Arc 28The Fourth Great Ninja War
Chen exposed Akatsuki’s threat, formed the Allied Shinobi Forces, and awakened the Rinnegan after experiencing Konoha’s history through Genjutsu. As the war began, Black Zetsu took control of Nagato and used him to revive Madara.
- Chen warned the Five Kage that Akatsuki was gathering Tailed Beasts, proposed an alliance, and watched the Six Paths of Pain attack the summit.
- Chen fought the Six Paths, destroyed several of them, and helped the Kage defeat the Deva Path’s Planetary Devastation before Nagato escaped.
- Chen retrieved Madara’s corpse from an underground cave, then returned to the summit as the Kage agreed to form the Allied Shinobi Forces.
- Chen was named commander, declared the start of the Fourth Great Ninja War, and returned to Konoha to prepare to awaken the Rinnegan.
- Orochimaru and Hiruko transplanted Madara’s cells into Chen, who used Naobi God Genjutsu to experience Konoha’s history until he died as an old man and awakened the Rinnegan.
- The Allied Shinobi Forces assembled and organized their divisions while Sakumo, Chiyo, Kakashi, and Nawaki prepared for battle.
- Fugaku mobilized nearly sixty thousand White Zetsu, and the Allied Shinobi Forces advanced into the Land of Rain as the war began against Pain and the White Zetsu army.
- Black Zetsu possessed Nagato and forced him to use Rinne Rebirth, reviving Madara in his younger form with both Rinnegan.