如果要重新起号，我想你肯定要清理一下缓存什么的。
PC版
先找到游戏安装路径下
C:\Program Files (x86)\Steam\steamapps\common\MIR4\MirMobile\SaveData\Saved
删除以下内容。
\Logs\
\webcache\
\Config\CrashReportClient
\SaveGames\AccountLocalSave.sav
\SaveGames\InAppPurchaseLocalSave.sav
\SaveGames\CharLocalSave_2003575173.sav
\SaveGames\ChattingLocalSave_2003575173.sav
安卓android端路径为
/sdcard/Andoid/data/com.wemade.mir4global/files/Saved