 In 2015, Demon Princess Elzebub (also translated as Princess Dragon Mom) awakens from 10 million years of dormancy and plots to conquer the Earth.She destroys a few major cities in China to prove her power to humanity, who react in shock.Returning to her lair in Inner-Earth, she awakens her army of Skeleton Ghosts and various mutant humanoids to wreak havoc on the surface.