In a post-nuclear future not so far from now, human race has made many steps behind. The weaks are reduced in slavery, while genetically modified giants rule the world. Gunpowder seems only a far memory and martial art is the only weapon a man can count on. Two schols face eachother in the battle for dominion: Hokuto and Nanto. Ken Shiro is the rightfull successor of Hokuto school, while Shin is Nanto's one. Shin stole Ken's girlfriend Julia and now Ken is looking for her.
Kenshiro, the chosen successor of the deadly Hokuto Shinken style, travels the barren wasterland of post-apocalyptic Earth as seeks to rescue his fiancee Yuria, who was kidnapped by Shin, his jealous rival from the Nanto Seiken school. As the series progresses, we are introduced to the six Grand Masters of the Nanto Seiken school, as well as Kenshiro's three adoptive brothers, also trained in the art of Hokuto Shinken. Eventually, Kenshiro's ultimate rival becomes none other than his eldest brother, Raoh, a would-be conqueror who does not recognize Kenshiro as a worthy succcessor.

-ANN