Ihadurca is a being capable of existing in multiple dimensions simultaneously. The world of Kumi Island is threatened by Ihadurca. Though the cost was heavy, the inhabitants of Kumi were able to temporarily confine Ihadurca in EVIL ZONE, but, the danger is not over. Therefore, Kumi Island was compelled to call upon mighty warriors from other worlds. A tournament is held to select the strongest warrior to face Ihadurca. Each warrior has his own reasons for wanting to fight ihadurca. But, right now, they are warriors.