diff --git a/gradle.properties b/gradle.properties
index d0b6351c8..64e2a1cf7 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,7 +1,7 @@
 # style guide
 kotlin.code.style=official
 # config
-mirai_version=0.1.4
+mirai_version=0.1.5
 kotlin.incremental.multiplatform=true
 kotlin.parallel.tasks.in.project=true
 # kotlin
diff --git a/mirai-api-http/src/main/kotlin/net.mamoe.mirai.api.http/MiraiHttpApplication.kt b/mirai-api-http/src/main/kotlin/net.mamoe.mirai.api.http/MiraiHttpApplication.kt
index 7876df4f5..31d31c5f1 100644
--- a/mirai-api-http/src/main/kotlin/net.mamoe.mirai.api.http/MiraiHttpApplication.kt
+++ b/mirai-api-http/src/main/kotlin/net.mamoe.mirai.api.http/MiraiHttpApplication.kt
@@ -52,8 +52,8 @@ fun Application.mirai() {
         mirai("/addFriend") {
             Bot.instanceWhose(qq = param("bot")).addFriend(
                 id = param("qq"),
-                lazyMessage = paramOrNull<String?>("message")?.let { { it } } ?: { "" },
-                lazyRemark = paramOrNull<String?>("remark")?.let { { it } } ?: { "" }
+                message = paramOrNull<String?>("message")?.let { it },
+                remark = paramOrNull<String?>("remark")?.let { it }
             )
 
             call.ok()
diff --git a/mirai-core/src/commonMain/kotlin/net.mamoe.mirai/Bot.kt b/mirai-core/src/commonMain/kotlin/net.mamoe.mirai/Bot.kt
index 029e8498a..25b410fae 100644
--- a/mirai-core/src/commonMain/kotlin/net.mamoe.mirai/Bot.kt
+++ b/mirai-core/src/commonMain/kotlin/net.mamoe.mirai/Bot.kt
@@ -9,19 +9,11 @@ import net.mamoe.mirai.Bot.ContactSystem
 import net.mamoe.mirai.contact.*
 import net.mamoe.mirai.network.BotNetworkHandler
 import net.mamoe.mirai.network.protocol.tim.TIMBotNetworkHandler
-import net.mamoe.mirai.network.protocol.tim.packet.action.AddFriendPacket
-import net.mamoe.mirai.network.protocol.tim.packet.action.CanAddFriendPacket
-import net.mamoe.mirai.network.protocol.tim.packet.action.CanAddFriendResponse
-import net.mamoe.mirai.network.protocol.tim.packet.action.RequestFriendAdditionKeyPacket
 import net.mamoe.mirai.network.protocol.tim.packet.login.LoginResult
-import net.mamoe.mirai.network.sessionKey
 import net.mamoe.mirai.utils.BotConfiguration
 import net.mamoe.mirai.utils.DefaultLogger
 import net.mamoe.mirai.utils.MiraiLogger
 import net.mamoe.mirai.utils.internal.coerceAtLeastOrFail
-import kotlin.contracts.ExperimentalContracts
-import kotlin.contracts.InvocationKind
-import kotlin.contracts.contract
 import kotlin.coroutines.CoroutineContext
 import kotlin.jvm.JvmOverloads
 
@@ -179,145 +171,4 @@ class Bot(val account: BotAccount, val logger: MiraiLogger) : CoroutineScope {
             _instances += bot
         }
     }
-}
-
-@Suppress("ClassName")
-sealed class AddFriendResult {
-
-    abstract class DONE internal constructor() : AddFriendResult() {
-        override fun toString(): String = "AddFriendResult(Done)"
-    }
-
-    /**
-     * 对方拒绝添加好友
-     */
-    object REJECTED : AddFriendResult() {
-        override fun toString(): String = "AddFriendResult(Rejected)"
-    }
-
-    /**
-     * 这个人已经是好友
-     */
-    object ALREADY_ADDED : DONE() {
-        override fun toString(): String = "AddFriendResult(AlreadyAdded)"
-    }
-
-    /**
-     * 等待对方同意
-     */
-    object WAITING_FOR_APPROVE : DONE() {
-        override fun toString(): String = "AddFriendResult(WaitingForApprove)"
-    }
-
-    /**
-     * 成功添加 (只在对方设置为允许任何人直接添加为好友时才会获得这个结果)
-     */
-    object ADDED : DONE() {
-        override fun toString(): String = "AddFriendResult(Added)"
-    }
-}
-
-
-/*
-
-// TODO: 2019/11/11 其中一个是对方已同意添加好友的包
-
-Mirai 22:04:48 : Packet received: UnknownEventPacket(id=00 BC, identity=(2092749761->1994701021))
- = 00 00 00 08 00 0A 00 04 01 00 00 00 01 00 00 0F 00 00 00 00 00 00 00 00 01 03 EB 00 02 0A 00
-Mirai 22:04:48 : Packet received: UnknownEventPacket(id=00 D6, identity=(2092749761->1994701021))
- = 00 00 00 08 00 0A 00 04 01 00 00 00 00 00 00 00 BC 01 00 00 00 00 02 00 00
- */
-
-/**
- * 添加一个好友
- *
- * @param lazyMessage 若需要验证请求时的验证消息.
- * @param lazyRemark 好友备注
- */
-@UseExperimental(ExperimentalContracts::class)
-suspend fun ContactSystem.addFriend(id: UInt, lazyMessage: () -> String = { "" }, lazyRemark: () -> String = { "" }): AddFriendResult {
-    contract {
-        callsInPlace(lazyMessage, InvocationKind.AT_MOST_ONCE)
-        callsInPlace(lazyRemark, InvocationKind.AT_MOST_ONCE)
-    }
-    return bot.withSession {
-        when (CanAddFriendPacket(bot.qqAccount, id, bot.sessionKey).sendAndExpect<CanAddFriendResponse>()) {
-            is CanAddFriendResponse.AlreadyAdded -> AddFriendResult.ALREADY_ADDED
-            is CanAddFriendResponse.Rejected -> AddFriendResult.REJECTED
-
-            is CanAddFriendResponse.ReadyToAdd,
-            is CanAddFriendResponse.RequireVerification -> {
-                val key = RequestFriendAdditionKeyPacket(bot.qqAccount, id, sessionKey).sendAndExpect<RequestFriendAdditionKeyPacket.Response>().key
-                AddFriendPacket.RequestAdd(bot.qqAccount, id, sessionKey, lazyMessage(), lazyRemark(), key).sendAndExpect<AddFriendPacket.Response>()
-                return AddFriendResult.WAITING_FOR_APPROVE
-            }
-            //这个做的是需要验证消息的情况, 不确定 ReadyToAdd 的是啥
-
-            // 似乎 RequireVerification 和 ReadyToAdd 判断错了. 需要重新检查一下
-
-            // TODO: 2019/11/11 需要验证问题的情况
-
-            /*is CanAddFriendResponse.ReadyToAdd -> {
-            // TODO: 2019/11/11 这不需要验证信息的情况
-
-            //AddFriendPacket(bot.qqAccount, id, bot.sessionKey, ).sendAndExpectAsync<AddFriendPacket.Response>().await()
-            TODO()
-        }*/
-        }
-    }
-}
-
-/*
-1494695429 同意好友请求后收到以下包:
-
-Mirai 22:11:14 : Packet received: UnknownEventPacket(id=02 10, identity=(1994701021->1994701021))
- = 00 00 00 08 00 0A 00 04 01 00 00 00 00 00 00 06 00 00 00 08 08 02 1A 02 08 44 2A 06 08 83 D8 A5 EE 05
-Mirai 22:12:06 : Packet received: UnknownEventPacket(id=02 02, identity=(1994701021->1994701021))
- = 00 00 00 08 00 0A 00 04 01 00 00 00 02 00 00
-Mirai 22:12:06 : Packet received: UnknownEventPacket(id=00 D6, identity=(1494695429->1994701021))
- = 00 00 00 08 00 0A 00 04 01 00 00 00 00 00 00 00 BC 01 00 00 00 00 02 00 00
-Mirai 22:12:06 : Packet received: UnknownEventPacket(id=00 BC, identity=(1494695429->1994701021))
- = 00 00 00 08 00 0A 00 04 01 00 00 00 01 00 00 0F 00 00 00 00 00 00 00 00 01 03 EB 00 02 0A 00
-Mirai 22:12:06 : Packet received: UnknownEventPacket(id=02 10, identity=(1994701021->1994701021))
-//�9����同意你的加好友请求"him188的小dick(
- = 00 00 00 08 00 0A 00 04 01 00 00 00 00 00 00 07 00 00 00 3B 08 02 1A 03 08 E2 01 0A 39 08 01 10 85 FC DC C8 05 1A 1B E5 90 8C E6 84 8F E4 BD A0 E7 9A 84 E5 8A A0 E5 A5 BD E5 8F 8B E8 AF B7 E6 B1 82 22 10 68 69 6D 31 38 38 E7 9A 84 E5 B0 8F 64 69 63 6B 28 01
-Mirai 22:12:06 : Packet received: UnknownEventPacket(id=02 10, identity=(1994701021->1994701021))
- = 00 00 00 08 00 0A 00 04 01 00 00 00 00 00 00 06 00 00 00 08 08 02 1A 02 08 44 2A 06 08 B7 D8 A5 EE 05
-Mirai 22:12:06 : Packet received: UnknownEventPacket(id=02 10, identity=(1994701021->1994701021))
- = 00 00 00 08 00 0A 00 04 01 00 00 00 00 00 00 06 00 00 00 04 08 02 1A 02 08 23 1A 02 08 00
-Mirai 22:12:06 : Packet received: UnknownEventPacket(id=02 10, identity=(1994701021->1994701021))
- = 00 00 00 08 00 0A 00 04 01 00 00 00 00 00 00 07 00 00 00 0C 08 02 1A 03 08 E2 01 0A 0A 08 00 10 DD F1 92 B7 07 1A 00
-Mirai 22:12:06 : Packet received: UnknownEventPacket(id=02 10, identity=(1994701021->1994701021))
- = 00 00 00 08 00 0A 00 04 01 00 00 00 00 00 00 06 00 00 00 18 08 02 1A 02 08 44 1A 0E 08 DD F1 92 B7 07 10 B7 D8 A5 EE 05 18 01 2A 06 08 B7 D8 A5 EE 05
-Mirai 22:12:06 : Packet received: UnknownEventPacket(id=02 10, identity=(1494695429->1994701021))
-//来自QQ号查找:BJR
- = 00 00 00 08 00 0A 00 04 01 00 00 00 00 00 00 06 00 00 00 31 08 02 1A 02 08 23 12 2F 08 DD F1 92 B7 07 10 85 FC DC C8 05 18 03 20 82 D8 A5 EE 05 2A 11 E6 9D A5 E8 87 AA 51 51 E5 8F B7 E6 9F A5 E6 89 BE 3A 00 42 00 4A 00 52 00
-Mirai 22:12:07 : Packet received: UnknownPacket(01 2D)
-body=01 01 00 00 00 01 59 17 3E 05 00 00 00
-Mirai 22:12:07 : UnknownPacket(01 2D) = 71 B9 C2 FD 11 79 A3 CC FB 30 BF C6 5E 3B 18 87 A7 1C 52 BF 7F B4 61 42 BF C6 5E 3B 18 87 A7 1C 52 BF 7F B4 61 42 8A CB 49 F4 72 98 29 55 F8 04 FB 38 F5 87 65 98 9D D0 F0 F4 3A EC 12 02 43 F5 39 BF 40 2E 4F 0B 37 29 C6 DB A7 3B FC C7 FB 90 CF 6F 15 D3 34 75 EE 2A 4C 36 E4 39 F2 D1 4B 87 82 37 16 A3 84 E8 D8 2D 19 F3 A8 20 6E 66 C7 22 16 A3 84 E8 D8 2D 19 F3 A8 20 6E 66 C7 22 6D 2A F0 DA A1 E2 C1 54 29 E2 C5 A1 26 11 CA FC 4A E9 EA 32 95 78 41 31 9E 78 04 A8 B6 7C 0E E7 2B 32 87 E3 0A 84 67 F4 83 3F 53 C8 B1 BE EE 07 02 10 97 67 AF 0C DF 2B 20 AC E0 7E 42 7B 98 01 CB CE B8 13 52 8B 34 9A 4D A0 14 BA 6E 88 0E 2F F9 06 B5 1E 4A 00 D7 0E 0A 58 75 7D 39 2E B1 38 A0 4A 13 1C 3E 71 8C 78 CA F7 39 2E B1 38 A0 4A 13 1C 3E 71 8C 78 CA F7 46 06 FA F4 99 D8 52 A1 D7 70 12 40 1B 61 82 3D 8D F6 96 F1 C5 DB 1C E3 F8 9D DD 8A 2C 2C F5 62 EC BF FD C1 F0 77 58 0B FD 29 DE 23 D0 AF CD 46 90 A2 A1 D4 50 6D B2 52 D4 4A 2A EF 7D 4E 6E F8 63 41 BE D8 5F A1 A9 43 BF BC E1 54 C0 A0 33 CD 1B C6 84 2E 72 31 F7 E2 A7 91 3C DB 2D FD A7 84 CA 87 A2 3C 64 A4 04 82 4B 88 74 74 43 45 E1 48 FA BB 15 A6 D5 82 3F FF 2A BA C8 AF F8 E1 77 15 0D 5C 84 EB 40 C7 1E 52 16 CB EB 75 04 54 17 95 09 BF FD CA E8 C7 D1 93 F8 83 6B 50 26 A8 E6 23 00 AA EB 75 56 2D 24 62 CC 79 4E AA 92 B6 F6 CA BA 57 05 57 B3 53 32 60 4B 3B 20 D0 F6 57 31 52 49 EC B0 0B C0 97 D6 39 AC 16 F6 57 31 52 49 EC B0 0B C0 97 D6 39 AC 16 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-
-2092749761 同意后收到以下几个包
-
-Mirai 22:04:40 : Packet received: UnknownEventPacket(id=02 10, identity=(1994701021->1994701021))
- = 00 00 00 08 00 0A 00 04 01 00 00 00 00 00 00 06 00 00 00 08 08 02 1A 02 08 44 2A 06 08 F9 D4 A5 EE 05
-Mirai 22:04:45 : Packet received: UnknownEventPacket(id=02 10, identity=(1040400290->1994701021))
-//5�������%�ԥ� (2对方正在输入...(
- = 00 00 00 08 00 0A 00 04 01 00 00 00 00 00 00 07 00 00 00 35 08 02 1A 03 08 95 02 08 A2 FF 8C F0 03 10 DD F1 92 B7 07 1A 25 08 00 10 05 18 FE D4 A5 EE 05 20 01 28 08 32 15 E5 AF B9 E6 96 B9 E6 AD A3 E5 9C A8 E8 BE 93 E5 85 A5 2E 2E 2E 28 01
-Mirai 22:04:45 : Packet received: FriendConversationInitialize(qq=1040400290)
-Mirai 22:04:48 : Packet received: UnknownEventPacket(id=00 BC, identity=(2092749761->1994701021))
- = 00 00 00 08 00 0A 00 04 01 00 00 00 01 00 00 0F 00 00 00 00 00 00 00 00 01 03 EB 00 02 0A 00
-Mirai 22:04:48 : Packet received: UnknownEventPacket(id=00 D6, identity=(2092749761->1994701021))
- = 00 00 00 08 00 0A 00 04 01 00 00 00 00 00 00 00 BC 01 00 00 00 00 02 00 00
-Mirai 22:04:48 : Packet received: UnknownEventPacket(id=02 02, identity=(1994701021->1994701021))
- = 00 00 00 08 00 0A 00 04 01 00 00 00 02 00 00
-Mirai 22:04:48 : Packet received: UnknownEventPacket(id=02 10, identity=(1994701021->1994701021))
-//:�8����同意你的加好友请求"him188的老公(
- = 00 00 00 08 00 0A 00 04 01 00 00 00 00 00 00 07 00 00 00 3A 08 02 1A 03 08 E2 01 0A 38 08 01 10 C1 A7 F3 E5 07 1A 1B E5 90 8C E6 84 8F E4 BD A0 E7 9A 84 E5 8A A0 E5 A5 BD E5 8F 8B E8 AF B7 E6 B1 82 22 0F 68 69 6D 31 38 38 E7 9A 84 E8 80 81 E5 85 AC 28 01
-Mirai 22:04:48 : Packet received: UnknownEventPacket(id=02 10, identity=(1994701021->1994701021))
- = 00 00 00 08 00 0A 00 04 01 00 00 00 00 00 00 06 00 00 00 08 08 02 1A 02 08 44 2A 06 08 81 D5 A5 EE 05
-Mirai 22:04:48 : Packet received: UnknownPacket(01 2D)
-body=01 01 00 00 00 01 7C BC D3 C1 00 00 00
-Mirai 22:04:48 : UnknownPacket(01 2D) = 66 B9 2C A3 EA 31 AD 5B E4 52 37 25 3B 21 A9 FF EE 2E 80 AF 6F 9B C0 A7 37 25 3B 21 A9 FF EE 2E 80 AF 6F 9B C0 A7 6D FF BF 73 37 8A 34 4C D1 DF D3 ED 93 DA B3 32 AC 4D 11 D7 68 F0 93 A3 F5 BE 93 DA B3 32 AC 4D 11 D7 68 F0 93 A3 F5 BE CC 5F 8A DC 52 D7 2E 39 F6 D0 A6 FE E2 FE A9 1D C1 5E AC 2A 02 46 A0 90 23 6E 10 A6 48 B0 04 BC 06 F8 AF 42 87 DA 69 42 55 AA 48 B0 04 BC 06 F8 AF 42 87 DA 69 42 55 AA 29 3B C5 0C 5B 43 EE FA 30 EA 81 86 F3 8D FB 41 EA A3 23 59 27 49 03 B6 34 5C 4A CA DE 8E 3C 02 36 5F 48 C7 14 73 E4 D4 D8 C3 81 80 FC 49 9B 3C CC 4D D8 E9 07 84 56 40 F9 7E 80 D8 11 60 B1 FF F0 0E 5D 6E 4B 45 41 B4 81 54 EB B9 EE 98 D2 29 F3 05 BD 96 D3 E4 A6 42 98 CD C4 D1 5F 10 DE 62 EB E5 D3 E4 A6 42 98 CD C4 D1 5F 10 DE 62 EB E5 25 61 AA 54 A1 BE 14 78 F9 AC 2B F1 43 0B B5 51 2D 15 AA DE 97 B8 CC A3 2A 9B 8B AB 37 7C 45 57 D6 B9 BF 6C 4B 7B 66 AD 89 EB 90 42 0F 5F 63 A7 CC 06 4D 08 E0 5C 5D E3 9A AF 0D 19 C7 78 B5 30 6C 9D E2 A4 CA 3A DD 64 FC 78 A8 E1 59 1F 67 97 C6 B2 0B 73 EB 9A 2D 75 07 7E CE 82 3B EC CF 3A 9F 98 4F C0 BA 98 69 D7 65 87 EA 53 90 18 01 BD 8B AB EB 40 74 9C 03 C4 92 3B 9A F5 3A DD 51 84 EF 72 48 71 DC B4 AA D5 95 AB BC 4B 97 70 4D FD EE DE 37 BD 33 0C DF 64 C5 55 2E ED A6 98 6A 88 28 8B F3 24 8D 73 00 DE 9E FC 78 15 4A AC E2 3F AD 93 4C 2F 88 48 34 DA F3 F7 FC B7 E7 39 F6 33 3E 5C 88 48 34 DA F3 F7 FC B7 E7 39 F6 33 3E 5C 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-
-
- */
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/mirai-core/src/commonMain/kotlin/net.mamoe.mirai/BotAddFriend.kt b/mirai-core/src/commonMain/kotlin/net.mamoe.mirai/BotAddFriend.kt
new file mode 100644
index 000000000..3367ddbb1
--- /dev/null
+++ b/mirai-core/src/commonMain/kotlin/net.mamoe.mirai/BotAddFriend.kt
@@ -0,0 +1,149 @@
+@file:JvmMultifileClass
+@file:JvmName("BotHelperKt")
+@file:Suppress("EXPERIMENTAL_API_USAGE")
+
+package net.mamoe.mirai
+
+import net.mamoe.mirai.network.protocol.tim.packet.action.AddFriendPacket
+import net.mamoe.mirai.network.protocol.tim.packet.action.CanAddFriendPacket
+import net.mamoe.mirai.network.protocol.tim.packet.action.CanAddFriendResponse
+import net.mamoe.mirai.network.protocol.tim.packet.action.RequestFriendAdditionKeyPacket
+import net.mamoe.mirai.network.sessionKey
+import kotlin.contracts.ExperimentalContracts
+import kotlin.jvm.JvmMultifileClass
+import kotlin.jvm.JvmName
+
+
+@Suppress("ClassName")
+sealed class AddFriendResult {
+
+    abstract class DONE internal constructor() : AddFriendResult() {
+        override fun toString(): String = "AddFriendResult(Done)"
+    }
+
+    /**
+     * 对方拒绝添加好友
+     */
+    object REJECTED : AddFriendResult() {
+        override fun toString(): String = "AddFriendResult(Rejected)"
+    }
+
+    /**
+     * 这个人已经是好友
+     */
+    object ALREADY_ADDED : DONE() {
+        override fun toString(): String = "AddFriendResult(AlreadyAdded)"
+    }
+
+    /**
+     * 等待对方同意
+     */
+    object WAITING_FOR_APPROVE : DONE() {
+        override fun toString(): String = "AddFriendResult(WaitingForApprove)"
+    }
+
+    /**
+     * 成功添加 (只在对方设置为允许任何人直接添加为好友时才会获得这个结果)
+     */
+    object ADDED : DONE() {
+        override fun toString(): String = "AddFriendResult(Added)"
+    }
+}
+
+
+/*
+
+// TODO: 2019/11/11 其中一个是对方已同意添加好友的包
+
+Mirai 22:04:48 : Packet received: UnknownEventPacket(id=00 BC, identity=(2092749761->1994701021))
+ = 00 00 00 08 00 0A 00 04 01 00 00 00 01 00 00 0F 00 00 00 00 00 00 00 00 01 03 EB 00 02 0A 00
+Mirai 22:04:48 : Packet received: UnknownEventPacket(id=00 D6, identity=(2092749761->1994701021))
+ = 00 00 00 08 00 0A 00 04 01 00 00 00 00 00 00 00 BC 01 00 00 00 00 02 00 00
+ */
+
+/**
+ * 添加一个好友
+ *
+ * @param message 若需要验证请求时的验证消息.
+ * @param remark 好友备注
+ */
+@UseExperimental(ExperimentalContracts::class)
+suspend fun Bot.ContactSystem.addFriend(id: UInt, message: String? = null, remark: String? = null): AddFriendResult = bot.withSession {
+    return when (CanAddFriendPacket(bot.qqAccount, id, bot.sessionKey).sendAndExpect<CanAddFriendResponse>()) {
+        is CanAddFriendResponse.AlreadyAdded -> AddFriendResult.ALREADY_ADDED
+        is CanAddFriendResponse.Rejected -> AddFriendResult.REJECTED
+
+        is CanAddFriendResponse.ReadyToAdd,
+        is CanAddFriendResponse.RequireVerification -> {
+            val key = RequestFriendAdditionKeyPacket(bot.qqAccount, id, sessionKey).sendAndExpect<RequestFriendAdditionKeyPacket.Response>().key
+            AddFriendPacket.RequestAdd(bot.qqAccount, id, sessionKey, message, remark, key).sendAndExpect<AddFriendPacket.Response>()
+            AddFriendResult.WAITING_FOR_APPROVE
+        } //这个做的是需要验证消息的情况, 不确定 ReadyToAdd 的是啥
+
+        // 似乎 RequireVerification 和 ReadyToAdd 判断错了. 需要重新检查一下
+
+        // TODO: 2019/11/11 需要验证问题的情况
+
+        /*is CanAddFriendResponse.ReadyToAdd -> {
+        // TODO: 2019/11/11 这不需要验证信息的情况
+
+        //AddFriendPacket(bot.qqAccount, id, bot.sessionKey, ).sendAndExpectAsync<AddFriendPacket.Response>().await()
+        TODO()
+    }*/
+    }
+}
+
+/*
+1494695429 同意好友请求后收到以下包:
+
+Mirai 22:11:14 : Packet received: UnknownEventPacket(id=02 10, identity=(1994701021->1994701021))
+ = 00 00 00 08 00 0A 00 04 01 00 00 00 00 00 00 06 00 00 00 08 08 02 1A 02 08 44 2A 06 08 83 D8 A5 EE 05
+Mirai 22:12:06 : Packet received: UnknownEventPacket(id=02 02, identity=(1994701021->1994701021))
+ = 00 00 00 08 00 0A 00 04 01 00 00 00 02 00 00
+Mirai 22:12:06 : Packet received: UnknownEventPacket(id=00 D6, identity=(1494695429->1994701021))
+ = 00 00 00 08 00 0A 00 04 01 00 00 00 00 00 00 00 BC 01 00 00 00 00 02 00 00
+Mirai 22:12:06 : Packet received: UnknownEventPacket(id=00 BC, identity=(1494695429->1994701021))
+ = 00 00 00 08 00 0A 00 04 01 00 00 00 01 00 00 0F 00 00 00 00 00 00 00 00 01 03 EB 00 02 0A 00
+Mirai 22:12:06 : Packet received: UnknownEventPacket(id=02 10, identity=(1994701021->1994701021))
+//�9����同意你的加好友请求"him188的小dick(
+ = 00 00 00 08 00 0A 00 04 01 00 00 00 00 00 00 07 00 00 00 3B 08 02 1A 03 08 E2 01 0A 39 08 01 10 85 FC DC C8 05 1A 1B E5 90 8C E6 84 8F E4 BD A0 E7 9A 84 E5 8A A0 E5 A5 BD E5 8F 8B E8 AF B7 E6 B1 82 22 10 68 69 6D 31 38 38 E7 9A 84 E5 B0 8F 64 69 63 6B 28 01
+Mirai 22:12:06 : Packet received: UnknownEventPacket(id=02 10, identity=(1994701021->1994701021))
+ = 00 00 00 08 00 0A 00 04 01 00 00 00 00 00 00 06 00 00 00 08 08 02 1A 02 08 44 2A 06 08 B7 D8 A5 EE 05
+Mirai 22:12:06 : Packet received: UnknownEventPacket(id=02 10, identity=(1994701021->1994701021))
+ = 00 00 00 08 00 0A 00 04 01 00 00 00 00 00 00 06 00 00 00 04 08 02 1A 02 08 23 1A 02 08 00
+Mirai 22:12:06 : Packet received: UnknownEventPacket(id=02 10, identity=(1994701021->1994701021))
+ = 00 00 00 08 00 0A 00 04 01 00 00 00 00 00 00 07 00 00 00 0C 08 02 1A 03 08 E2 01 0A 0A 08 00 10 DD F1 92 B7 07 1A 00
+Mirai 22:12:06 : Packet received: UnknownEventPacket(id=02 10, identity=(1994701021->1994701021))
+ = 00 00 00 08 00 0A 00 04 01 00 00 00 00 00 00 06 00 00 00 18 08 02 1A 02 08 44 1A 0E 08 DD F1 92 B7 07 10 B7 D8 A5 EE 05 18 01 2A 06 08 B7 D8 A5 EE 05
+Mirai 22:12:06 : Packet received: UnknownEventPacket(id=02 10, identity=(1494695429->1994701021))
+//来自QQ号查找:BJR
+ = 00 00 00 08 00 0A 00 04 01 00 00 00 00 00 00 06 00 00 00 31 08 02 1A 02 08 23 12 2F 08 DD F1 92 B7 07 10 85 FC DC C8 05 18 03 20 82 D8 A5 EE 05 2A 11 E6 9D A5 E8 87 AA 51 51 E5 8F B7 E6 9F A5 E6 89 BE 3A 00 42 00 4A 00 52 00
+Mirai 22:12:07 : Packet received: UnknownPacket(01 2D)
+body=01 01 00 00 00 01 59 17 3E 05 00 00 00
+Mirai 22:12:07 : UnknownPacket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00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+
+2092749761 同意后收到以下几个包
+
+Mirai 22:04:40 : Packet received: UnknownEventPacket(id=02 10, identity=(1994701021->1994701021))
+ = 00 00 00 08 00 0A 00 04 01 00 00 00 00 00 00 06 00 00 00 08 08 02 1A 02 08 44 2A 06 08 F9 D4 A5 EE 05
+Mirai 22:04:45 : Packet received: UnknownEventPacket(id=02 10, identity=(1040400290->1994701021))
+//5�������%�ԥ� (2对方正在输入...(
+ = 00 00 00 08 00 0A 00 04 01 00 00 00 00 00 00 07 00 00 00 35 08 02 1A 03 08 95 02 08 A2 FF 8C F0 03 10 DD F1 92 B7 07 1A 25 08 00 10 05 18 FE D4 A5 EE 05 20 01 28 08 32 15 E5 AF B9 E6 96 B9 E6 AD A3 E5 9C A8 E8 BE 93 E5 85 A5 2E 2E 2E 28 01
+Mirai 22:04:45 : Packet received: FriendConversationInitialize(qq=1040400290)
+Mirai 22:04:48 : Packet received: UnknownEventPacket(id=00 BC, identity=(2092749761->1994701021))
+ = 00 00 00 08 00 0A 00 04 01 00 00 00 01 00 00 0F 00 00 00 00 00 00 00 00 01 03 EB 00 02 0A 00
+Mirai 22:04:48 : Packet received: UnknownEventPacket(id=00 D6, identity=(2092749761->1994701021))
+ = 00 00 00 08 00 0A 00 04 01 00 00 00 00 00 00 00 BC 01 00 00 00 00 02 00 00
+Mirai 22:04:48 : Packet received: UnknownEventPacket(id=02 02, identity=(1994701021->1994701021))
+ = 00 00 00 08 00 0A 00 04 01 00 00 00 02 00 00
+Mirai 22:04:48 : Packet received: UnknownEventPacket(id=02 10, identity=(1994701021->1994701021))
+//:�8����同意你的加好友请求"him188的老公(
+ = 00 00 00 08 00 0A 00 04 01 00 00 00 00 00 00 07 00 00 00 3A 08 02 1A 03 08 E2 01 0A 38 08 01 10 C1 A7 F3 E5 07 1A 1B E5 90 8C E6 84 8F E4 BD A0 E7 9A 84 E5 8A A0 E5 A5 BD E5 8F 8B E8 AF B7 E6 B1 82 22 0F 68 69 6D 31 38 38 E7 9A 84 E8 80 81 E5 85 AC 28 01
+Mirai 22:04:48 : Packet received: UnknownEventPacket(id=02 10, identity=(1994701021->1994701021))
+ = 00 00 00 08 00 0A 00 04 01 00 00 00 00 00 00 06 00 00 00 08 08 02 1A 02 08 44 2A 06 08 81 D5 A5 EE 05
+Mirai 22:04:48 : Packet received: UnknownPacket(01 2D)
+body=01 01 00 00 00 01 7C BC D3 C1 00 00 00
+Mirai 22:04:48 : UnknownPacket(01 2D) = 66 B9 2C A3 EA 31 AD 5B E4 52 37 25 3B 21 A9 FF EE 2E 80 AF 6F 9B C0 A7 37 25 3B 21 A9 FF EE 2E 80 AF 6F 9B C0 A7 6D FF BF 73 37 8A 34 4C D1 DF D3 ED 93 DA B3 32 AC 4D 11 D7 68 F0 93 A3 F5 BE 93 DA B3 32 AC 4D 11 D7 68 F0 93 A3 F5 BE CC 5F 8A DC 52 D7 2E 39 F6 D0 A6 FE E2 FE A9 1D C1 5E AC 2A 02 46 A0 90 23 6E 10 A6 48 B0 04 BC 06 F8 AF 42 87 DA 69 42 55 AA 48 B0 04 BC 06 F8 AF 42 87 DA 69 42 55 AA 29 3B C5 0C 5B 43 EE FA 30 EA 81 86 F3 8D FB 41 EA A3 23 59 27 49 03 B6 34 5C 4A CA DE 8E 3C 02 36 5F 48 C7 14 73 E4 D4 D8 C3 81 80 FC 49 9B 3C CC 4D D8 E9 07 84 56 40 F9 7E 80 D8 11 60 B1 FF F0 0E 5D 6E 4B 45 41 B4 81 54 EB B9 EE 98 D2 29 F3 05 BD 96 D3 E4 A6 42 98 CD C4 D1 5F 10 DE 62 EB E5 D3 E4 A6 42 98 CD C4 D1 5F 10 DE 62 EB E5 25 61 AA 54 A1 BE 14 78 F9 AC 2B F1 43 0B B5 51 2D 15 AA DE 97 B8 CC A3 2A 9B 8B AB 37 7C 45 57 D6 B9 BF 6C 4B 7B 66 AD 89 EB 90 42 0F 5F 63 A7 CC 06 4D 08 E0 5C 5D E3 9A AF 0D 19 C7 78 B5 30 6C 9D E2 A4 CA 3A DD 64 FC 78 A8 E1 59 1F 67 97 C6 B2 0B 73 EB 9A 2D 75 07 7E CE 82 3B EC CF 3A 9F 98 4F C0 BA 98 69 D7 65 87 EA 53 90 18 01 BD 8B AB EB 40 74 9C 03 C4 92 3B 9A F5 3A DD 51 84 EF 72 48 71 DC B4 AA D5 95 AB BC 4B 97 70 4D FD EE DE 37 BD 33 0C DF 64 C5 55 2E ED A6 98 6A 88 28 8B F3 24 8D 73 00 DE 9E FC 78 15 4A AC E2 3F AD 93 4C 2F 88 48 34 DA F3 F7 FC B7 E7 39 F6 33 3E 5C 88 48 34 DA F3 F7 FC B7 E7 39 F6 33 3E 5C 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+
+
+ */
\ No newline at end of file
diff --git a/mirai-core/src/commonMain/kotlin/net.mamoe.mirai/BotHelper.kt b/mirai-core/src/commonMain/kotlin/net.mamoe.mirai/BotHelper.kt
index 55f805da3..107c23523 100644
--- a/mirai-core/src/commonMain/kotlin/net.mamoe.mirai/BotHelper.kt
+++ b/mirai-core/src/commonMain/kotlin/net.mamoe.mirai/BotHelper.kt
@@ -100,12 +100,7 @@ suspend inline fun Bot.alsoLogin(lazyMessageWhenLoginFailed: (LoginResult) -> St
  */
 @UseExperimental(ExperimentalContracts::class)
 @JvmOverloads
-suspend inline fun Bot.addFriend(id: UInt, lazyMessage: () -> String = { "" }, noinline lazyRemark: () -> String = { "" }): AddFriendResult {
-    contract {
-        callsInPlace(lazyMessage, InvocationKind.AT_MOST_ONCE)
-    }
-    return this.contacts.addFriend(id, lazyMessage, lazyRemark)
-}
+suspend inline fun Bot.addFriend(id: UInt, message: String? = null, remark: String? = null): AddFriendResult = contacts.addFriend(id, message, remark)
 
 /**
  * 取得机器人的 QQ 号
diff --git a/mirai-core/src/commonMain/kotlin/net.mamoe.mirai/network/protocol/tim/packet/PacketFactory.kt b/mirai-core/src/commonMain/kotlin/net.mamoe.mirai/network/protocol/tim/packet/PacketFactory.kt
index 9b11cb016..455f82a96 100644
--- a/mirai-core/src/commonMain/kotlin/net.mamoe.mirai/network/protocol/tim/packet/PacketFactory.kt
+++ b/mirai-core/src/commonMain/kotlin/net.mamoe.mirai/network/protocol/tim/packet/PacketFactory.kt
@@ -39,10 +39,6 @@ abstract class PacketFactory<out TPacket : Packet, TDecrypter : Decrypter>(val d
      */
     open val id: PacketId by lazy { annotatedId.id }
 
-    init {
-        @Suppress("LeakingThis")
-    }
-
     /**
      * **解码**服务器的回复数据包
      */
diff --git a/mirai-core/src/commonMain/kotlin/net.mamoe.mirai/network/protocol/tim/packet/action/AddContact.kt b/mirai-core/src/commonMain/kotlin/net.mamoe.mirai/network/protocol/tim/packet/action/AddContact.kt
index eeea5409e..14b2cd91f 100644
--- a/mirai-core/src/commonMain/kotlin/net.mamoe.mirai/network/protocol/tim/packet/action/AddContact.kt
+++ b/mirai-core/src/commonMain/kotlin/net.mamoe.mirai/network/protocol/tim/packet/action/AddContact.kt
@@ -206,11 +206,11 @@ object AddFriendPacket : SessionPacketFactory<AddFriendPacket.Response>() {
         /**
          * 验证消息
          */
-        message: String,
+        message: String?,
         /**
          * 备注名
          */
-        remark: String, //// TODO: 2019/11/15 无备注的情况
+        remark: String?, //// TODO: 2019/11/15 无备注的情况
         key: FriendAdditionKey
     ): OutgoingPacket = buildSessionPacket(bot, sessionKey) {
 
@@ -235,13 +235,13 @@ object AddFriendPacket : SessionPacketFactory<AddFriendPacket.Response>() {
         writeQQ(qq)
         writeByte(0)
         writeByte(0); writeShort(key.value.readRemaining.toShort()); writeFully(key.value)
-        writeByte(1); writeShortLVString(message)
+        writeByte(1); writeShortLVString(message ?: "")
         writeShortLVPacket {
             //00 01 00 01 00 00 00 1B E5 95 8A E5 95 8A E5 95 8A E5 95 8A E5 95 8A E5 95 8A E5 95 8A E5 95 8A E5 95 8A 00 05 00 00 00 00 01
 
             //00 01 00 01 00 00 00 00 00 05 00 00 00 00 01
             writeHex("00 01 00 01 00 00")// TODO: 2019/11/11 这里面或者下面那个hex可能包含分组信息. 这两次测试都是用的默认分组即我的好友
-            writeShortLVString(remark)
+            writeShortLVString(remark ?: "")
             writeHex("00 05 00 00 00 00 01")
         }
         writeByte(0)
diff --git a/mirai-core/src/commonMain/kotlin/net.mamoe.mirai/network/protocol/tim/packet/action/GroupMember.kt b/mirai-core/src/commonMain/kotlin/net.mamoe.mirai/network/protocol/tim/packet/action/GroupMember.kt
new file mode 100644
index 000000000..3e1e78192
--- /dev/null
+++ b/mirai-core/src/commonMain/kotlin/net.mamoe.mirai/network/protocol/tim/packet/action/GroupMember.kt
@@ -0,0 +1,6 @@
+package net.mamoe.mirai.network.protocol.tim.packet.action
+
+
+class MemberKickEvent
+
+//object MemberKickEventPacketFactory : SessionPacketFactory<
\ No newline at end of file