In a world ravaged by nuclear war, humanity has emerged from the ashes to face a never-ending nightmare of pain and suffering. Amidst the chaos, warlords and marauders reign over the shattered remnants of society, terrorizing and enslaving those who are left. Survival is a brutal daily battle, and death is the only escape. Amidst this savagery, Ken stands out as a master of Hokuto Shinken - the Divine Fist of the North Star. But he is not the only one skilled in martial arts. Rei, a practitioner of Nanto Suichoken, is on a quest to rescue his sister from the clutches of the Fangs - a brutal gang of sadistic thugs. Joining forces, Ken and Rei will stop at nothing to retrieve her, and woe betide anyone who gets in their way!