Shirô Ôhama

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.

Akemi is a dragon tattooed leader of the Tachibana Yakuza clan. In a duel with a rival gang Akemi slashes the eyes of an opponent and a black cat appears, to lap the blood from the gushing wound. The cat along with the eye-victim go on to pursue Akemi’s gang in revenge, leaving a trail of dead Yakuza girls, their dragon tattoos skinned from their bodies.

Rivalry between two young gangster groups who seek to extend their influence.

Goro (Tetsuya Watari) wants to put his dark past behind. He heads to Hirosaki City to offer his condolences to Yumeko and to reunite with Yukiko (Chieko Matsubara), but finds that Yumeko is fatally ill. Although Yukiko was taking care of her, she is pressed for money. Goro wants to help and knows that there is only one way to come up with fast money.

Several high-school friends spend their final summer together indulging in sex and leisure; their halcyon days are soon coming to an end.

Goro has always been a lone wolf. When he arrives at an industrial city in Keihin, there is certain restlessness in the air. The Iriezaki family and the Kanto Touyu-kai were in the midst of a territorial dispute. Goro was quick to notice, but had no intent to take sides. At a department store nearby, he sees an elevator lady being harassed by a couple of hoodlums. Goro decides to intervene. Unbeknownst to him, the hoodlums are Touyu-kai members – and the girl has strong ties with the opposing family.

A young reporter, Kotaro Rai, is on the trail of a ring of gem thieves. But Rai is faced with an evil that threatens all of Asia, the Zensei Majin who had been in disguise. Luckily, the man's life is saved by a good spirit named Diamond Eye, who had appeared from one of the stolen diamond rings. From that day on the diamond hero entrusted the ring in Rai, and when he's in need of help, Diamond Eye would appear and protect him.