Arc 18The Public Security Department
Senju Chen killed Madara, helped Konoha recover from the Nine-Tails’ attack, and took control of Root, turning it into the Public Security Department. He recruited Kabuto and Yamato, then supplied Orochimaru, Amado, and Sasori with White Zetsu for experiments that began producing strange new life.
- Senju Chen pursued Obito to Madara’s cavern, killed Madara with the Thunder God Sword, sealed his corpse, and claimed the Demonic Statue and White Zetsu.
- After returning to Konoha, Senju Chen exposed Root’s attacks on officials’ families, and Hiruzen Sarutobi confined Shimura Danzō after the investigation linked the assassins to Root.
- Senju Chen arranged for Uchiha Fugaku and Uchiha Mikoto to foster Naruto, and Hiruzen agreed while ordering Anbu to protect him.
- Senju Chen took charge of Root, renamed it the Public Security Department, and recruited Kabuto as his deputy, and Shisui and many Root members joined the new unit.
- Senju Chen renamed Kinoe Yamato, brought him into the Senju residence, and assigned him to help with the department’s work.
- Senju Chen brought living White Zetsu to Orochimaru, Amado, and Sasori, who studied their concealment, transformations, regeneration, and ability to assimilate foreign material.
- The researchers explored White Zetsu as a basis for weapons, puppet bodies, and new life, while Orochimaru implanted his soul fragment and a Wood Release clone into one host.
- Senju Chen found a featureless creature thrashing in a tank as branches and vines grew from its body.