A half-man, half-beast is chased by foes wielding power of an unpleasant nature. He would certainly be slaughtered, his mission failed, if not for the intervention of a wandering mercenary -- Kibagami Jubei. With the last of his strength, he gives Jubei a mysterious jewel, thereby transferring his mission: deliver the jewel at all costs to the Priestess of Light. The mystery of the jewel's powers, and the identities of those fiends who quest for it... these are questions whose answers will only be found through blood and battle.