In Feudal Japan, the Edo period brought a time of delicate peace bought with blood. Jubei Kibagami wanders the counrtyside as a ninja for hire. At this time, ninja clans are everywhere. One clan know as the Hiruko Clan, doomed to live and die in drakness, protects a sacred treasure called the Dragon Stone. The Kimon Clan, however, bent on reviving the power of the Toyotomi, wants the Dragon Stone and the treasure it hides.