One Piece 8
Luffy and his crew pursue the legendary One Piece treasure. After eating the Gum‑Gum Devil Fruit, Luffy gains rubber‑like elasticity but cannot swim, and he battles Baroque Works captain Crocodile while trying to rescue the fallen princess Vivi and protect the kingdom of Alabasta. The crew later finds a former Baroque Works operative among them, whose motives toward the Straw Hats remain unclear.