Arc 16The Battle for Rin
The Straw Hats, Ace, Sabo, the Marines, and rival pirate crews were drawn into a sprawling battle against Second Golden Lion, then the Uchiha Clan entered the fray. Chunwu awakened his Mangekyō Sharingan, while Tetsuka pushed Rin toward the same breakthrough as Yashiro and the Night Owl Guard fought Blackbeard, leaving the battlefield in a tense standoff.
- Ace and Sabo reunited with Luffy and stood with him against Second Golden Lion and the Flying Pirates, while Luffy, Zoro, and Sanji fought Weevil and the officers.
- Second Golden Lion battled Ace and Sabo for two days as the exhausted Straw Hats held their ground, and Marines and other forces headed for the island.
- Chunwu and Rin arrived with Uchiha fighters and helped Ace and Sabo escape Second Golden Lion’s seawater lion, but Shanks’s arrival only paused the conflict before Blackbeard and the Marines joined the battle.
- Chunwu fought Chaton Tokikake until Tetsuka’s Genjutsu made Rin believe Chunwu had been killed, awakening Chunwu’s Mangekyō Sharingan and Susanoo.
- Yashiro stopped Chunwu and revealed that Rin was unharmed in reality, while the Night Owl Guard raised a tsunami and protected the younger Uchiha as the battle spread.
- Tetsuka continued trapping Rin in Genjutsu to push her Sharingan toward Mangekyō, while Yashiro and the Night Owl Guard confronted Blackbeard after he tried to seize her.
- Blackbeard wounded a Night Owl Guard member and broke the Uchiha’s aerial encirclement, but Yashiro and two guards combined their techniques and forced him to retreat.
- Shanks deterred further escalation, Second Golden Lion ordered the Flying Pirates to withdraw with Stussy, and the Marines held back as Yashiro’s group continued pressing Blackbeard.