diff --git a/mirai-core/src/commonMain/kotlin/net.mamoe.mirai/event/MessageSubscribers.kt b/mirai-core/src/commonMain/kotlin/net.mamoe.mirai/event/MessageSubscribers.kt
index 445c0358a..61e93a245 100644
--- a/mirai-core/src/commonMain/kotlin/net.mamoe.mirai/event/MessageSubscribers.kt
+++ b/mirai-core/src/commonMain/kotlin/net.mamoe.mirai/event/MessageSubscribers.kt
@@ -173,7 +173,9 @@ class MessageSubscribersBuilder<T : SenderAndMessage<*>>(
 ) {
     suspend inline fun case(equals: String, trim: Boolean = true, noinline listener: MessageListener<T>) = content({ equals == if (trim) it.trim() else it }, listener)
     suspend inline fun contains(value: String, noinline listener: MessageListener<T>) = content({ value in it }, listener)
-    suspend inline fun startsWith(start: String, noinline listener: MessageListener<T>) = content({ it.startsWith(start) }, listener)
+    suspend inline fun startsWith(prefix: String, removePrefix: Boolean = false, noinline listener: MessageListener<T>) =
+        content({ it.startsWith(prefix) }) { if (removePrefix) listener.invoke(this, this.message.stringValue.substringAfter(prefix)) else listener(this) }
+
     suspend inline fun endsWith(start: String, noinline listener: MessageListener<T>) = content({ it.endsWith(start) }, listener)
     suspend inline fun sentBy(id: UInt, noinline listener: MessageListener<T>) = content({ sender.id == id }, listener)
     suspend inline fun sentBy(id: Long, noinline listener: MessageListener<T>) = sentBy(id.toUInt(), listener)
diff --git a/mirai-core/src/commonMain/kotlin/net.mamoe.mirai/event/Subscribers.kt b/mirai-core/src/commonMain/kotlin/net.mamoe.mirai/event/Subscribers.kt
index d856ffefb..14892793f 100644
--- a/mirai-core/src/commonMain/kotlin/net.mamoe.mirai/event/Subscribers.kt
+++ b/mirai-core/src/commonMain/kotlin/net.mamoe.mirai/event/Subscribers.kt
@@ -121,9 +121,9 @@ suspend inline fun <reified E : Event> subscribeAll(noinline listeners: suspend
  */
 @ListenersBuilderDsl
 @Suppress("MemberVisibilityCanBePrivate", "unused")
-inline class ListenerBuilder<out E : Event>(
+class ListenerBuilder<out E : Event>(
     @PublishedApi
-    internal inline val handlerConsumer: suspend (Listener<E>) -> Unit
+    internal val handlerConsumer: suspend (Listener<E>) -> Unit
 ) {
     suspend inline fun handler(noinline listener: suspend (E) -> ListeningStatus) {
         handlerConsumer(Handler(listener))
diff --git a/mirai-core/src/commonMain/kotlin/net.mamoe.mirai/message/internal/MessageDataInternal.kt b/mirai-core/src/commonMain/kotlin/net.mamoe.mirai/message/internal/MessageDataInternal.kt
index 133d17c18..0c121a8f0 100644
--- a/mirai-core/src/commonMain/kotlin/net.mamoe.mirai/message/internal/MessageDataInternal.kt
+++ b/mirai-core/src/commonMain/kotlin/net.mamoe.mirai/message/internal/MessageDataInternal.kt
@@ -208,6 +208,7 @@ fun MessageChain.toPacket(forGroup: Boolean): ByteReadPacket = buildPacket {
                             writeByte(0x02)
                             //"46 52 25 46 60 30 59 4F 4A 5A 51 48 31 46 4A 53 4C 51 4C 4A 33 46 31 2E 6A 70 67".hexToBytes().stringOfWitch()
                             //   writeShortLVString(filename)//图片文件名 FR%F`0YOJZQH1FJSLQLJ3F1.jpg
+                            require(id.value.length == 37) { "Illegal ImageId: ${id.value}" }
                             writeShortLVString(id.value.substring(1..24) + ".gif")//图片文件名. 后缀不影响. 但无后缀会导致 PC QQ 无法显示这个图片
                             writeHex("03 00 04 00 00 02 A2 04")
                             writeShortLVString(id.value)
diff --git a/mirai-core/src/commonMain/kotlin/net.mamoe.mirai/network/BotSession.kt b/mirai-core/src/commonMain/kotlin/net.mamoe.mirai/network/BotSession.kt
index 6d9461902..350f6ba9c 100644
--- a/mirai-core/src/commonMain/kotlin/net.mamoe.mirai/network/BotSession.kt
+++ b/mirai-core/src/commonMain/kotlin/net.mamoe.mirai/network/BotSession.kt
@@ -73,14 +73,15 @@ class BotSession(
      * ```
      * @sample net.mamoe.mirai.network.protocol.tim.packet.action.uploadImage
      *
+     * @param checkSequence 是否期待 [ServerPacket.sequenceId] 与 [OutgoingPacket.sequenceId] 相同的包.
      * @param P 期待的包
      * @param handler 处理期待的包
      *
      * @see Bot.withSession 转换接收器 (receiver, 即 `this` 的指向) 为 [BotSession]
      */
-    suspend inline fun <reified P : ServerPacket, R> OutgoingPacket.sendAndExpect(noinline handler: suspend (P) -> R): CompletableDeferred<R> {
+    suspend inline fun <reified P : ServerPacket, R> OutgoingPacket.sendAndExpect(checkSequence: Boolean = true, noinline handler: suspend (P) -> R): CompletableDeferred<R> {
         val deferred: CompletableDeferred<R> = CompletableDeferred(coroutineContext[Job])
-        bot.network.addHandler(TemporaryPacketHandler(P::class, deferred, this@BotSession).also {
+        bot.network.addHandler(TemporaryPacketHandler(P::class, deferred, this@BotSession, checkSequence).also {
             it.toSend(this)
             it.onExpect(handler)
         })
@@ -91,7 +92,7 @@ class BotSession(
      * 发送一个数据包, 并期待接受一个特定的 [ServerPacket][P].
      * 您将能从本函数的返回值 [CompletableDeferred] 接收到所期待的 [P]
      */
-    suspend inline fun <reified P : ServerPacket> OutgoingPacket.sendAndExpect(): CompletableDeferred<P> = sendAndExpect<P, P> { it }
+    suspend inline fun <reified P : ServerPacket> OutgoingPacket.sendAndExpect(checkSequence: Boolean = true): CompletableDeferred<P> = sendAndExpect<P, P>(checkSequence) { it }
 
     suspend inline fun OutgoingPacket.send() = socket.sendPacket(this)
 }
diff --git a/mirai-core/src/commonMain/kotlin/net.mamoe.mirai/network/protocol/tim/handler/TemporaryPacketHandler.kt b/mirai-core/src/commonMain/kotlin/net.mamoe.mirai/network/protocol/tim/handler/TemporaryPacketHandler.kt
index 3b0376706..b023ee2ee 100644
--- a/mirai-core/src/commonMain/kotlin/net.mamoe.mirai/network/protocol/tim/handler/TemporaryPacketHandler.kt
+++ b/mirai-core/src/commonMain/kotlin/net.mamoe.mirai/network/protocol/tim/handler/TemporaryPacketHandler.kt
@@ -22,7 +22,8 @@ import kotlin.reflect.KClass
 class TemporaryPacketHandler<P : ServerPacket, R>(
     private val expectationClass: KClass<P>,
     private val deferred: CompletableDeferred<R>,
-    private val fromSession: BotSession
+    private val fromSession: BotSession,
+    private val checkSequence: Boolean
 ) {
     private lateinit var toSend: OutgoingPacket
 
@@ -45,7 +46,9 @@ class TemporaryPacketHandler<P : ServerPacket, R>(
         session.socket.sendPacket(toSend)
     }
 
-    suspend fun filter(session: BotSession, packet: ServerPacket): Boolean = expectationClass.isInstance(packet) && session === this.fromSession
+    @ExperimentalUnsignedTypes
+    fun filter(session: BotSession, packet: ServerPacket): Boolean =
+        expectationClass.isInstance(packet) && session === this.fromSession && if (checkSequence) packet.sequenceId == toSend.sequenceId else true
 
     suspend fun doReceive(packet: ServerPacket) {
         @Suppress("UNCHECKED_CAST")