The series begins with an attack on a cruise ship at the hands of Alvida. Coby", a slave of Alvida, discovers a barrel. One of Alvida's pirates attempts to open the barrel, but a young boy emerges and accidentally hits him. The remaining pirates attack him, but the stranger stops them and says that his name is Monkey D. Luffy. Luffy drags Coby to the storage cellar of the ship, where he eats and converses with Coby, who reveils his dream of being a marine. Alvida confronts Luffy, but he escapes and knocks her pirate crew down with his Devil Fruit power. Luffy explains that he ate the Gum-Gum Fruit, therefore he has the powers of rubber. Coby, inspired by Luffy," stands up for himself when Alvida confronts them. Luffy uses his Gum-Gum Pistol technique on Alvida. Luffy and Coby sail away in a ""borrowed"" boat from Alvida's crew. Luffy asks about the pirate hunter Coby mentioned earlier. Coby says that he was captured by the Marines"," and Luffy announces his intention of asking him to join his crew.