diff --git a/main.lua b/main.lua
index dc8c9faf..e8e3f144 100644
--- a/main.lua
+++ b/main.lua
@@ -63,6 +63,7 @@ FIELD[1]=newBoard()--Initialize field[1]
 NET=		require"parts.net"
 AIBUILDER=	require"parts.AITemplate"
 FREEROW=	require"parts.freeRow"
+USERS=		require"parts.users"
 
 TEXTURE=	require"parts.texture"
 SKIN=		require"parts.skin"
diff --git a/parts/gametoolfunc.lua b/parts/gametoolfunc.lua
index 44f3b301..60568f41 100644
--- a/parts/gametoolfunc.lua
+++ b/parts/gametoolfunc.lua
@@ -973,7 +973,7 @@ do--function saveRecording()
 			os.date("%Y/%m/%d %A %H:%M:%S\n")..
 			GAME.curModeName.."\n"..
 			VERSION.string.."\n"..
-			(USER.username or"Player")
+			"Local Player"
 		local fileBody=
 			GAME.seed.."\n"..
 			JSON.encode(GAME.setting).."\n"..
@@ -1021,7 +1021,7 @@ do--function drawFWM()
 		local t=TIME()
 		setFont(25)
 		gc_setColor(1,1,1,.2+.1*(sin(3*t)+sin(2.6*t)))
-		mStr(m[SETTING.lang]or m[1],240,60+26*sin(t))
+		mStr(m[_G["\83\69\84\84\73\78\71"]["\108\97\110\103"]or m[1]],240,60+26*sin(t))
 	end
 end
 function drawWarning()
diff --git a/parts/globalTables.lua b/parts/globalTables.lua
index eabb78ae..04e7c4fc 100644
--- a/parts/globalTables.lua
+++ b/parts/globalTables.lua
@@ -222,14 +222,12 @@ GAME={--Global game data
 RANKS=FILE.load("conf/unlock")or{sprint_10l=0}--Ranks of modes
 USER=FILE.load("conf/user")or{--User infomation
 	--Network infos
-	username=false,
 	uid=false,
 	authToken=false,
 
 	--Local data
 	xp=0,lv=1,
 }
-USERS=FILE.load("conf/users")or{}
 SETTING={--Settings
 	--Tuning
 	das=10,arr=2,dascut=0,
diff --git a/parts/net.lua b/parts/net.lua
index a39fb247..9863a2fe 100644
--- a/parts/net.lua
+++ b/parts/net.lua
@@ -145,30 +145,11 @@ function NET.getUserInfo(id,ifDetail)
 	WS.send("user",JSON.encode{
 		action=1,
 		data={
-			id=id or USER.uid,
+			id=id,
 			detailed=ifDetail or false,
 		},
 	})
 end
-function NET.storeUserInfo(d)
-	local user=USERS[d.uid]
-	if not user then
-		user={}
-		USERS[d.uid]=user
-	end
-	user.uid=d.uid
-	user.username=d.username
-	user.motto=d.motto
-	user.avatar=d.avatar
-
-	--Get own name
-	if d.uid==USER.uid then
-		USER.username=d.username
-		FILE.save(USER,"conf/user","q")
-	end
-
-	-- FILE.save(USERS,"conf/users")
-end
 
 --Room
 function NET.fetchRoom()
@@ -316,14 +297,14 @@ function NET.updateWS_user()
 							LOG.print(text.loginSuccessed)
 
 							--Get self infos
-							NET.getUserInfo(USER.uid)
+							NET.getUserInfo()
 							NET.unlock("wsc_user")
 						elseif res.action==0 then--Get accessToken
 							NET.accessToken=res.accessToken
 							LOG.print(text.accessSuccessed)
 							NET.wsconn_play()
 						elseif res.action==1 then--Get userInfo
-							NET.storeUserInfo(res.data)
+							USERS.updateUserData(res.data)
 						end
 					else
 						WS.alert("user")
@@ -490,9 +471,8 @@ function NET.updateWS_stream()
 						elseif res.action==3 then--Player leave
 							--?
 						elseif res.action==4 then--Player died
-							local uid=res.data.uid
 							for _,P in next,PLY_ALIVE do
-								if P.uid==uid then
+								if P.uid==d.uid then
 									P:lose(true)
 									break
 								end
diff --git a/parts/scenes/net_menu.lua b/parts/scenes/net_menu.lua
index cee6519e..ff8d9cf2 100644
--- a/parts/scenes/net_menu.lua
+++ b/parts/scenes/net_menu.lua
@@ -20,7 +20,6 @@ scene.widgetList={
 				if USER.uid then
 					NET.wsclose_play()
 					NET.wsclose_user()
-					USER.username=false
 					USER.uid=false
 					USER.authToken=false
 					FILE.save(USER,"conf/user","q")
diff --git a/parts/scenes/net_rooms.lua b/parts/scenes/net_rooms.lua
index 0f38b9bf..4c823fdc 100644
--- a/parts/scenes/net_rooms.lua
+++ b/parts/scenes/net_rooms.lua
@@ -38,7 +38,7 @@ function scene.keyDown(k)
 					kb.isDown("4")and"r99"or
 					kb.isDown("5")and"unlimited"
 				)or"solo",
-				(USER.username or"???").."'s room"
+				(USERS.getName(USER.uid)or"???").."'s room"
 			)
 			lastCreateRoomTime=TIME()
 		else
diff --git a/parts/users.lua b/parts/users.lua
new file mode 100644
index 00000000..dc9161d6
--- /dev/null
+++ b/parts/users.lua
@@ -0,0 +1,81 @@
+local loadImage=love.graphics.newImage
+local fs=love.filesystem
+
+local ins=table.insert
+
+local texture_noImage=DOGC{32,32,
+	{"rgb",0,0,0},
+	{"rect","fill",0,0,32,32},
+	{"rgb",1,1,1},
+	{"wid",3},
+	{"line",0,0,31,31},
+	{"line",0,31,31,0},
+}
+
+local function _getEmptyUser()
+	return{
+		uid=-1,
+		username="[X]",
+		motto="Techmino haowan",
+		hash=false,
+		new=false,
+	}
+end
+
+local imgReqSeq={}
+local db_img={}
+local db=setmetatable({},{__index=function(self,k)
+	local file="cache/user"..k..".dat"
+	if fs.getInfo(file)then
+		rawset(self,k,JSON.decode(fs.read(file)))
+		if fs.getInfo(self[k].hash)then
+			db_img[k].avatar=loadImage(self[k].hash)
+		end
+	else
+		rawset(self,k,_getEmptyUser())
+	end
+	return self[k]
+end})
+
+local USERS={}
+
+function USERS.updateUserData(data)
+	local uid=data.uid
+	db[uid].username=data.username
+	db[uid].motto=data.motto
+	fs.write("cache/user"..uid..".dat",JSON.encode{
+		username=data.username,
+		motto=data.motto,
+		hash=data.hash,
+	})
+	if data.avatar then
+		fs.write("cache/"..data.hash,data.avatar:sub(data.avatar:find","+1))
+		db_img[uid].avatar=loadImage("cache/"..data.hash)
+		db[uid].hash=data.hash
+		db[uid].new=true
+	end
+	needSave=true
+end
+
+function USERS.getUsername(uid)return db[uid].username end
+function USERS.getMotto(uid)return db[uid].motto end
+function USERS.getAvatar(uid)
+	if db_img[uid]then
+		return db_img[uid]
+	else
+		if not db[uid].new then
+			ins(imgReqSeq,uid)
+			db[uid].new=true
+		end
+		return texture_noImage
+	end
+end
+
+function USERS.update()
+	if #imgReqSeq>0 and WS.status("user")=="running"then
+		NET.getUserInfo(imgReqSeq[#imgReqSeq],true)
+		imgReqSeq[#imgReqSeq]=nil
+	end
+end
+
+return USERS
\ No newline at end of file