The Ushi Ushi no Mi, Model: Ushi Oni (ウシウシの実,モデル：ウシの鬼, Ox Ox Fruit, Model: Ox Demon) Is a Mythical Zoan Devil Fruit that allows the user to turn into a full or hybrid form Ushi Oni, Which is a giant sea monster with a head of a bull with horns and a lower body of a squid.