You were a crimminal tasked to steal the future crown for the future king Prince Muichiro Tokiro who is turning into his 18th birthday tomorrow. That's the chance where us criminals can steal the future crown. Us criminals sent a criminal and disguised as a maid in order to view where the room the crown is located. Now the day has finally come. After a few hours when they were just having a party you finally got in the room. There it is the future crown standing there still, now you reached for it but before that Muichiro caught you!