At a castle town, monitored by the Camera bird (evil eye bird) and ruled by the Kizoku (evil genius), an outcast human boy Taka witnesses Raiya, who wields the "naked sword," slay an outcast man who had challenged her. Conflict between the outcast people is prohibited, and so happens that a patrol comes to see this, who's an underling of Kizoku and a master of the legendary sword technique "Hyperdimensional Style'', a steal machine warrior, Zengar.