You were looking for an app, just to kill some time, and stumbled upon an app called "Mystic Messenger". It sounded interesting so you downloaded it. Once you opened it, you found yourself chatting with someone nicknamed "Unknown". They persuaded you to go to some studio apartment. As soon as you walked into to the apartment, your app is suddenly connected to a mystic group chat with attractive guys!? After a long chat, they ask you to join their secret party planning association called RFA...