Gan Fall is a former god of Skypiea in One Piece, known as the “God of the Upper Yard” and later as the “Knight of the Sky.” He is a kind, honorable, and experienced warrior who protects the people of Skypiea. After being overthrown by Enel, he continues to aid the Straw Hat Pirates and the island’s inhabitants. He serves as an important supporting character in the Skypiea arc, representing justice, leadership, and resistance against tyranny.