Viz Media One Piece, (Omnibus Edition), Vol. 11 : Includes Vols. 31, 32 & 33

"As a child, Monkey D. Luffy dreamed of becoming King of the Pirates. But his life changed when he accidentally ate the Gum-Gum Fruit, an enchanted Devil Fruit that gave him the ability to stretch like rubber. Its only drawback? He'll never be able to swim gain - a serious handicap for an aspiring sea dog! Years later, Luffy sets off on his quest to find the One Piece, said to be the greatest treasure in the world... The sky island of Skypiea is in danger of complete eradication if its maniacal leader Kami Eneru has his way. Luffy and his Straw Hat Crew entered the territory seeking a city of gold, but once the team befriends some citizens and learns the local lore, their mission turns personal. In an extended clash, Luffy and Eneru duke it out - Luffy's rubber limbs and indomitable spirit against the Kami's insane arsenal of weapons, including the terrifying and mysterious Golden Bell!"