The year is 199X, and most of the world's population has been wiped out by nuclear war. Raoh, the strongest warrior alive, survives by using a deadly martial art known as Hokuto Shin Ken; this powerful fighting style targets pressure points and is said to be unbeatable. Along with the feisty and beautiful Reina, her smart and cunning brother Souga and Raoh's trusty steed Kokuro-ko, Raoh sets forth to conquer what's left of mankind. Yet the world is not as we know it – it's filled with killers, thieves, warlords and the weak. With epic power and fear, Raoh will conquer his enemies where they stand.
There are seven stars of destiny in the sky, each one linked to one of the seven great champions. Of these stars, Tonrou, the North Star, and Hagun, the South star, shine brightest. Those who are marked with these opposing stars are destined to fight each other to the end. The remaining five strive to prevent the chaos that would come from a battle between the Hagun and Tonrou. Keirou, the ambitious general of the imperial army is the Tonrou, and he will stop at nothing in his conquests until all falls before him. Taitou, a carefree swordsman is the Hagun, and he remains unaware of his destiny until Keirou invades his town. In the aftermath of the destruction, Taitou accompanied by his sister Laila and the fellow star-marked Ryuukou set forth waiting and training for the day they face Keirou again.