diff --git a/README.md b/README.md
index dedd06a11..2e5771483 100644
--- a/README.md
+++ b/README.md
@@ -3,7 +3,7 @@
 一个以<b>TIM QQ协议</b>驱动的JAVA(+Kotlin) <b>全开源</b> QQ机器人服务端核心<br>
 不受由于<b>SMARTQQ</b>关停的影响<br>
 项目处于快速开发阶段<br>
-由于是学生, 无法每日更新<br>
+由于是学生, 无法每日更新<del>(24岁 是学生</del><br>
 一切开发旨在学习, 请勿用于非法用途<br>
 
 <br>
diff --git a/mirai-core/src/main/java/net/mamoe/mirai/MiraiServer.java b/mirai-core/src/main/java/net/mamoe/mirai/MiraiServer.java
index fc6088492..a69d5b861 100644
--- a/mirai-core/src/main/java/net/mamoe/mirai/MiraiServer.java
+++ b/mirai-core/src/main/java/net/mamoe/mirai/MiraiServer.java
@@ -9,6 +9,7 @@ import net.mamoe.mirai.network.Protocol;
 import net.mamoe.mirai.network.Robot;
 import net.mamoe.mirai.task.MiraiTaskManager;
 import net.mamoe.mirai.utils.LoggerTextFormat;
+import net.mamoe.mirai.utils.MiraiLogger;
 import net.mamoe.mirai.utils.config.MiraiConfig;
 import net.mamoe.mirai.utils.config.MiraiMapSection;
 import org.apache.logging.log4j.Logger;
@@ -17,7 +18,6 @@ import java.io.File;
 import java.io.IOException;
 import java.util.Scanner;
 
-@Log4j2
 public class MiraiServer {
     @Getter
     private static MiraiServer instance;
@@ -40,11 +40,11 @@ public class MiraiServer {
     @Getter
     MiraiTaskManager taskManager;
 
+    @Getter
+    MiraiLogger logger;
+
     MiraiConfig setting;
 
-    public static Logger getLogger() {
-        return log;
-    }
 
     protected MiraiServer(){
         instance = this;
@@ -60,6 +60,7 @@ public class MiraiServer {
             this.getEventManager().boardcastEvent(new ServerDisableEvent());
             getLogger().info(LoggerTextFormat.SKY_BLUE + "Data have been saved");
         }
+
     }
 
 
@@ -67,6 +68,7 @@ public class MiraiServer {
         this.parentFolder = new File(System.getProperty("user.dir"));
         this.unix = !System.getProperties().getProperty("os.name").toUpperCase().contains("WINDOWS");
 
+        this.logger = MiraiLogger.INSTANCE;
         this.eventManager = MiraiEventManager.getInstance();
         this.taskManager = MiraiTaskManager.getInstance();
 
diff --git a/mirai-core/src/main/java/net/mamoe/mirai/event/MiraiEventManager.java b/mirai-core/src/main/java/net/mamoe/mirai/event/MiraiEventManager.java
index ce6a04545..cc7df4418 100644
--- a/mirai-core/src/main/java/net/mamoe/mirai/event/MiraiEventManager.java
+++ b/mirai-core/src/main/java/net/mamoe/mirai/event/MiraiEventManager.java
@@ -25,49 +25,61 @@ public class MiraiEventManager {
     Lock hooksLock = new ReentrantLock();
     private Map<Class<? extends MiraiEvent>, List<MiraiEventHook<? extends MiraiEvent>>> hooks = new HashMap<>();
 
-    public <D extends MiraiEvent> void registerUntil(MiraiEventHook<D> hook, Predicate<D> toRemove){
+    public <D extends MiraiEvent> void hookUntil(MiraiEventHook<D> hook, Predicate<D> toRemove){
         hooksLock.lock();
         hooks.putIfAbsent(hook.getEventClass(),new ArrayList<>());
         hooks.get(hook.getEventClass()).add(hook.setValidUntil(toRemove));
         hooksLock.unlock();
     }
 
-    public <D extends MiraiEvent> void registerWhile(MiraiEventHook<D> hook, Predicate<D> toKeep){
+    public <D extends MiraiEvent> void hookWhile(MiraiEventHook<D> hook, Predicate<D> toKeep){
         hooksLock.lock();
         hooks.putIfAbsent(hook.getEventClass(),new ArrayList<>());
         hooks.get(hook.getEventClass()).add(hook.setValidWhile(toKeep));
         hooksLock.unlock();
     }
 
-    public <D extends MiraiEvent> void registerOnce(MiraiEventHook<D> hook){
-        this.registerUntil(hook,(a) -> true);
+    public <D extends MiraiEvent> void hookOnce(MiraiEventHook<D> hook){
+        this.hookUntil(hook,(a) -> true);
     }
 
-    public <D extends MiraiEvent> void register(MiraiEventHook<D> hook){
-        this.registerUntil(hook,(a) -> false);
+    public <D extends MiraiEvent> void registerHook(MiraiEventHook<D> hook){
+        this.hookUntil(hook,(a) -> false);
     }
 
+
+    /**
+     * 不推荐onEvent
+     * 非线程安全
+     * 不能保证下一个 D event发生时handler就位
+     * @author NaturalHG Aug27
+     */
+
+    @Deprecated
     public <D extends MiraiEvent> MiraiEventHook<D> onEvent(Class<D> event){
         MiraiEventHook<D> hook = new MiraiEventHook<>(event);
-        this.register(hook);
+        this.registerHook(hook);
         return hook;
     }
 
+    @Deprecated
     public <D extends MiraiEvent> MiraiEventHook<D> onEventOnce(Class<D> event){
         MiraiEventHook<D> hook = new MiraiEventHook<>(event);
-        this.registerOnce(hook);
+        this.hookOnce(hook);
         return hook;
     }
 
+    @Deprecated
     public <D extends MiraiEvent> MiraiEventHook<D> onEventUntil(Class<D> event, Predicate<D> toRemove){
         MiraiEventHook<D> hook = new MiraiEventHook<>(event);
-        this.registerUntil(hook,toRemove);
+        this.hookUntil(hook,toRemove);
         return hook;
     }
 
+    @Deprecated
     public <D extends MiraiEvent> MiraiEventHook<D> onEventWhile(Class<D> event, Predicate<D> toKeep){
         MiraiEventHook<D> hook = new MiraiEventHook<>(event);
-        this.registerWhile(hook,toKeep);
+        this.hookWhile(hook,toKeep);
         return hook;
     }
 
diff --git a/mirai-core/src/main/java/net/mamoe/mirai/network/Robot.kt b/mirai-core/src/main/java/net/mamoe/mirai/network/Robot.kt
index 5316183be..5e94799e9 100644
--- a/mirai-core/src/main/java/net/mamoe/mirai/network/Robot.kt
+++ b/mirai-core/src/main/java/net/mamoe/mirai/network/Robot.kt
@@ -14,6 +14,7 @@ import net.mamoe.mirai.network.packet.Packet
 import net.mamoe.mirai.network.packet.client.Client0825ResponsePacket
 import net.mamoe.mirai.network.packet.server.Server0825Packet
 import net.mamoe.mirai.network.packet.server.ServerPacket
+import net.mamoe.mirai.utils.MiraiLogger
 import java.net.InetSocketAddress
 
 /**
@@ -22,7 +23,7 @@ import java.net.InetSocketAddress
  * @author Him188moe @ Mirai Project
  */
 class Robot(val number: Long) {
-    private lateinit var ctx: ChannelHandlerContext;
+    private lateinit var ctx: ChannelHandlerContext
 
     internal fun onPacketReceived(packet: Packet) {
         if (packet !is ServerPacket) {
@@ -56,7 +57,7 @@ class Robot(val number: Long) {
                             ch.pipeline().addLast(object : SimpleChannelInboundHandler<ByteArray>() {
                                 override fun channelRead0(ctx: ChannelHandlerContext, bytes: ByteArray) {
                                     try {
-                                        this@Robot.ctx = ctx;
+                                        this@Robot.ctx = ctx
                                         /*val remaining = Reader.read(bytes);
                                         if (Reader.isPacketAvailable()) {
                                             robot.onPacketReceived(Reader.toServerPacket())
@@ -65,7 +66,7 @@ class Robot(val number: Long) {
                                         }*/
                                         this@Robot.onPacketReceived(ServerPacket.ofByteArray(bytes))
                                     } catch (e: Exception) {
-                                        MiraiServer.getLogger().catching(e)
+                                        MiraiLogger.catching(e)
                                     }
                                 }
 
@@ -74,7 +75,7 @@ class Robot(val number: Long) {
                                 }
 
                                 override fun exceptionCaught(ctx: ChannelHandlerContext, cause: Throwable) {
-                                    MiraiServer.getLogger().catching(cause)
+                                    MiraiLogger.catching(cause)
                                 }
                             })
                         }
@@ -102,10 +103,10 @@ class Robot(val number: Long) {
          */
         fun read(bytes: ByteArray): ByteArray? {
             checkNotNull(this.length)
-            val needSize = length!! - this.bytes.size;//How many bytes we need
+            val needSize = length!! - this.bytes.size//How many bytes we need
             if (needSize == bytes.size || needSize > bytes.size) {
                 this.bytes += bytes
-                return null;
+                return null
             }
 
             //We got more than we need
diff --git a/mirai-core/src/main/java/net/mamoe/mirai/utils/MiraiLogger.kt b/mirai-core/src/main/java/net/mamoe/mirai/utils/MiraiLogger.kt
new file mode 100644
index 000000000..18ad743a6
--- /dev/null
+++ b/mirai-core/src/main/java/net/mamoe/mirai/utils/MiraiLogger.kt
@@ -0,0 +1,24 @@
+package net.mamoe.mirai.utils
+
+import java.text.SimpleDateFormat
+import java.util.*
+
+/**
+ * used to replace old logger
+ */
+object MiraiLogger{
+    fun info(o: Any) {
+        this.print(o.toString())
+    }
+
+    fun catching(e:Throwable){
+        this.print(e.message)
+        this.print(e.localizedMessage)
+        this.print(e.cause.toString())
+    }
+
+    private fun print(value:String?){
+        val s = SimpleDateFormat("MM-dd HH:mm:ss").format(Date())
+        System.out.println(LoggerTextFormat.BLUE.toString() + "[Mirai] $s : $value")
+    }
+}
\ No newline at end of file