Betraying the ancient covenant, three beautiful sisters abandon their oaths and flee from the demonic lands of ninja. Refusing inevitable defeat, the siblings shroud themselves within the shadows their pursuers employ and resist with deadly results. Thus the leader of the ninja clans has delegated his most favored son with the important and coveted task of neutralizing the kunoichi. Traditional law demands their immediate execution, but the significance of cryptic information and secret techniques the girls possess makes live capture for interrogation too valuable an alternative to disregard. Thus Takame goes forth to accomplish his orders and "rehabilitate" the wayward ninja.