Sword of Destiny (1981)

Former Ometsuke, Oseki Jutayu, has handed over the family headship to his son Tsurunojo and is living a carefree life. One day, Tsurunojo dies in a duel. Behind this is a trap set by former treasurer Ibe Tatewaki and his son Denshichiro, whom Jutayu had previously accused of corruption with the government-supplied merchant Yamashiroya, that forced Tatewaki to resign. Enraged, Jutayu takes action to avenge his son’s death.