Rikio Ishikawa is a brutal street thug who is drawn into the powerful Kawada gang in 1946 Tokyo. His insubordination and rebelliousness encourage him to start his own Yakuza family, but he decides the easiest way would be to challenge his own Godfather, whom he brutally attacks. This disrespect to his boss brings the ultimate form of disgrace upon himself and his 'family'. For his own safety, he surrenders to the police and spends more than a year in jail. But Ishikawa's dishonourable actions have set him against the entire world, as any Yakuza gangster would win favour by killing him. Barred from joining any Tokyo gang for ten years, he flees to Osaka, where he plans his return to Tokyo only a year later so that he can begin his violent and drug-fuelled rise to power.