Arc 13The Rain and Danzo’s Fall
Koki comforted Nagato and encouraged Akatsuki to build a better future for the Land of Rain, then confronted Danzo alongside Tsunade and Shizune. After Sasori saved Koki and treated Shizune, Koki awakened his Mangekyō Sharingan and Susanoo, while Orochimaru’s summoning escalated the battle.
- Koki replied to his friends and joined Yahiko and Nagato beneath the covered walkway, where he proposed breaking the mountains between the Land of Wind and the Land of Rain to redirect the rain.
- Nagato told Koki how his parents died protecting him from Konoha ninja, and Koki embraced him, promised to protect him, and urged him to help change the world.
- Koki encouraged Konan and Nagato to remember their hardships and work for the Land of Rain’s future, while Konan confronted Sasori for following Koki.
- Danzo attacked Tsunade and Shizune at an inn, and Koki arrived to fight alongside them as Orochimaru joined Danzo and Kakuzu refused Danzo’s offer to kill Koki.
- Danzo used Izanagi and a Cursed Seal to immobilize Koki and reach for his Sharingan, but Sasori intervened and killed him before Koki’s Mangekyō awakened.
- Sasori recognized Koki and demanded he return to Sunagakure, but Koki asked him to save Shizune, and Sasori began treating her grave wounds.
- Koki summoned Susanoo and tore Danzo apart, then collapsed from exhaustion as Orochimaru killed Danzo and Koki resolved not to trust him.
- Danzo revived and fought Sasori and Koki, then Orochimaru summoned giant beasts while Tsunade summoned Katsuyu, leaving the battle poised to intensify.