Fujioka Academy's cross-dressing contest is a major part of the school's cultural festival, and it never fails to garner the attention of the entire student body. Each club may enter a single participant and the winner gets three million yen added to their club's budget. As such, there is nothing the clubs won't do to achieve victory!

Unwillingly representing the karate club for this year's contest is Kaoru Aoba. Having, ironically, joined the club in an effort to become more manly—he will have to face-off against last year's winner, Yuu Origami. Before the competition, however, Kaoru runs away, overwhelmed by what's being asked of him and reluctant to pose as a girl. It is at that point that he meets a beautiful, dark-haired girl named Yuu, who for some reason shows interest in him.