diff --git a/gradle.properties b/gradle.properties
index 7b2a54474..f455bbc88 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -7,7 +7,7 @@ kotlin.parallel.tasks.in.project=true
 # kotlin
 kotlinVersion=1.3.61
 # kotlin libraries
-serializationVersion=0.13.0
+serializationVersion=0.14.0
 coroutinesVersion=1.3.2
 atomicFuVersion=0.14.1
 kotlinXIoVersion=0.1.16
diff --git a/mirai-core-qqandroid/build.gradle.kts b/mirai-core-qqandroid/build.gradle.kts
index 8ae9a0733..d57412496 100644
--- a/mirai-core-qqandroid/build.gradle.kts
+++ b/mirai-core-qqandroid/build.gradle.kts
@@ -64,7 +64,6 @@ kotlin {
                 api(project(":mirai-core"))
 
                 api(kotlin("stdlib", kotlinVersion))
-                api(kotlin("serialization", kotlinVersion))
 
                 api("org.jetbrains.kotlinx:atomicfu:$atomicFuVersion")
                 api(kotlinx("io", kotlinXIoVersion))
@@ -74,6 +73,7 @@ kotlin {
         }
         commonMain {
             dependencies {
+                api(kotlinx("serialization-runtime-common", serializationVersion))
             }
         }
         commonTest {
@@ -103,6 +103,7 @@ kotlin {
         val jvmMain by getting {
             dependencies {
                 runtimeOnly(files("build/classes/kotlin/jvm/main")) // classpath is not properly set by IDE
+                api(kotlinx("serialization-runtime", serializationVersion))
             }
         }
 
diff --git a/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/io/JceInput.kt b/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/io/JceInput.kt
similarity index 99%
rename from mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/io/JceInput.kt
rename to mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/io/JceInput.kt
index 2692c6d38..2910b341d 100644
--- a/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/io/JceInput.kt
+++ b/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/io/JceInput.kt
@@ -1,4 +1,4 @@
-package net.mamoe.mirai.qqandroid.network.io
+package net.mamoe.mirai.qqandroid.io
 
 import kotlinx.io.charsets.Charset
 import kotlinx.io.core.*
@@ -33,7 +33,8 @@ fun <J : JceStruct> ByteReadPacket.readJceStruct(factory: JceStruct.Factory<J>,
     }
 }
 
-fun ByteArray.asJceInput(charset: Charset = CharsetUTF8): JceInput = JceInput(this.toIoBuffer(), charset)
+fun ByteArray.asJceInput(charset: Charset = CharsetUTF8): JceInput =
+    JceInput(this.toIoBuffer(), charset)
 
 fun <J : JceStruct> ByteReadPacket.readJceRequestBufferMapVersion2ToJceStruct(factory: JceStruct.Factory<J>, charset: Charset = CharsetUTF8): J {
     this.use {
@@ -70,7 +71,8 @@ fun ByteReadPacket.readJceRequestBufferMapVersion3(charset: Charset = CharsetUTF
     }
 }
 
-fun ByteReadPacket.asJceInput(charset: Charset = CharsetUTF8): JceInput = JceInput(this.readIoBuffer(), charset)
+fun ByteReadPacket.asJceInput(charset: Charset = CharsetUTF8): JceInput =
+    JceInput(this.readIoBuffer(), charset)
 
 inline fun <R> IoBuffer.useIoBuffer(block: IoBuffer.() -> R): R {
     return try {
diff --git a/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/io/JceOutput.kt b/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/io/JceOutput.kt
similarity index 99%
rename from mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/io/JceOutput.kt
rename to mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/io/JceOutput.kt
index 3e12d45fd..a00696fbd 100644
--- a/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/io/JceOutput.kt
+++ b/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/io/JceOutput.kt
@@ -1,4 +1,4 @@
-package net.mamoe.mirai.qqandroid.network.io
+package net.mamoe.mirai.qqandroid.io
 
 import kotlinx.io.charsets.Charset
 import kotlinx.io.core.*
diff --git a/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/io/JceStruct.kt b/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/io/JceStruct.kt
similarity index 79%
rename from mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/io/JceStruct.kt
rename to mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/io/JceStruct.kt
index 451aa7605..452731941 100644
--- a/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/io/JceStruct.kt
+++ b/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/io/JceStruct.kt
@@ -1,9 +1,10 @@
-package net.mamoe.mirai.qqandroid.network.io
+package net.mamoe.mirai.qqandroid.io
 
 abstract class JceStruct {
     abstract fun writeTo(builder: JceOutput)
 
     interface Factory<out T : JceStruct> {
         fun newInstanceFrom(input: JceInput): T
+
     }
 }
\ No newline at end of file
diff --git a/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/jce/RequestPacket.kt b/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/jce/RequestPacket.kt
index 09241b37a..20cbc50fb 100644
--- a/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/jce/RequestPacket.kt
+++ b/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/jce/RequestPacket.kt
@@ -1,8 +1,8 @@
 package net.mamoe.mirai.qqandroid.network.protocol.jce
 
-import net.mamoe.mirai.qqandroid.network.io.JceInput
-import net.mamoe.mirai.qqandroid.network.io.JceOutput
-import net.mamoe.mirai.qqandroid.network.io.JceStruct
+import net.mamoe.mirai.qqandroid.io.JceInput
+import net.mamoe.mirai.qqandroid.io.JceOutput
+import net.mamoe.mirai.qqandroid.io.JceStruct
 import net.mamoe.mirai.utils.cryptor.contentToString
 
 private val EMPTY_MAP = mapOf<String, String>()
diff --git a/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/jce/SvcReqRegister.kt b/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/jce/SvcReqRegister.kt
index 475f06068..fbf809995 100644
--- a/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/jce/SvcReqRegister.kt
+++ b/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/jce/SvcReqRegister.kt
@@ -1,8 +1,8 @@
 package net.mamoe.mirai.qqandroid.network.protocol.jce
 
-import net.mamoe.mirai.qqandroid.network.io.JceInput
-import net.mamoe.mirai.qqandroid.network.io.JceOutput
-import net.mamoe.mirai.qqandroid.network.io.JceStruct
+import net.mamoe.mirai.qqandroid.io.JceInput
+import net.mamoe.mirai.qqandroid.io.JceOutput
+import net.mamoe.mirai.qqandroid.io.JceStruct
 
 class SvcReqRegister(
     var bIsOnline: Byte = 0,
diff --git a/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/jce/uni.kt b/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/jce/uni.kt
index 80d671141..f29bdee1e 100644
--- a/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/jce/uni.kt
+++ b/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/jce/uni.kt
@@ -1,9 +1,9 @@
 package net.mamoe.mirai.qqandroid.network.protocol.jce
 
 import kotlinx.io.core.BytePacketBuilder
-import net.mamoe.mirai.qqandroid.network.io.JceOutput
-import net.mamoe.mirai.qqandroid.network.io.buildJcePacket
-import net.mamoe.mirai.qqandroid.network.io.writeJcePacket
+import net.mamoe.mirai.qqandroid.io.JceOutput
+import net.mamoe.mirai.qqandroid.io.buildJcePacket
+import net.mamoe.mirai.qqandroid.io.writeJcePacket
 
 inline fun BytePacketBuilder.writeUniRequestPacket(requestPacket: RequestPacket.() -> Unit) {
     writeJcePacket {
diff --git a/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/packet/PacketFactory.kt b/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/packet/PacketFactory.kt
index 275ab8842..33130f52b 100644
--- a/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/packet/PacketFactory.kt
+++ b/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/packet/PacketFactory.kt
@@ -4,7 +4,7 @@ import kotlinx.io.core.*
 import kotlinx.io.pool.useInstance
 import net.mamoe.mirai.data.Packet
 import net.mamoe.mirai.qqandroid.QQAndroidBot
-import net.mamoe.mirai.qqandroid.network.io.JceInput
+import net.mamoe.mirai.qqandroid.io.JceInput
 import net.mamoe.mirai.qqandroid.network.protocol.jce.RequestPacket
 import net.mamoe.mirai.qqandroid.network.protocol.packet.chat.receive.MessageSvc
 import net.mamoe.mirai.qqandroid.network.protocol.packet.chat.receive.OnlinePush
diff --git a/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/packet/chat/data/PushNotifyPack.kt b/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/packet/chat/data/PushNotifyPack.kt
index 55d4b4b1c..0f706f0a7 100644
--- a/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/packet/chat/data/PushNotifyPack.kt
+++ b/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/packet/chat/data/PushNotifyPack.kt
@@ -1,9 +1,9 @@
 package net.mamoe.mirai.qqandroid.network.protocol.packet.chat.data
 
 import net.mamoe.mirai.data.Packet
-import net.mamoe.mirai.qqandroid.network.io.JceInput
-import net.mamoe.mirai.qqandroid.network.io.JceOutput
-import net.mamoe.mirai.qqandroid.network.io.JceStruct
+import net.mamoe.mirai.qqandroid.io.JceInput
+import net.mamoe.mirai.qqandroid.io.JceOutput
+import net.mamoe.mirai.qqandroid.io.JceStruct
 import net.mamoe.mirai.qqandroid.network.protocol.packet.EMPTY_BYTE_ARRAY
 
 class RequestPushNotify(
diff --git a/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/packet/chat/receive/MessageSvc.PushNotify.kt b/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/packet/chat/receive/MessageSvc.PushNotify.kt
index 1a060a0c3..59f8cae90 100644
--- a/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/packet/chat/receive/MessageSvc.PushNotify.kt
+++ b/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/packet/chat/receive/MessageSvc.PushNotify.kt
@@ -2,7 +2,7 @@ package net.mamoe.mirai.qqandroid.network.protocol.packet.chat.receive
 
 import kotlinx.io.core.ByteReadPacket
 import net.mamoe.mirai.qqandroid.QQAndroidBot
-import net.mamoe.mirai.qqandroid.network.io.readJceRequestBufferMapVersion2ToJceStruct
+import net.mamoe.mirai.qqandroid.io.readJceRequestBufferMapVersion2ToJceStruct
 import net.mamoe.mirai.qqandroid.network.protocol.packet.PacketFactory
 import net.mamoe.mirai.qqandroid.network.protocol.packet.chat.data.RequestPushNotify
 import net.mamoe.mirai.utils.cryptor.contentToString
diff --git a/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/packet/login/Register.kt b/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/packet/login/Register.kt
index 1c244a4fb..41342f294 100644
--- a/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/packet/login/Register.kt
+++ b/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/packet/login/Register.kt
@@ -5,8 +5,8 @@ import kotlinx.serialization.protobuf.ProtoBuf
 import net.mamoe.mirai.data.Packet
 import net.mamoe.mirai.qqandroid.QQAndroidBot
 import net.mamoe.mirai.qqandroid.network.QQAndroidClient
-import net.mamoe.mirai.qqandroid.network.io.jceMap
-import net.mamoe.mirai.qqandroid.network.io.jceStruct
+import net.mamoe.mirai.qqandroid.io.jceMap
+import net.mamoe.mirai.qqandroid.io.jceStruct
 import net.mamoe.mirai.qqandroid.network.protocol.jce.SvcReqRegister
 import net.mamoe.mirai.qqandroid.network.protocol.jce.writeUniRequestPacket
 import net.mamoe.mirai.qqandroid.network.protocol.packet.OutgoingPacket