Gambling Code and Feuds
It is the first Toei yakuza film directed by Akinori Matsuo, who was active in Nikkatsu action movies. It is a local yakuza movie made following Okinawa Yakuza War (1976) and Hokuriku Proxy War (1977). The film depicts the war between a storied yakuza killer (Hiroki Matsukata) and the largest organized crime group in the Kansai region, which plans to advance into the Kanto region.