Arc 4The Federation and Akatsuki
Hyuga Kei founded the Ninja World Federation, defeated forces from Sunagakure and Kumogakure, and used the conflict with Obito to take his Sharingan. Two years later, as Akatsuki captured Gaara, Kei sent Federation forces to support the rescue while Neji joined the mission and Kimimaro and Jugo held off Itachi.
- Hyuga Kei and Kabuto Yakushi built War Puppets, then Kei led Sound Village forces in defeating Iwagakure at the Land of Grass and helped negotiate the country’s independence.
- Hyuga Kei united six small nations into the Ninja World Federation, recruited Mui and the Land of Grass, and announced the new government to its people.
- The Federation routed Sunagakure and Kumogakure, and Hyuga Kei hosted a summit where the Five Great Nations recognized the Federation and established diplomatic relations.
- Hyuga Kei revived the four Hokage to explain his plans, then helped Konoha locate Obito and killed him after taking his Sharingan.
- Hyuga Kei fused Obito’s Mangekyō Sharingan into his own eyes, awakened his Eternal Mangekyo Sharingan, and spent two years strengthening the Federation and preparing an Impure World Reincarnation army.
- After Deidara captured Gaara, Temari appealed to Hyuga Kei, who sent Federation forces to Sunagakure and helped cure Kankuro before the rescue team departed.
- Neji freed Tenten and Rock Lee from Kisame’s clone and joined them, while Kimimaro and Jugo stayed behind to hold off Itachi as Naruto’s team continued toward Gaara.