Three schoolgirls are infatuated with a yakuza, Katsuta, of the Izu Clan. They meet another yakuza, `Diamond` Fuyu, of the rival Yoshida clan. As he gets a tattoo, two of the girls become squeamish and run off but Hanako, the best friend of the daughter of Sota Izu, boss of the Izu clan, stays to watch. She is intrigued with the yakuza .....