Yataro Tanigawa, a one-eyed hired assassin, impresses yakuza boss Gomyo Kiyoemon with his skill. Gomyo hires Tanigawa as his bodyguard, or yojimbo, to protect him during an inter-clan conflict. Tanigawa quickly rises in stature in the clan, but finds his boss's enemies almost overwhelming.

Shiba, a wandering ronin, encounters a band of peasants who have kidnapped the daughter of their dictatorial magistrate, in hopes of coercing from him a reduction in taxes. Shiba takes up their fight, joined by two renegades from the magistrate's guard, Sakura and Kikyo. The three outlaws find themselves in a battle to the death.

Kumokiri Nizaemon, a former samurai warrior, has abandoned his class to become the leader of a gang of thieves. He leads his outlaws in an attempt to rob the castle of his former clan.

Before leaving prison, Oida uncomfortably enters into an agreement with his cell mate: in exchange for a half-share of 30,000,000 yen, he is to assassinate three strangers given to him on a list. However, upon meeting his first potential victim, Oida has second thoughts. Yet, even as he tries to back out, the body count starts climbing. Oida must now try to alert the people on his list of their impending danger, and find out why they are being targeted in the first place.

Set during the last days of the Tokugawa (Edo) Period, Moeyo-ken tells the story of Hijikata Toshizo and the Shinsengumi. Hijikata Toshizo is a samurai eager to test his skills and sword and make his first kill. The dojo he belongs to practices the Tennen Rishin style and teaches this to farmers. Not considered real samurai by other dojo's, they receive a request for a duel by a rival dojo practicing the Kogen Itto style. Sohaku Rokusha, a teacher there, challenges them and fights with Hijikata Toshizo. The outcome of the fight creates a deadly animosity between them that lasts through the ages.

Chronichles the story of the Forty-seven Ronin.

Executive management of a major Tokyo construction company are getting bumped off one after another. It seems obvious that it is a former partner of the company with a long-standing grudge who is responsible, but he died in the first ten minutes of the movie. Or did he? This may aptly be described as a giallo-noir for the unrelenting string of murders by a mystery man and the black-and-white gritty urban setting.