A former naval admiral and leader of the Neo Marines which also includes his henchmen and commences an assault on the navy on Firs Island, a Volcano and one of the End Points. While there, Zephyr steals the Dyna Stones and fights Kizaru before he starts an eruption to defeat the Admiral only to be sent flying into the ocean. While having a cherry blossom party, the Straw Hat Pirates discovers and heals Zephyr. When Zephyr learns that Monkey D. Luffy is a pirate, he fights Luffy, Roronoa Zoro and Sanji (One Piece). Having discovered Zephyr's location with a Vivre Card, Ain and Binz join the ex-Admiral to fight them. Ain uses her Devil Fruit powers to de-age Nami (One Piece), Tony Tony Chopper, Brook (One Piece) and Nico Robin, while Binz uses his Devil Fruit powers to trap Franky (One Piece), Usopp and Brook (One Piece) with vines. Realizing that Luffy is the grandson of Monkey D. Garp, Zephyr attempts to kill them, but the Straw Hats are forced to flee. At Marine Headquarters, the navy discovers Zephyr's whereabouts and decide to recover the Dyna Stones.