Panic erupts at the Kuron Institute: a guinea pig has escaped. But not just any guinea pig—it is Elaine, a fourteen-year-old girl endowed with immense powers. Her father, Professor Reed, performed an operation on her, aiming to grant her command of a psychic force equivalent to nuclear fission. Elaine has a twin sister, Diana, who is also a product of the same experimentation. Both developed incredible mental abilities, but Diana is handicapped, with a body entirely robotized, whereas Elaine is a wild child with an animal's nervous system. Together, they are the key to a discovery that would disrupt the world.