The Kingdom of Jirocho 1 (1963)

Reiji Kikukawa, who has a strong sense of justice, graduated from the police academy with the lowest score ever. He becomes a police constable, but is suddenly fired by the Police Chief due to "disciplinary" issues. In actuality, the firing is part of a carefully orchestrated plan to set him up as an undercover cop in the Yakuza.

A lethal assassin for a secret Chinese organisation, who sheds tears of regret each time he kills, is seen swiftly and mercilessly executing three Yakuza gangsters by a beautiful artist. She is captivated by the grace of his kill and later falls in love with him. An intense power struggle for the leadership of the Yakuza Clans ensues as they seek vengeance for the death of their leader.

A barkeeper saves a Yakuza boss' life and thus makes his way up in the organization. However, his fear of nothing soon causes problems.

Two New York cops get involved in a gang war between members of the Yakuza, the Japanese Mafia. They arrest one of their killers and are ordered to escort him back to Japan. However, in Japan he manages to escape, and as they try to track him down, they get deeper and deeper into the Japanese Mafia scene and they have to learn that they can only win by playing the game—the Japanese way.

A self-destructive man becomes a powerful member of the yakuza but quickly loses his self-control. Based on the true story of Rikio Ishikawa.

Ryūichi and his small gang of Triad vie for control of the Japanese underworld in a crime-ridden Shinjuku quarter while Detective Jojima tries to bring it down.

When a tough yakuza gangster is betrayed by his bosses, it means all out war. Bodies pile up as he takes out everyone in his way to the top in a brutal quest for revenge.

As the police launch a full-scale crackdown on organized crime, it ignites a national yakuza struggle between the Sanno of the East and Hanabishi of the West. What started as an internal strife in Outrage has now become a nationwide war in Outrage Beyond.

Five years after the all-out war between the Sanno and Hanabishi crime families, former yakuza boss Otomo works in South Korea for Mr. Chang, a noted fixer. When tensions rise between Chang and the Hanabishi, and Chang's life is endangered, Otomo returns to Japan to settle things once and for all.

In postwar Tokyo, a blunt, alcohol-soaked doctor diagnoses a swaggering young yakuza with tuberculosis, forging an uneasy bond that’s tested when the gangster’s ruthless former boss returns and drags him back toward the swampy underworld he can’t escape.