Repeatedly beat to a pulp by gamblers, cops, and gangsters, lone wolf Shoji Yamanaka finally finds a home as a Muraoka family hitman and falls in love with boss Muraoka's niece. Meanwhile, the ambitions of mad dog Katsutoshi Otomo draws our series' hero, Shozo Hirono, and the other yakuza into a new round of bloodshed.

This is the story of a vagrant samurai – the solitary, savage and scrupulous Kiba – who arrives at a village to defend a beautiful, blind woman against a sinister plot. Her assailants then send against him another samurai, named Sana, who is without scruples. The fight between them will become personal, for the honor and love of the blind woman.