Luffy and his pirates can't wait to board the glittering Sin City ship known as Gran Tesoro, but they soon find themselves in way over their heads.Luffy and his pirates can't wait to board the glittering Sin City ship known as Gran Tesoro, but they soon find themselves in way over their heads.Luffy and his pirates can't wait to board the glittering Sin City ship known as Gran Tesoro, but they soon find themselves in way over their heads.