Black Market Emperor: Silver and Gold 5 - Hereditary Homicide (1996)

A Kamui family who governs N prefecture and exerts its power on the central political and business world. The mighty power was only allowed to be inherited by the "patriarch". But now, over the patriarchal power, the current patriarch Hidemine and his four sons are in a fierce conflict. In the presence of his guardian, Kiyoshi Nakajo, Hidemine gathered his sons together. However, the discussion broke down. The sons seeking the extinction of the patriarchal power finally turned their muzzle to their father, Hidemine!