17-year-old Ikuro Hashizawa is kidnapped and turned into a Baoh, a bioweapon with super human strength and other abilities, by the Doress Laboratory. He escapes with the help of Sumire, a 9-year-old psychic girl. Professor Kasuminome, head scientist at Doress, sends various assassins and monsters to try and kill Ikuro, in means of stopping the Baoh virus from spreading and infecting the world.