Monkey D. Luffy
In the series, Robin is introduced as an antagonist, but eventually becomes the seventh member of the Straw Hat Pirates crew, captained by Monkey D. Luffy. Acting as the group's archaeologist and historian, Robin is a Devil Fruit user who possess the power of the Flower-Flower Fruit, allowing her to sprout replicas of her limbs, and later her entire body, from any surface. As the only survivor of the island of Ohara, Robin is the only person in the world of "One Piece" with the ability to read the ancient stones called Poneglyphs, something considered threatening by the World Government, which forbids the practice.