Arc 20War, Kaguya, and New Worlds
Uya ended the Fourth Shinobi World War, defeated Madara Uchiha and Princess Kaguya, and stopped Momoshiki Otsutsuki after the Infinite Tsukuyomi. Weakened by the battle, he crossed into the One Piece world, where he developed a sword intent and drew Hawk-Eye Mihawk’s attention.
- Tsunade joined the alliance, and Uya named her commander of the Allied Shinobi Forces as the Fourth Shinobi World War began.
- Madara Uchiha overwhelmed the Five Kage with meteors, but Uya erased them and defeated Madara after he became the Ten-Tails’ jinchūriki.
- The Infinite Tsukuyomi took hold after Madara’s death, and Black Zetsu revived Princess Kaguya, whom Uya knowingly allowed to return before killing Black Zetsu.
- Uya fought Princess Kaguya across her dimensions, destroyed the Expansive Truth-Seeking Orb and returned to the Shinobi World with the God Tree Fruit.
- Uya released the Infinite Tsukuyomi, and the people awoke while he and Kushina watched Yuxi encounter Orochimaru and the arriving Momoshiki Otsutsuki and Kinshiki Otsutsuki.
- Uya defeated Kinshiki and Momoshiki, then crossed into the One Piece world to recover after using Night Guy.
- Uya watched Hawk-Eye Mihawk defeat Loff, developed his own sword intent, and faced Mihawk as spectators gathered.