Arc 14Return to Sabaody
Xi Yan reunited with the Straw Hats after training on Rusukaina, shared news of the wider world, and helped the crew regroup on Sabaody. After defeating the Marines and Pacifistas, the Straw Hats escaped aboard the Thousand Sunny, where Merry's wind powers and Sanji's unexpected reunion with the okama left them poised to depart.
- Xi Yan revealed his staged death, gave Hancock photographs of the Celestial Dragons he had killed, and entrusted Nami with the Cloud Cloud Fruit while Merry discovered her wind power.
- Xi Yan left Amazon Lily to train with Rayleigh on Rusukaina, where Rayleigh explained how Haki could counter the God's Knights' regeneration and Xi Yan committed to two years of training.
- Xi Yan reunited with Luffy and the Straw Hats on Sabaody, gave Nami the Cloud Cloud Fruit, and learned from Shakky about Blackbeard, the former Whitebeard Pirates, and changes among the Marines and Shichibukai.
- Xi Yan revealed to the crew that he had killed seven Celestial Dragons and stolen their treasure, while Robin reported that Kuma remained unconscious and Usopp learned that his Baiteng Fruit was actually the More-More Fruit.
- The crew left Shakky's bar for Fish-Man Island as Brook announced Luffy's survival at his concert and chose to leave his music career to rejoin the Straw Hats.
- Sentomaru sent Marines and Pacifistas after the real Straw Hats, but Perona, Luffy, Zoro, Sanji, and Xi Yan fought them off before Merry lifted the crew away with her wind power.
- Hercules and Nami's mentor delayed the Marines, allowing the Straw Hats to reunite aboard the Thousand Sunny with Franky, while Merry explained her long-range wind ability and Sanji heard that okama were chasing the Marines.