At the moment a strange planet appears in the sky, Hideyoshi Toyotomi, a formerly honorable and peaceful man, is transformed into a power-mad dictator and his country is rocked by natural disasters. Soon an evil army of demons appears; disorder spreads across the country; people are lost; and villages are burned to the ground. Just when it seems Japan is approaching its darkest hour, a mysterious warrior appears on the scene to try and stop the havoc.