Chapter Summaries

Uchiha Yū attended Konoha’s funeral for the shinobi killed in the war and joined Orochimaru in the rain afterward, agreeing to help with blood research and asking for help setting up a laboratory. He then helped Jiraiya lead the grieving Tsunade away from Dan Katō’s grave and suggested that resurrection might be possible.

• Uchiha Yū attended the funeral and resented the village leaders’ Will of Fire rhetoric while so many shinobi had died.
• Orochimaru offered to teach Uchiha Yū and asked to study his blood; Uchiha Yū agreed and requested help obtaining laboratory instruments.
• Orochimaru gave Uchiha Yū a secret location and told him to come the next morning.
• Uchiha Yū and Jiraiya persuaded Tsunade to leave Dan Katō’s grave and take shelter in a tavern.
• Uchiha Yū told Tsunade that summoning the Reaper suggested there might be a way to bring the dead back to life.

After Tsunade mourned Dan Katō, Jiraiya invited Uchiha Yū to travel with him, but Yū declined. Danzo tasked Yakushi Nonō with investigating the source of Yū’s poison, while Yū entered Orochimaru’s hidden laboratory and discovered its human experiments.

• Tsunade drank herself to sleep while remembering Dan Katō, and Jiraiya covered her with his coat.
• Jiraiya invited Uchiha Yū to travel the ninja world with him, but Yū refused and asked him not to use his name in erotic novels.
• Yakushi Nonō gave Danzo intelligence from Iwagakure and asked for funds to expand the orphanage.
• Danzo ordered Yakushi Nonō to secretly investigate the source of Uchiha Yū’s poison in exchange for helping the orphanage.
• Uchiha Yū followed Orochimaru’s instructions to find a concealed entrance in the Forest of Death and entered the laboratory.
• Uchiha Yū saw mutated human test subjects, and Orochimaru explained that they were enemy ninja and said he preferred working with Danzo.

Uchiha Yū explained his Radiation Element ability to Orochimaru and proposed studying radiation as a stable source for accelerating cell division. Orochimaru agreed to pursue the research in secret with Danzo’s funding, leaving Uchiha Yū to lead the project.

• Uchiha Yū asked whether Orochimaru’s human test subjects would be sent to Danzo’s Root, and Orochimaru warned him not to use their partnership to target Danzo.
• Orochimaru examined Uchiha Yū and found that his cells were more active than ordinary cells, giving him greater healing, oxygen transport, and short bursts of strength.
• Uchiha Yū explained that concentrated Radiation Elements poisoned the body, weakened it, and caused irreversible cell mutations.
• Orochimaru compared Uchiha Yū’s ability to his own genetic experiments, recognizing that radiation destabilized cells rather than combining genes into a stable form.
• Uchiha Yū proposed researching whether a stable radiation source could accelerate cell division, and Orochimaru agreed to seek Danzo’s funding for a secret project led by Uchiha Yū.

Uchiha Yū persuaded Orochimaru to avoid abducting ordinary people for experiments, then fortified his home against intruders and trained with radiation energy. The Hokage appointed him to proctor the Chunin Exam, and he helped Reiko and Nawaki prepare for its first test.

• Uchiha Yū persuaded Orochimaru to avoid abducting ordinary people unless absolutely necessary and left him blood for Radiation Element experiments.
• Uchiha Yū discovered that a Shadow Clone had infiltrated his home, while Yakushi Nonō decided to seek information from him at the hospital instead.
• Uchiha Yū raised the radiation around his home and trained in sunlight as the Uchiha Clan guarded his mirrors.
• Uchiha Fugaku delivered the Hokage's order appointing Uchiha Yū to proctor the first Chunin Exam test.
• Uchiha Yū told Reiko and Nawaki that he had become a Special Jonin and would proctor their exam.
• Uchiha Yū advised Reiko and Nawaki to gather intelligence and suggested that Nawaki use a Shadow Clone disguised as stationery to copy Reiko's answers.

Uchiha Yū supervised the first stage of Konoha’s Chūnin Exams, where genin faced an entrance illusion and a difficult written test. After the surviving candidates advanced to the Forest of Death, Yū reunited with Shan Juhua and discussed launching a kunai business using machine-made goods.

• Uchiha Yū set a genjutsu at the exam entrance with Morino Hezhen’s approval, causing candidates who failed to see through it to risk disqualification.
• Hyuga Reiko and Nawaki recognized the illusion after Yū had warned them, while many newly graduated genin were caught by the trick.
• Uchiha Yū and the other examiners removed candidates caught cheating, then passed everyone still in the room and ordered them to gather at the Forest of Death that night.
• Uchiha Yū met Shan Juhua after the exam and learned that she had arrived in Konoha with machine-made kunai assembled to his specifications.
• Uchiha Yū explained his plans to sell the cheaper kunai, expand through factories near Konoha or in smaller countries, and brought Shan Juhua to the new commercial district.

Uchiha Yū opened a low-priced weapon shop and negotiated a major supply contract with Konoha while revealing his weapons were mass-produced. Orochimaru then told Yū that Danzo had started a Radiation Element laboratory and had received the test subject Yū selected.

• Shan Juhua stocked the renovated shop, and the Uchiha Clan spread word of its opening throughout Konoha.
• The Third Hokage visited the shop, tested a kunai, and agreed to make Konoha its largest weapons partner after Uchiha Yū offered an additional bulk discount.
• Uchiha Yū introduced Shan Juhua to the Third Hokage for contract negotiations and assured customers that the shop belonged to him, not the Uchiha Clan.
• Orochimaru saw the busy shop, questioned its low prices, and learned that Uchiha Yū mass-produced uniform kunai using a method other craftsmen could not replicate.
• Uchiha Yū took Orochimaru to a quiet room, where Orochimaru said Danzo had established a Radiation Element laboratory and received the test subject Uchiha Yū had selected.

Uchiha Yū enlisted Orochimaru to advance Radiation Element research and arranged to hire Kakuzu for a mission to seize Hoshigakure’s meteorite. As his shops expanded in Konoha, Nawaki and another ninja visited after surviving the Chunin Exams, and Yū asked them to watch the shop while he was away.

• Uchiha Yū and Orochimaru agreed to advance the Radiation Element plan and use Danzo’s influence for their purposes.
• Orochimaru offered to take Yū to Ryūchi Cave so he could encounter sage power and investigate Radiation Element-based Sage Transformation.
• Shan Juhua told Yū that Konoha wanted priority access to their weapons, and Yū asked her to find Kakuzu for a possible mission against Hoshigakure.
• Yū warned Shan Juhua that the meteorite mission might involve slaughter, though he said they would avoid casualties if Hoshigakure cooperated.
• Uchiha Yū’s shops expanded despite competitors’ discounts, and Nawaki and another ninja arrived after the Chunin Exams.
• Yū asked the two visitors to watch his shop while he handled business the next day.

Orochimaru brought Uchiha Yū to Ryūchi Cave to attempt the first stage of the White Snake Sage’s trial. Uchiha Yū resisted Tagorihime’s illusion and emerged from it, leaving her astonished and Orochimaru impressed by how quickly he passed.

• Orochimaru introduced Uchiha Yū to Tagorihime, who warned that he would be punished if he failed the trial.
• Uchiha Yū attacked Tagorihime with a gleaming strike, prompting her to create an illusion of tempting food around him.
• Uchiha Yū’s Sharingan helped him resist Tagorihime’s illusion, and her attempt to trap him instead caught her in his illusion briefly.
• Tagorihime challenged Orochimaru’s confidence in Uchiha Yū, but Orochimaru insisted that the trial depended on character rather than the Sharingan.
• Uchiha Yū resisted the castle illusion’s temptations, calmly declared that money and food could not control him, and emerged from the fog after breaking it.

Uchiha Yū completed Ryūchi Cave’s second checkpoint by combining chakra with natural energy and Radiation Element. Ichikishimahime acknowledged his success, and Uchiha Yū told Orochimaru their research might help him learn Sage Mode as they prepared for the final checkpoint.

• Orochimaru explained the remaining checkpoints to Uchiha Yū, and Tagorihime decided to accompany them to watch Ichikishimahime’s trial.
• Ichikishimahime explained that Uchiha Yū had to light stones and place them into gaps in a wall to pass the second checkpoint.
• Uchiha Yū found that chakra alone was insufficient and gathered natural energy and Radiation Element to make the stones glow.
• Uchiha Yū filled the wall’s final gap, completing the second checkpoint and impressing Ichikishimahime, Tagorihime, and Orochimaru.
• Uchiha Yū told Orochimaru that their research into natural energy and Radiation Element might help Orochimaru learn Sage Mode, and they prepared to continue to the final checkpoint.

Uchiha Yū faced the third Ryūchi Cave trial, confronting and defeating an inner demon identical to himself. He emerged transformed and began absorbing natural energy, leaving Orochimaru convinced that Yū’s unusual body could point the way to Sage Mode.

• Tagitsuhime warned Uchiha Yū that the venomous third trial would force him to face the demons in his heart, and Orochimaru explained that this was where he had failed.
• Tagitsuhime injected venom into Uchiha Yū, whose inner world presented him with a brutal, snake-faced version of himself.
• Uchiha Yū recognized that he had to defeat his own current self and fought his identical opponent across a mirror-like lake.
• As Uchiha Yū’s expression calmed, natural energy and mist gathered around him, prompting Orochimaru to order Tagitsuhime and the others to retreat.
• Uchiha Yū absorbed Radiation Elements without becoming a monster, then opened his eyes with a deeper Sharingan and newly increased physical strength.

Uchiha Yū passed the White Snake Sage’s trials and began the final, dangerous stage of learning Snake Sage Art. As the Sage’s venom spread through his body and caused a painful transformation, he used natural energy and Radiation Element to try to survive.

• Tagitsuhime congratulated Uchiha Yū for completing all three trial stages, and Orochimaru praised his talent.
• The White Snake Sage tested Uchiha Yū’s resolve and explained that Snake Sage Art required him to endure her deadly venom and transform.
• Orochimaru warned Uchiha Yū that the venom could kill him and offered an alternative path, but Uchiha Yū chose to continue.
• The White Snake Sage injected Uchiha Yū with venom, causing severe pain, black markings, and inhuman changes as he absorbed Radiation Element to repair the damage.

Uchiha Yū completed his Snake Sage transformation at Ryūchi Cave and agreed to assist it in future conflicts, provided the missions were not too dangerous. At Mount Myōboku, the Great Toad Sage delivered a prophecy of the shinobi world's destruction, prompting Jiraiya to set out to investigate.

• Uchiha Yū's body transformed as he absorbed the Snake Sage Art, gaining heightened senses and speed while leaking Radiation Element.
• The White Snake Sage asked Uchiha Yū to promote Ryūchi Cave and help it in conflicts, and he agreed to offer appropriate assistance while avoiding excessive danger.
• The Great Toad Sage awoke and summoned Jiraiya to deliver a prophecy about the shinobi world's destruction and a light that would follow it.
• Jiraiya said he would travel across the shinobi world to investigate and explained that he had found a possible Child of Prophecy in Amegakure.
• Fukasaku urged Jiraiya to consider the new prophecy's meaning, and Jiraiya departed on his journey.

Uchiha Yū and Orochimaru explored how to develop a Curse Mark that could help people absorb natural energy and undergo sage transformation, while confronting the danger it posed to the body. After their experiments, Tsunade prepared to leave Konoha and hand the hospital’s affairs to Yū, leaving the village increasingly short of its strongest ninja.

• Uchiha Yū complained that absorbing natural energy outside Ryūchi Cave was slow, and Orochimaru explained that Sage Mode required time to accumulate it away from the sacred lands.
• Orochimaru brought Yū to a hidden laboratory, showed him failed Snake Sage Art experiments, and began studying Yū’s Sage Mode while accounting for his Radiation power.
• Yū proposed developing a Curse Mark that could stimulate sage transformation, and he and Orochimaru discussed using Radiation Element as a medium while warning that natural energy and radiation could destroy the human body.
• After a day of experiments, Yū returned to Konoha, where Tsunade noticed his cold aura and told him she would gradually hand the hospital’s affairs over to him before leaving on a trip.
• Yū objected that Tsunade was dumping her work on him, while she framed her departure as a chance for him and the next generation to grow; with Jiraiya already gone, Konoha’s strength continued to decline.

Uchiha Yū discovered that a Root spy had been watching him and drove Yakushi Nonō from Konoha Hospital with a venomous snake bite. After a caretaker asked him to treat sick children at Konoha Orphanage, he followed them there and saw how badly neglected the orphanage was.

• Uchiha Yū used Snake Sage Art to locate the hidden observer and identified the masked ninja as a member of Root.
• Yakushi Nonō escaped Uchiha Yū after a venomous snake bit her thigh, then returned to the orphanage to slow the poison with her medical skills.
• A caretaker from Konoha Orphanage asked Uchiha Yū to treat children with colds, and he agreed before heading out on his planned mission.
• Uchiha Yū arrived at the dilapidated orphanage and resolved to donate money once circumstances allowed.

Uchiha Yū confronted Yakushi Nonō at the orphanage and spared her after discovering she was a Root agent. He coerced her into becoming his agent inside Root and promised to support the orphanage, leaving her to deliver a poisonous substance to Danzo’s workplace.

• Uchiha Yū followed Yakushi Nonō’s scent to the orphanage and learned from a caregiver that she seemed ill.
• Uchiha Yū tracked Yakushi Nonō to her room, broke down the door, and found her cutting open her thigh.
• Uchiha Yū subdued Yakushi Nonō and threatened the orphanage’s children, but spared her after recognizing her concern for them.
• Yakushi Nonō refused to reveal Danzo’s secrets because Root’s curse mark prevented her from doing so.
• Uchiha Yū ordered Yakushi Nonō to act as his agent in Root and place a highly poisonous substance near where Danzo worked.
• Yakushi Nonō agreed, and Uchiha Yū promised to fund the orphanage.

Uchiha Yū assembled a team of bounty ninja to steal Hoshigakure’s meteorite and led them into the Land of Bears. The team split near the storage site, with Kakuzu and others set to draw away the guards while Yū approached the meteorite.

• Uchiha Yū accepted a mission to provide medical aid to a poisoned Dawn member and traveled to the rendezvous point.
• Uchiha Yū recruited five elite jōnin, including Kakuzu and Kimura Hoshi, and revealed that their target was Hoshigakure’s meteorite.
• Uchiha Yū assigned Kakuzu, Kimura Hoshi, and Murano to lure away Hoshigakure’s Third Hoshikage while the others seized the meteorite.
• Kakuzu warned the team about Hoshigakure’s unusual chakra and the harmful side effects of the Mysterious Peacock Method.
• Uchiha Yū and the bounty ninja reached Hoshigakure, split into two groups, and Yū approached the meteorite storage site.

Uchiha Yū attacked Hoshigakure to seize its meteorite, using his Radiation Element to weaken the village’s meteorite-trained ninja. After killing two defenders, he faced a jonin who risked his life by drawing on the meteorite’s power, and Yū intensified the radiation.

• Uchiha Yū sent Kakuzu to intercept Hoshigakure’s elite jonin while he entered the village with two allies.
• Uchiha Yū confronted Star Shadow and the meteorite-trained defenders, then disrupted their energy and weapons with his Radiation Element.
• Uchiha Yū entered Sage Mode and killed two chunin, while the remaining jonin watched in horror.
• The jonin absorbed the meteorite’s power without restraint to avenge his comrades and protect Hoshigakure.
• Uchiha Yū increased the Radiation Element mixed with the meteorite’s power as the jonin prepared to fight him.

Uchiha Yū and Kakuzu defeated Hoshigakure’s defenders and seized the meteorite. Yū recruited two elite jonin into Dawn and tried to persuade Kakuzu to manage its finances, leaving Kakuzu tempted by the offer.

• Uchiha Yū killed a Hoshigakure jonin with a punch after disrupting the man’s Star Chakra.
• Kakuzu arrived and killed the Star Shadow while the two elite jonin watched.
• Uchiha Yū examined the meteorite’s Star Chakra and decided to test it after returning, intending to use its radiation to enhance Dawn’s talents.
• Uchiha Yū invited Kakuzu and the two elite jonin to join Dawn, and the two jonin accepted.
• Kakuzu refused because he trusted only money, so Uchiha Yū offered him a monthly S-rank mission fee to manage Dawn’s finances; Kakuzu looked tempted.

Uchiha Yū brought Kakuzu into Dawn to manage its money and restrained the organization’s expansion to avoid attracting Konoha’s suspicion. Orochimaru began examining the meteorite, while Yū warned him to keep the research secret and stay alert because ninja had gone missing.

• Uchiha Yū hired Kakuzu to manage Dawn’s finances after leaving the Land of Bears.
• Orochimaru recognized Uchiha Yū in an intelligence report and anticipated receiving test subjects, while Danzo ordered Root inspected after hearing ninja cough.
• Shan Juhua reported Dawn’s success in Konoha’s weapons market, and Uchiha Yū instructed her to support a separate organization in other villages before expanding Dawn further.
• Orochimaru visited Uchiha Yū’s weapon shop and examined the meteorite, concluding its stable power might enhance the human body.
• Uchiha Yū stopped Orochimaru from taking the meteorite, warned him to keep it secret, and advised him not to leave the village because ninja had gone missing.

Uchiha Yū learned that Shan Juhua had been attacked by bounty ninja and led a search party into the forest to find her. He uncovered signs of a planned ambush and a possible spy, then found a trail and continued the search with Hizashi Hyuga.

• Orochimaru warned Uchiha Yū that major clans were searching for bloodline-limit abilities, and Yū considered Hiruko a possible culprit.
• Jie Jiro gathered weapons merchants and coerced them into joining a plot to kill Shan Juhua.
• Shan Juhua set out for the factory near Konoha’s border, and a wounded guard later reached the village to report that bounty ninja had attacked her and she had escaped.
• Uchiha Yū summoned Hyuga ninja and followed Shan Juhua’s trail to the battle site, where he found corpses but no sign of her.
• Yū concluded that the enemy had known Shan Juhua’s secret route, suspected a spy and the weapons merchants, and found a trail with Hizashi Hyuga.