Luffy S Devil Fruit Why Was It Valuable To The World Government Otakukart Blueno, member of CP9, stated that Grand Line scientists have noted that if a person consumed two Devil Fruits, the person's body would destroy itself Furthermore, devil fruit powers can be affected by seastone In the recent chapters, Doctor Vegapunk, a Navy Scientist, researched the effects of the Devil Fruit and seastone↑ 90 91 One Piece Manga and Anime — Vol 40 Chapter 379 (p 7) and Episode 266, The eight CP9 members' individual Doriki levels are revealed ↑ One Piece Manga and Anime — Vol 42 Chapter 408 (p 34) and Episode 293, Kalifa herself reveals the devil fruit's name to Nami ↑ One Piece Manga and Anime Chapter 358 (p Cp9 one piece devil fruits