Motorcycle mania has gotten the best of Megumi, college student (and Goddess roommate) Keiichi Morisato's little sister. Driven to be the best biker around, she decides to test her skill against the Phantom Racer, a ghostly apparition that sometimes appears on a dark stretch of country road. Keiichi and his earthbound-goddess girlfriend, Belldandy, aren't far behind to keep an eye on her, but Megumi better watch the road, because racing phantoms could get her killed! Meanwhile, at Keiichi's technical school, the cybernetic creations of a nutty professor nicknamed "Dr. Moreau" are trouble waiting to happen. Can Keiichi and Belldandy stop the crazed Doctor from unleashing mechanized mayhem on the unsuspecting college campus?