Arc 4The Uchiha and the Frontline
Kazuhiko strengthened his ties to the Uchiha, trained his Sharingan and Phantom Body Flicker, and became entangled with Kurenai and Tsunade while Danzo plotted against him. He joined Tsunade’s campaign against Kumogakure, where Konoha captured a fortress and faced the Fourth Raikage, as Orochimaru appeared in the middle of the battle.
- Kazuhiko watched Kakashi defeat Guy, then learned Fugaku suspected he had awakened the Mangekyo Sharingan after Fugaku’s vision showed Danzo repeatedly losing to him.
- Kazuhiko gained new traits, equipped Underworld Gaze, and used it to glimpse his own safe future before perfecting his Three-Tomoe Sharingan.
- Kazuhiko demonstrated his Phantom Body Flicker to Shisui, defeated him in a duel, and declared that he would become Hokage as the Uchiha debated their future.
- Danzo ordered Root to monitor Kazuhiko, Shisui, and Tsunade while Kazuhiko counseled Itachi and arranged for Guy to train him.
- Kazuhiko grew closer to Kurenai and Tsunade, helped Tsunade confront her grief over Nawaki, and agreed to join her on the mission against Kumogakure.
- Fugaku showed Kazuhiko the Uchiha stone tablet, and Tsunade’s force infiltrated and captured a Kumogakure fortress after Kazuhiko eliminated its defenders.
- The Fourth Raikage and Killer B led Kumogakure’s forces to face Konoha, and Kazuhiko and Tsunade fought A as Killer B transformed into the Eight-Tails.
- Kazuhiko attacked A alongside Tsunade, who activated Creation Rebirth to defend herself from his strike, while Orochimaru emerged from a rock wall and Kazuhiko said he had been waiting.