ b/server/api/UserApi.ts
@@ -6,6 +6,7 @@ import ChatPrivate from "../data/ChatPrivate.ts"
 import Chat from "../data/Chat.ts"
 import chalk from "chalk"
 import ApiManager from "./ApiManager.ts"
+import EventStorer from "./EventStorer.ts";
 
 export default class UserApi extends BaseApi {
     override getName(): string {
@@ -37,10 +38,16 @@ export default class UserApi extends BaseApi {
 
                 clientInfo.userId = access_token.author
                 console.log(chalk.green('[验]') + ` ${access_token.author} authed on Client ${deviceId} (ip = ${ip})`)
+                const deviceSession = deviceId + '_' + sessionId
                 if (ApiManager.clients[clientInfo.userId] == null) ApiManager.clients[clientInfo.userId] = {
-                    [deviceId + '_' + sessionId]: socket
+                    [deviceSession]: socket
                 }
-                else ApiManager.clients[clientInfo.userId][deviceId + '_' + sessionId] = socket
+                else ApiManager.clients[clientInfo.userId][deviceSession] = socket
+
+                // 事件恢复
+                console.log(EventStorer.getInstanceForUser(access_token.author).getEvents(deviceSession))
+                for (const event of EventStorer.getInstanceForUser(access_token.author).getEvents(deviceSession))
+                        this.emitToClient(socket, event.event_name, event.data, access_token.author, deviceSession)
 
                 return {
                     msg: "成功",