Kyoya inherits the burden left by his late father, an esteemed warrior who fell at the hands of the malevolent psychic, Rebi Ra. Stuck in Shinjuku, Rebi Ra's wicked influence has opened a portal to Hell. Kyoya must fulfill his father's unfinished mission by facing legions of demons while keeping a young girl safe from harm. Yet, Kyoya does not fit the mold of the archetypal hero, and is further hindered by undeveloped powers.