Tomoko Aki

Emerging from a stint in prison, yakuza lieutenant Sumukawa discovers that his gang has disintegrated. An ambitious type, he quickly hooks up with another gang who promise him a prominent position if he helps them deal with a rival family. But bonds are made to be broken, and pledges of loyalty soon give way to competition, betrayal and — naturally — retaliation.

Motozo Imamura, a.k.a. Gen, grew up in an upper-class family, but he never went to school and spent his days playing around. One day, he walked into an orgy of male-female sexual misconduct, and when he dropped off Roze, whom he had met there, he saw her sister, Kaoru, forgetting her impurity. One day, he went to an orgy where he met Roze, and he could not forget the purity of her older sister, Kaoru. A few days later, Gen went to the party again and was mistaken for the boss's brother.

The group led by Teruko was the most famous in the port city of Yokohama. One day, however, a group claiming the same name as Teruko and her group appeared and began extorting them. The group was led by Rosa, who had come from Hayama. Teruko and the others were taken in by Detective Jitsusei on suspicion of extortion, and were even doused with oil. What saved the day was a witness, a runaway daughter named Toshie. Toshie is a half-sister.

Chie (Sanae Ōhori), newly arrived in Tokyo, saves her friend from school, Mari (Annu Mari), from a suicide attempt. The two girls become close, eventually leading to a lesbian relationship. Their affair drifts into sadism and involvement with a bizarre sex cult.

Hanamura, widely known in gangland a professional trouble shooter has the sign of the Jack tattooed on his chest. His follower is his sworn partner Kurahara. They attempt to help the Towada-Gumi gang against its rival group the Kamioka-Gumi which is seeking the chance to conquer the Towada-Gumi in collusion with Noda, a big shot in the town operating a real estate firm.

Former students of the notorious Harenchi Gakuen college open a new school for dissident youths after their former school is ruined by disputes.

Japanese crime film