From the introduction: Somehow, the locals have managed to contain Ihadurca in Evil Zone, a mystical confinement zone that stretches across multiple dimensions, but it is only a matter of time until she escapes. Great warriors have been called to Happy Island to slay Ihadurca before this catastrophe comes to pass, each for their own reasons, but each equally driven. However, only one can enter Evil Zone to do battle with Ihadurca. Thus, the inhabitants of Happy Island have organized a tournament to choose the champion who will fight for the fate of Happy Island.