Chapter Summaries

Uchiha Yū impressed Chiyo with his strength and medical skills after sparring with Pakura in the Sand Village. Chiyo invited him to treat injured shinobi, and he began healing one under her watch.

• Uchiha Yū outmaneuvered Pakura in a fight, then returned to his team as the Sand children crowded around him.
• Chiyo and Ebizo discussed Konoha's strong new generation and the Sand Village's difficulty developing medical-nin.
• Chiyo approached Uchiha Yū and invited him to examine patients, while Aburame Hanfeng challenged her intentions.
• Uchiha Yū accepted Chiyo's invitation and went with her and Aburame Hanfeng to a medical room.
• Uchiha Yū cut away necrotic flesh from an injured shinobi's arm, then used the Healing Technique to stimulate the wound's recovery.

Uchiha Yū returned to Konoha after an S-rank mission involving an elite jonin and told Nawaki and Hyuga Reiko about its dangers. He then organized their squad for likely future missions near the front lines, urging them to prioritize staying alive.

• Uchiha Yū treated an injured ninja while Chiyo watched, then Aburame Hanfeng led him away as the group prepared to return to Konoha.
• Uchiha Yū's mission was rated S-rank, prompting Nawaki and Hyuga Reiko to confront him with envy and questions about the mission.
• Uchiha Yū described the danger of the mission and the elite jonin clash, while Nawaki and Reiko argued over who would become Hokage.
• Uchiha Yū stopped Nawaki and Reiko's fight and assigned Reiko to reconnaissance while he and Nawaki handled threats directly.
• Uchiha Yū warned Nawaki and Reiko to put their lives first in future squad missions.

Uchiha Yū told Uchiha He that he had killed Uchiha Shuiyun after Shuiyun betrayed the village and clan, and learned the Hokage had ordered the Uchiha Clan to pay for the mission’s damage and send shinobi to the front. Uchiha He offered him the chance to become the clan’s next head, while Uchiha Yū vowed to make a name for himself in the coming Second Shinobi World War.

• Uchiha Yū left Nawaki and their companion to meet Uchiha He after a clansman summoned him.
• Uchiha Yū admitted he had killed Uchiha Shuiyun for betraying the village and revealing their movements to Rain Village.
• Uchiha He explained that the Hokage knew the truth but had ordered the Uchiha Clan to compensate for the damage and send clansmen to the front.
• Uchiha He urged Uchiha Yū to grow into the clan’s next leader, but Uchiha Yū said he would pursue a mutually beneficial relationship rather than carry the clan’s beliefs.
• Uchiha Yū promised to earn a name in the Second Shinobi World War, and Uchiha He agreed to give him that chance while warning him to become clan head if he failed.
• Uchiha He promised to suppress the mission’s details and protect Uchiha Yū from trouble within the clan, leaving him to face any hostility from the village with his own strength.

Danzō tried to recruit Uchiha Yū into Root, but Yū killed the operative sent to his home. When the Sand Village declared war on the Rain Village, Konoha began preparing to enter the conflict.

• Danzō argued that the Uchiha Clan’s punishment was too lenient, but the Third Hokage and his advisors chose to avoid further conflict and keep the clan’s combat strength available.
• Danzō ordered an ANBU operative to recruit Uchiha Yū into Root before he fully sided with the Uchiha Clan.
• Kaizuke ordered Yū to join Root, but Yū used the radiation around his home to cripple and kill him.
• Danzō learned Kaizuke had not returned and blamed the Uchiha Clan, then received word that the Sand Village had declared war on the Rain Village.
• Danzō went to discuss the declaration with the Third Hokage as Konoha’s ninja gathered to plan for the coming war.

As war approached, Uchiha Yū joined Orochimaru’s force on the Rain Village front and was assigned to the base hospital as a medical shinobi. He noticed the hospital’s treatment process could not handle rising casualties and raised the problem with Tsunade.

• Nawaki told Uchiha Yū to assemble at the village gates, where Orochimaru, Tsunade, and Jiraiya prepared to lead the mission.
• Uchiha Yū reunited with Minato Namikaze, and the two exchanged teasing remarks before wishing each other well.
• Orochimaru announced that their team was temporarily disbanded and explained Konoha’s deployment across the Rain Village, Cloud, Rock, and Sand fronts.
• At the Rain Village front, Tsunade treated wounded shinobi while Uchiha Yū joined the base hospital as a medical shinobi.
• Uchiha Yū noticed the hospital lacked an effective treatment system and warned Tsunade that its procedures had a major flaw.

Uchiha Yū proposed reorganizing Konoha Hospital to sort wartime injuries and assign specialists, impressing Tsunade and prompting her to arrange for him to remain in the rear. Though he wanted to earn a name on the battlefield, he began studying advanced medical ninjutsu under Tsunade while planning to reach the front as a field medic.

• Uchiha Yū explained how nurses and ordinary doctors could sort patients by injury type and severity before medical ninja treated them in specialized operating rooms.
• Tsunade praised Uchiha Yū's hospital reform and ordered follow-up plans, then decided to speak with Orochimaru about recruiting him.
• Orochimaru agreed to Tsunade's request to keep Uchiha Yū at the hospital, leaving Yū frustrated that he could not fight on the front lines.
• Uchiha Yū planned to join a field medical team once the war began, while Tsunade taught him the Chakra Scalpel and Mystical Palm Technique.
• Tsunade confined Uchiha Yū with medical texts and training notes, requiring him to master them before he could leave.

Uchiha Yū treated a growing flood of casualties as the war expanded, while Hidden Rock, Hidden Cloud, and Hidden Mist forces threatened Konoha’s position. Orochimaru summoned him, and he arrived as Orochimaru and Tsunade argued over what role he should take.

• Uchiha Yū told Hyuga Reiko that Konoha had not fully entered the war, then warned her to stay safe as enemy attacks approached.
• Uchiha Yū learned that enemy forces had struck Nara’s line and that Hidden Mist had joined the fighting near the Rain Village.
• Uchiha Yū performed emergency operations at the overcrowded hospital, saving a ninja whose chest had been pierced by a kunai.
• Nawaki delivered Orochimaru’s summons, and Uchiha Yū went to the commander’s office.
• Tsunade objected to Orochimaru’s plans for Uchiha Yū, and Jiraiya urged them to let Uchiha Yū decide for himself.

Uchiha Yū insisted on joining Tsunade’s medical team at the front, despite her warnings about the danger. After reaching a battlefield full of wounded Konoha ninja, he suspected the enemy had staged the situation, but Hidden Mist forces surrounded the group before they could respond.

• Uchiha Yū told Tsunade and Orochimaru he would go to the front lines to save wounded ninja, and Tsunade reluctantly accepted his decision.
• Orochimaru assembled medical ninja and elite chunin guards, and Tsunade led the group toward the Land of Rain with Uchiha Yū close beside her.
• Tsunade killed two Hidden Mist ninja who emerged from a puddle, unaware that another enemy shadow was following the group to lure out the medical ninja.
• At the battlefield, Uchiha Yū noticed that many wounded ninja seemed to have survived the battle but were dying from untreated injuries and blood loss.
• Uchiha Yū warned Tsunade that the enemy might have deliberately arranged the wounded, and a large force of ninja surrounded the Konoha group.

As the Hidden Mist Village ambushed the wounded Konoha ninja, Tsunade summoned a slug to protect them and fought the Mist forces while Uchiha Yū spread radiation across the battlefield. Yū killed Tianyeshui with radiation poisoning and evaded his final Water Dragon Bullet, while Tsunade’s battle against Mishita Tanaka continued.

• Tsunade summoned a giant slug, ordered it to protect the wounded, and broke the Mist Concealment Technique with a punch.
• Mishita Tanaka, wielder of Thunder Fang, attacked Tsunade with lightning while other Mist ninja joined the fight.
• Uchiha Yū released radiation into the rain and surrounding area, then used genjutsu and Fire Release against two Rain Village ninja.
• Yū killed Yutaro’s companion while Yutaro remained trapped in the Hell Viewing Technique.
• Tianyeshui mistook his radiation sickness for poisoning, failed to recover with an antidote, and died after casting Water Dragon Bullet.
• Uchiha Yū leaped away from Tianyeshui’s out-of-control Water Dragon Bullet.

Uchiha Yū used a deadly toxin to kill Tianyeshui and drive back the Hidden Mist ninja, then helped Tsunade treat the wounded. A survivor revealed that Hanzō’s forces were targeting the vanguard, and Tsunade ordered the team to return quickly while she prepared to go there herself.

• Uchiha Yū’s toxin killed Tianyeshui and poisoned three Hidden Mist ninja, forcing Mishita Tanaka to retreat with his remaining men.
• Uchiha Yū absorbed the lingering radioactive elements, and Tsunade examined Tianyeshui’s corpse and warned him to keep his ability from harming allies.
• While Uchiha Yū treated the wounded, an injured ninja reported that Hanzō’s forces were targeting the vanguard, then fell unconscious.
• Tsunade first ordered Uchiha Yū to escort the wounded while she went to the vanguard, but apologized after he warned that the team lacked an elite jonin.
• Tsunade ordered the wounded transported back quickly so they could report the threat from Hanzō’s forces to Orochimaru.

Mishita Tanaka’s unit returned poisoned, while Dan Katō was mortally wounded in a clash with Hanzō’s elite forces and died despite Tsunade’s efforts. With Tsunade overcome by grief and the war escalating, Uchiha Yū took charge of the field hospital and prepared to test medicines on captured enemy ninjas.

• Mishita Tanaka returned to the Kirigakure camp with his poisoned unit, and the camp quarantined him after learning the poison could spread.
• Tsunade returned safely and warned Orochimaru that Hanzō’s personal guard had moved against Konoha’s forces.
• Orochimaru received word that Dan Katō had been severely wounded, and Tsunade rushed to the vanguard but later stood weeping beside his corpse.
• Orochimaru put Uchiha Yū in charge of the field hospital and warned him that the war would bring increasingly difficult missions.
• Uchiha Yū presented antidote pills and a purple anesthetic he had developed, and Orochimaru ordered him to test the medicines on captured enemy ninjas.
• Uchiha Yū went to the prison to begin arranging the human experiments.

Uchiha Yū tested a diluted version of Ibuse’s toxin on Shan Juhua, a captured Amegakure ninja, and found it could work as a painkiller. He left her out of prison and in his care as an experimental subject, then sent the resulting medicine to the hospital wards.

• Uchiha Yū selected Shan Juhua from the prison and ordered female ninjas to clean her before bringing her to his hospital room.
• Uchiha Yū restrained Shan Juhua and injected her with diluted Ibuse toxin, then monitored her sleep and examined her after she woke.
• Uchiha Yū assured Shan Juhua that she would survive and would not return to prison, explaining that she would assist with his experiment.
• Uchiha Yū further diluted the toxin and injected it after cutting Shan Juhua’s arm, confirming that she felt no pain.
• Uchiha Yū packed the newly developed painkiller and sent it to the hospital rooms.

Uchiha Yū and Tsunade discussed the shortage of Ibuse venom and Orochimaru’s plan to starve Amegakure by attacking civilians, which Tsunade accepted while refusing to participate. After Shan Juhua learned of the plan, Yū declared that he would grow strong enough to end war and make a world without ninja.

• Uchiha Yū told Tsunade that their supply of Ibuse venom was inadequate and argued that Konoha needed to defeat Amegakure quickly before Sunagakure betrayed their alliance.
• Tsunade accepted Orochimaru’s plan to cut off Amegakure’s food by attacking surrounding villages, but decided she would not take part in killing civilians.
• Shan Juhua heard that Konoha planned to attack villagers and questioned Uchiha Yū, who defended the decision as a way to end the war sooner.
• Shan Juhua asked what could prevent war, and Uchiha Yū concluded that only overwhelming strength and unifying the ninja world could do so.
• Uchiha Yū vowed to become stronger than the Sage of Six Paths, end war, and ensure that no ninja remained in the world.

Uchiha Yū recruited Shan Juhua to help build Dawn and prepare for the coming war, then caught Hyuga Reiko spying on them. The chapter ended with Yū explaining that he had trapped Reiko in a genjutsu after mistaking her for an enemy.

• Shan Juhua pledged to follow Uchiha Yū and help him pursue a shinobi world without war, and he accepted her request.
• Uchiha Yū named his new organization Dawn, explained his plans to Shan Juhua, and assigned her to leave Amegakure and build a weapons trade network.
• Uchiha Yū promised to connect Shan Juhua with buyers, including Orochimaru, and said he would later provide blueprints for commissioned parts.
• Uchiha Yū sensed someone watching them, found Hyuga Reiko caught in his genjutsu, and struck her head to wake her.
• A Hyuga branch-family member asked what Uchiha Yū had done to Reiko, and he explained that he had mistaken her Byakugan for an enemy's gaze.

Uchiha Yū sent Shan Juhua out of the camp to begin a trade route, while Hyuga Reiko learned that the Hyuga Clan would join the attack on Amegakure. Orochimaru confronted Yū about releasing Shan Juhua, then began discussing how to use Yū’s poison in the battle.

• Hyuga Reiko admitted she had used her Byakugan to peek into Uchiha Yū’s room, and Yū warned her not to spy on her own people.
• Reiko told Yū that Orochimaru had ordered the Hyuga Clan to help attack Amegakure and prevent its ninja from escaping.
• Yū told Reiko she would likely remain at headquarters while he joined the mission, leaving her disappointed.
• Yū disguised Shan Juhua as an ANBU member and escorted her out of camp toward the Land of Rivers so she could reach the sea and conduct trade.
• Orochimaru confronted Yū after he returned and asked about using the deadly poison Yū had developed during the battle.

Uchiha Yū offered to use toxins produced by his body against Amegakure and arranged a weapons supply deal that would also fund Orochimaru’s experiments. Orochimaru sent Tsunade and Jiraiya to attack from separate directions, assigning Yū to Jiraiya’s team as Konoha’s forces set out to destroy villages along their route.

• Uchiha Yū told Orochimaru that his body could produce toxins and offered to deploy them on the battlefield.
• Yū proposed buying weapons from an arms merchant, with ten percent of the proceeds going toward Orochimaru’s experiments, and Orochimaru approved the supply arrangement with a warning about quality.
• Orochimaru ordered Tsunade and Jiraiya to lead separate teams and destroy the villages around their route.
• Orochimaru assigned Yū to Jiraiya’s team because he doubted Jiraiya would kill everyone they encountered.
• Orochimaru’s squads departed to attack villages, aiming to advance into Amegakure within a day while Sunagakure held back Kirigakure.

Uchiha Yū and Jiraiya’s squad advanced through Rain Country, where Yū found Nagato, Konan, and Yahiko but let Jiraiya spare them. Kimura Daishi prepared Amegakure’s defenses with Ibuse, and Jiraiya’s forces reached the village outskirts, where Yū offered to try a plan against the poisonous gas.

• Orochimaru’s forces attacked villages on three routes, while Jiraiya intervened to stop several massacres.
• Uchiha Yū discovered Nagato, Konan, and Yahiko hiding in ruins, and Jiraiya stopped him from killing them.
• Jiraiya put Konan and Yahiko to sleep with genjutsu, while Nagato’s Rinnegan pressured Yū into deactivating his Sharingan.
• Kimura Daishi learned that Konoha’s forces were advancing and ordered a defensive line in Amegakure, summoning Ibuse to spread poisonous gas.
• Jiraiya brought his forces to the village outskirts and considered how to avoid the poison before Yū offered to try.

Uchiha Yū used radioactive toxins to weaken the Amegakure forces hidden in Ibuse’s poisonous mist, leaving Jiraiya and the sages alarmed by the destruction around him. When Yū stopped releasing the toxin, he reported that a few enemies had escaped.

• Jiraiya doubted that Uchiha Yū could help break through Amegakure’s defenses, but Yū approached the poisonous mist to release his toxins.
• Uchiha Yū radiated lethal energy that withered the surrounding plants and poisoned the Rain ninja despite their gas masks.
• Kimura Daishi realized his troops were being poisoned and ordered them to flee as their bodies weakened.
• Uchiha Yū warned Jiraiya to stay away, while the sages sensed that his power was contaminating the natural energy and destroying the land.
• After ten minutes, Uchiha Yū stopped releasing the toxin and told Jiraiya that a few Amegakure ninja had escaped.

Uchiha Yū’s radioactive poison wiped out the Amegakure force blocking Jiraiya’s group, and the reunited Konoha forces prepared for battle against Hanzō. Yū stopped Nawaki from charging into the fighting and warned him to stay close, while Nawaki remained eager to prove himself.

• Uchiha Yū traced the fleeing Amegakure ninjas by their radioactive residue, warned the pursuing Konoha ninjas not to approach them, and the Konoha force burned the contaminated corpses.
• Jiraiya’s group reached the other Konoha forces before nightfall, and Jiraiya told Tsunade and Orochimaru how Uchiha Yū had destroyed the enemy village force.
• Uchiha Yū discovered Nawaki had secretly followed Orochimaru to the battlefield and challenged his belief that Monstrous Strength Fist would protect him from Ibuse’s poison or Hanzō.
• Uchiha Yū warned Nawaki that enemies could use him to threaten Tsunade and instructed him to stay by his side during the coming battle.
• Nawaki protested that he might end up protecting Uchiha Yū, while the Konoha forces waited for the final battle with Amegakure.

Konoha’s forces surrounded Amegakure as Hanzō learned that a deadly poison had devastated Kimura Daishi’s troops and ordered an investigation. After probing with small teams, Hanzō prepared a nighttime counterattack, and Orochimaru’s forces moved to meet it.

• Yū and Nawaki formed a team and chose to stay on the outskirts, away from the core battlefield.
• Kimura Daishi returned to Hanzō severely poisoned, reported that his force had been killed, and died; Hanzō recognized the poison’s similarity to the one used against Kirigakure ninja.
• Hanzō ordered his troops to stall Konoha, sent ninja to investigate the poison, and told them to alert Kirigakure.
• Orochimaru, Tsunade, and Jiraiya held back from a direct assault while Amegakure’s scouting teams approached their positions.
• Hanzō assembled his forces for a nighttime counterattack, and a Hyūga branch family ninja relayed the news to Orochimaru.
• Orochimaru’s and Hanzō’s forces advanced toward each other as the battle began to take shape.