diff --git a/examples/multi_login.rs b/examples/multi_login.rs
index 122a3d2..39aecdf 100644
--- a/examples/multi_login.rs
+++ b/examples/multi_login.rs
@@ -12,7 +12,7 @@ async fn main() {
             .with(console_layer)
             .with(
                 tracing_subscriber::fmt::layer()
-                    .with_filter(tracing_subscriber::EnvFilter::new("debug")),
+                    .with_filter(tracing_subscriber::EnvFilter::new("trace")),
             )
             .init();
         tracing::info!("tokio-tracing initialized.");
diff --git a/mania/src/core/business.rs b/mania/src/core/business.rs
index a754e3c..d25d659 100644
--- a/mania/src/core/business.rs
+++ b/mania/src/core/business.rs
@@ -77,7 +77,7 @@ static LOGIC_MAP: Lazy<LogicHandlerMap> = Lazy::new(|| {
         map.entry(tid)
             .or_insert_with(Vec::new)
             .push(item.event_handle_fn);
-        tracing::debug!(
+        tracing::trace!(
             "Registered event handler {:?} for type: {:?}",
             item.event_handle_fn,
             tid
@@ -93,12 +93,12 @@ pub async fn dispatch_logic(
 ) -> &dyn ServerEvent {
     let tid = event.as_any().type_id();
     if let Some(fns) = LOGIC_MAP.get(&tid) {
-        tracing::debug!("[{}] Found {} handlers for {:?}.", flow, fns.len(), event);
+        tracing::trace!("[{}] Found {} handlers for {:?}.", flow, fns.len(), event);
         for handle_fn in fns.iter() {
             handle_fn(event, handle.to_owned(), flow).await;
         }
     } else {
-        tracing::debug!("[{}] No handler found for {:?}", flow, event);
+        tracing::trace!("[{}] No handler found for {:?}", flow, event);
     }
     event
 }
@@ -153,6 +153,8 @@ impl Business {
                         continue;
                     }
                 };
+                tracing::debug!("Incoming packet: {}", packet.command());
+                tracing::trace!("Full: {:?}", packet);
                 let handle = self.handle.clone();
                 tokio::spawn(async move {
                     if let Err(e) = handle.dispatch_sso_packet(packet).await {
@@ -285,12 +287,13 @@ impl BusinessHandle {
     }
 
     async fn post_packet(&self, packet: SsoPacket) -> BusinessResult<()> {
+        tracing::debug!("Outgoing packet: {}", packet.command());
+        tracing::trace!("Full: {:?}", packet);
         let packet = packet.build(&self.context);
         Ok(self.sender.load().send(packet).await?)
     }
 
     async fn send_packet(&self, packet: SsoPacket) -> BusinessResult<CEParse> {
-        tracing::debug!("sending packet: {:?}", packet);
         let sequence = packet.sequence();
         let (tx, rx) = oneshot::channel::<BusinessResult<CEParse>>();
         self.pending_requests.insert(sequence, tx);
diff --git a/mania/src/core/business/messaging_logic.rs b/mania/src/core/business/messaging_logic.rs
index fad66ed..8335965 100644
--- a/mania/src/core/business/messaging_logic.rs
+++ b/mania/src/core/business/messaging_logic.rs
@@ -20,7 +20,7 @@ async fn messaging_logic(
     handle: Arc<BusinessHandle>,
     flow: LogicFlow,
 ) -> &dyn ServerEvent {
-    tracing::debug!("[{}] Handling event: {:?}", flow, event);
+    tracing::trace!("[{}] Handling event: {:?}", flow, event);
     match flow {
         LogicFlow::InComing => messaging_logic_incoming(event, handle).await,
         LogicFlow::OutGoing => messaging_logic_outgoing(event, handle).await,
diff --git a/mania/src/core/business/wt_logic.rs b/mania/src/core/business/wt_logic.rs
index e616b28..d1cb709 100644
--- a/mania/src/core/business/wt_logic.rs
+++ b/mania/src/core/business/wt_logic.rs
@@ -13,7 +13,6 @@ async fn messaging_logic(
     handle: Arc<BusinessHandle>,
     flow: LogicFlow,
 ) -> &dyn ServerEvent {
-    tracing::debug!("[{}] Handling event: {:?}", flow, event);
     match flow {
         LogicFlow::InComing => messaging_logic_incoming(event, handle).await,
         LogicFlow::OutGoing => event,
diff --git a/mania/src/core/event.rs b/mania/src/core/event.rs
index 964347b..cf129ae 100644
--- a/mania/src/core/event.rs
+++ b/mania/src/core/event.rs
@@ -73,11 +73,6 @@ static EVENT_MAP: Lazy<EventMap> = Lazy::new(|| {
 pub async fn resolve_event(packet: SsoPacket, context: &Arc<Context>) -> CEParseResult {
     // Lagrange.Core.Internal.Context.ServiceContext.ResolveEventByPacket
     let payload = PacketReader::new(packet.payload()).section(|p| p.bytes());
-    tracing::debug!(
-        "receive SSO event: {}, payload: {:?}",
-        packet.command(),
-        hex::encode(&payload)
-    );
     let Some(parse) = EVENT_MAP.get(packet.command()) else {
         return Err(EventError::UnsupportedEvent(packet.command().to_string()));
     };
diff --git a/mania/src/core/socket.rs b/mania/src/core/socket.rs
index 2d2d6e1..5282749 100644
--- a/mania/src/core/socket.rs
+++ b/mania/src/core/socket.rs
@@ -4,7 +4,6 @@ use std::sync::{Arc, Weak};
 
 use byteorder::{BigEndian, ByteOrder};
 use bytes::{Bytes, BytesMut};
-use log::debug;
 use tokio::io::{AsyncReadExt, AsyncWriteExt};
 use tokio::net::tcp::{OwnedReadHalf, OwnedWriteHalf};
 use tokio::sync::mpsc::{Receiver, Sender};
@@ -103,7 +102,7 @@ async fn recv_loop(mut stream: OwnedReadHalf, channel: Sender<Bytes>) -> Result<
         buffer.resize(packet_length as usize, 0);
         BigEndian::write_u32(&mut buffer, packet_length);
         stream.read_exact(&mut buffer[4..]).await?;
-        debug!("Received packet (len= {:?})", buffer.len());
+        tracing::trace!("Received packet (len= {:?})", buffer.len());
 
         if channel.send(buffer.split().freeze()).await.is_err() {
             return Ok(()); // dropped
diff --git a/mania/src/core/tlv/t106.rs b/mania/src/core/tlv/t106.rs
index 2824203..54b87c8 100644
--- a/mania/src/core/tlv/t106.rs
+++ b/mania/src/core/tlv/t106.rs
@@ -36,7 +36,6 @@ impl TlvSer for T106 {
     }
 
     fn serialize(&self, p: PacketBuilder) -> PacketBuilder {
-        tracing::warn!("T106: &self.temp = {}", hex::encode(&self.temp));
         p.tlv(0x106, |p| p.bytes(&self.temp))
     }
 }