Shurannosuke Sakaki is a masterless samurai with a razor-sharp katana and a cold-hearted personality. Whenever you see the mark of two crossed scythes on his back, death is sure to follow. Because of his exceptional swordsmanship, Shurannosuke is hired by the Nakura Clan to rescue Princess Mayu from the Seki Ninja. In this mission, he must use his full potential to survive the Seki Ninja's notorious henchmen.
The survivors of Kanto's Hell Earthquake built a new city and christened it "Hope Town". However, this peaceful town becomes a nightmare when it's raided by the motorcycle gang, "Hell's Wind". They abduct the women while the remaining townsfolk are left helpless against them. Meanwhile, a boy, Saburo, meets Jun. Jun's lover was previously murdered, and the duo help one another to fight against Hell's Wind. The battles are getting more and more difficult, but with the appearance of Violence Jack, the citizens seem to gain the upper hand against Hell's Wind.
Guy is a Japanese street-brawler in New York who chooses to train under the famed boxer, Roman, with the hopes that he can raise enough money as a heavyweight to fund a life-saving operation for his father.