Hito Hito no Mi, Model: Demon/Lamia Anima

The  Hito Hito no Mi, Model: Demon  is a  Mythical Zoan   Devil Fruit  that allows its user to transform into a demon hybrid and a full demon at will, making the user a  Devil Human (悪魔の人間). It was eaten by the doctor of the  Blacksmith Pirates ,  Mary Wolverston.