Clean old key. If key don't work, please allow me to delete

記得關注我們的「Steam 鑑賞家」，有更多抽獎在那裡！
Don't need to say Thanks, just Follow our Steam Curator.
http://store.steampowered.com/curator/31880997/

Or

Join our Public Group
https://steamcommunity.com/groups/notes_of_game_public