Fifteen tears ago, the evil sorcerer Rebi Rah made a pact with the demons of the underworld--if they would give him power, he would give them the world! Shinjuku was devastated by the power of the underworld and in the years following the disaster became known as the Monster City, inhabited by few and avoided by all others. Now Rebi Rah's plans to open the gate to the demon world are almost complete. Master Rai, keeper of the mystical art of nempo, chooses Kyoya Izayoi, whose father was killed trying to stop Rebi Rah fifteen years ago, to go forth and slay the evil sorcerer. Accompanied by the President's beautiful daughter Sayaka, Kyoya must survive the hazards of the Monster City and master the power of nempo within him to kill Rebi Rah before the whole world is doomed forever!