Arc 15Shadow Organization and Rōran
Nagato’s allies uncovered the Shadow Organization’s cyborg program, fought its ultimate modified subject, and exposed its plans to revive the God Tree. As the group split to pursue the Spring of Life and confront the Five Kage Summit, they discovered the Sky Country’s designs on Rōran and the Dragon Vein.
- Sasuke, Naruto, Karin, and Yuki-onna exposed Shadow Organization infiltrators in the Land of Whirlpools, then fought off the Black Shadow Unit and launched an attack on the organization’s offshore base.
- Yuki-onna froze the Shadow Demon King, and Nagato, Sasuke, and Naruto broke his regeneration and modifications, restoring him to Ichiro Tanaka.
- Kisame and Nagato agreed to cooperate, while Sasuke learned from Tanaka that the Shadow Organization had a thousand cyborgs and planned to revive the God Tree with Tailed Beast Chakra.
- Yuki-onna revealed that Absolute Zero was crystallizing her body, and Nagato found a scroll pointing to the Spring of Life in Rōran as a possible cure.
- Sora offered treatment for Yuki-onna in exchange for Kekkei Genkai samples, and Sasuke discovered the Sky Country sponsored the Shadow Organization’s research and sought the Dragon Vein.
- Nagato and his allies split up, with Sasuke, Naruto, and Karin traveling to Rōran while Nagato, Konan, Yuki-onna, and Kisame went to the Five Kage Summit, where Nagato exposed Danzō’s dealings with Lord Shadow and extracted Danzō’s soul.
- Sasuke, Naruto, and Karin entered Rōran, found a logbook describing the Dragon Vein and the Queen’s Heart plan, and reached the contaminated Dragon Vein with help from Uzumaki Runes.
- Sara revealed that Naruto’s Uzumaki blood could purify the Dragon Vein and gave him a life-draining Time-Space Key, just as Sora arrived seeking it.