Chapter Summaries

Five-year-old Uchiha Nian learned that his father had betrayed the village and began training to become a strong ninja. Meanwhile, Kakuzu met a black-clad young man in Hidden Leaf Village and recognized him as Uchiha Shin'yu.

• Uchiha Nian learned from Setsuna that his father had betrayed the village and resolved not to repeat his father's weakness.
• Nian bought his first Shuriken and struggled to practice, while Uchiha Tong Ren told him about Uchiha Chiri and the talented Orochimaru.
• Tong Ren took Nian to find Orochimaru, but the boys collided with a masked man who entered a nearby izakaya.
• Kakuzu met a young man wearing Black Satin over his eyes, who recognized Kakuzu and refused to reveal his eyes.
• Kakuzu compared the young man's appearance with a Bounty Notice and identified him as Uchiha Shin'yu.

After losing the Hokage Election, Uchiha Madara left the Hidden Leaf Village alone until Uchiha Shin'yu caught up and offered to follow him. Shin'yu revealed his Mangekyo Sharingan, and Madara accepted him as a potential successor before asking what ability his eyes possessed.

• Uchiha Madara left the Hidden Leaf Village after his clan refused to follow him.
• Uchiha Shin'yu caught up with Madara and said he wanted to leave the village with him.
• Shin'yu told Madara that the Senju Clan had killed his parents and that his younger brother, Uchiha Kagami, had embraced the Senju's Will of Fire.
• Shin'yu argued that the village's peace would lead the Uchiha to ruin, and Madara was moved by their shared sense of betrayal.
• Shin'yu revealed his Three-Tomoe Sharingan and then its Mangekyo form, impressing Madara and making him accept Shin'yu as a possible bearer of his will.
• Madara asked Shin'yu what ability his Mangekyo possessed.

Uchiha Shin'yu explained how he gained the Eternal Mangekyo Sharingan and spent six years letting Kagami's Yang Release genes strengthen his body. When Kakuzu tried to claim Shin'yu's 580 million ryo bounty, Shin'yu revealed he had arranged the bounty to lure Kakuzu and make him his target.

• After transplanting Uchiha Kagami's Mangekyo Sharingan, Shin'yu went blind and completed the fusion, awakening the Eternal Mangekyo Sharingan three months later.
• Shin'yu kept his eyes covered for six years while Kagami's Yang Release genes gradually fused with his body and made him stronger.
• Kakuzu recognized Shin'yu and reacted excitedly to the 580 million ryo bounty on his head.
• Shin'yu asked Kakuzu to fight outside and learned Kakuzu had originally come to target Sarutobi Hiruzen, the Third Hokage.
• Shin'yu revealed that he had issued the bounty on Sarutobi Hiruzen and told Kakuzu that Kakuzu was his real target.

Shin'yu explained his Mangekyo Sharingan abilities to Madara and persuaded him to help free Nanashi, the Uchiha Clan's sealed secret weapon. They agreed that Shin'yu would return to the Hidden Leaf Village to steal a scroll revealing her seal's location, and he used Ame no Tokotachi to reverse himself back into the village.

• Shin'yu told Madara that his left eye, Mahoraga, adapted to phenomena and countered them, while his right eye, Ame no Tokotachi, reversed his own state by up to five minutes.
• Shin'yu concealed that Ame no Tokotachi could also reverse anything within his sight, at a greater cost depending on its scale and the chosen point in time.
• Shin'yu reminded Madara about Nanashi, an Uchiha girl imprisoned and transformed into a weapon, and suggested that a secret scroll in the Hokage Building could reveal where she was sealed.
• Madara agreed to wait outside the village while Shin'yu snuck back to steal the scroll and return before the moonlight was brightest.
• Shin'yu activated Ame no Tokotachi, selected his location in the village from five minutes earlier, and vanished from Madara's sight.

Shin'yu infiltrated the Hokage Building and stole scrolls containing Warring States Sealing History and two S-rank or forbidden techniques. As he reached the village gate, an unseen pursuer caught him, and Shin'yu realized a Flying Thunder God formula had been marked on his sleeve.

• Shin'yu returned to the Uchiha Clan Territory, prepared his equipment, and decided to leave the village with Uchiha Madara despite Uchiha Kagami's refusal to join them.
• After nightfall, Shin'yu used his Sharingan to incapacitate the guards at the Hokage Building and control a Senju Ninja guarding the secret chamber.
• Shin'yu had the Senju Ninja find Warring States Sealing History and every S-rank Ninjutsu or forbidden technique in the chamber, taking three scrolls in total.
• Shin'yu fled the Hokage Building, knocked out three patrolling ninjas, and headed for the village gate.
• An unseen pursuer pressed a Kunai to Shin'yu's throat, and Shin'yu spotted a Flying Thunder God formula marked on his sleeve.

Tong Ren introduced Uchiha Nen to Orochimaru, and the three became friends while practicing Ninjutsu at a secluded Training Ground. After Orochimaru spoke of seeking immortality, they heard two people nearby discussing a fight and hid to watch them.

• Tong Ren brought Uchiha Nen to meet Orochimaru at the cemetery, and the boys introduced themselves.
• Tong Ren led Orochimaru and Nen to a secluded Training Ground in the Hidden Leaf Forest.
• Orochimaru demonstrated Wind Release: Airflow Dance, and Tong Ren performed Fire Release: Great Fireball Technique.
• Orochimaru offered to help Nen learn Ninjutsu, and the boys discussed finding Chakra Paper to test Nen's Chakra Nature.
• Orochimaru said he wanted a technique that could grant immortality, then the three heard two people nearby arguing about a sparring match.
• Orochimaru pulled Tong Ren and Nen into the grass, where Nen glimpsed two figures facing off through the forest.

Shin'yu was exposed as he tried to escape Hidden Leaf Village and confronted Tobirama Senju, who led Senju and Uchiha ninjas against him. After awakening his Mangekyo Sharingan, Shin'yu survived repeated fatal attacks with Ame no Tokotachi, leaving Tobirama and the surrounding ninjas stunned.

• Shin'yu discovered the Flying Thunder God Mark on his clothes and realized someone had betrayed him, then exposed and destroyed the marked outfit while facing Tobirama Senju.
• Tobirama accused Shin'yu of stealing classified documents, but Shin'yu refused to surrender and declared he was leaving Hidden Leaf Village.
• Senju and Uchiha ninjas surrounded Shin'yu, and Uchiha Kagami pleaded with his brother to surrender and return to the village.
• Shin'yu awakened his Mangekyo Sharingan, prompting Tobirama to attack him with Water Severing Wave, but Shin'yu's body restored itself unharmed.
• Shin'yu killed several attackers, including an Uchiha ninja, and repeatedly recovered from wounds as Tobirama trapped him in a water tornado and ordered a barrage of weapons against him.

Shin'yu battled Kakuzu in the forest, effortlessly countering his attacks and displaying mastery of several chakra natures. Kakuzu transformed with Earth Grudge Fear Mode and launched a barrage of tentacles at Shin'yu, while Nian and his friends remained hidden nearby.

• Kakuzu noticed Nian and two other children hiding in the woods, but Shin'yu dismissed them as unable to escape the Barrier.
• Kakuzu attacked Shin'yu with thread-linked fists, but Shin'yu caught them and countered with Water Release, Lightning Release, and Fire Style techniques.
• Kakuzu used Water Release and then Wind and Fire Style attacks to clear the steam and try to seize control of the fight.
• Kakuzu removed his mask and activated Earth Grudge Fear Mode, transforming into a monster with black-thread tentacles.
• Shin'yu emerged unharmed from Kakuzu's flames, deflected his hardened punch, and faced a concentrated barrage of tentacles.

Shin'yu fought his way through the Uchiha and Senju forces, using his Mangekyo abilities to recover from damage and adapt to Tobirama's Water Release. As the ninja overwhelmed him with long-range attacks, Shin'yu summoned his Third Power, Susanoo, and prepared to face them in its black skeletal form.

• Shin'yu unleashed large-scale Fire, Lightning, and other techniques, slaughtering many Uchiha and Senju ninja as he tried to escape the encirclement.
• Tobirama attacked Shin'yu with water techniques and Flying Thunder God, but Shin'yu adapted to Tobirama's Water Release with Mahoraga and developed a powerful Chakra Blade.
• Shin'yu named his new Chakra Blade technique “Autumn Dew on Leaves” as Tobirama ordered the ninja to attack from range rather than engage in close combat.
• The ninja bombarded Shin'yu with long-range Ninjutsu, and he summoned his Third Power, Susanoo, whose skeletal hands deflected and shattered their attacks.

Uchiha Shin'yu defeated Kakuzu with transparent Chakra Threads, Rasengan techniques, and overwhelming speed, then forced him to hear what he had to say. Kakuzu survived the initial dismemberment but lost several hearts and finally submitted.

• Shin'yu trapped Kakuzu in invisible Chakra Threads, hardened some with Gold Gathering, Armament, and sliced him into pieces, terrifying the three children watching.
• Kakuzu's Black Lines reassembled his body, and he revealed that Shin'yu had destroyed two hearts.
• Shin'yu attacked Kakuzu with Rasengan, Sword Qi, and a Spiral Bullet, destroying another heart and blasting apart the Lightning Release mask.
• Shin'yu opened the Third Gate of Life, shattered another mask, tore off Kakuzu's arms, and ripped his head from his body.
• Shin'yu demanded that Kakuzu listen to him, and Kakuzu finally agreed.

Shin'yu recruited Kakuzu as his subordinate after defeating him, then spared Orochimaru, Tong Ren, and Uchiha Nen despite Kakuzu's objections. Before releasing them from the Barrier, he gave Nen a technique scroll and hinted that Orochimaru could seek him out if he pursued immortality.

• Shin'yu made Kakuzu agree to become his subordinate, and Kakuzu began repairing his body after Shin'yu destroyed four of his hearts.
• Kakuzu discovered Orochimaru, Tong Ren, and Uchiha Nen hiding nearby and prepared to take their hearts, but Shin'yu stopped him.
• Shin'yu recognized all three and persuaded them not to reveal what they had witnessed, while promising Kakuzu a chance to hunt high-bounty criminals.
• Orochimaru admitted his interest in immortality, and Shin'yu privately invited him to find him if he could not gain that power in the Hidden Leaf Village.
• Shin'yu lifted the Barrier and gave Uchiha Nen a technique scroll, and Nen thanked him as Big Brother.

Shin'yu fought his way out of the Hidden Leaf Village with Susanoo, but Hashirama confronted him until Madara arrived and took him away. Madara revealed that Hashirama had been the dearest friend he could not let go of, while Uchiha Kagami awakened his Sharingan as he watched his Brother leave.

• Shin'yu used Susanoo to break through the village gates and attack the pursuing ninjas, but Hashirama arrived and stopped his fireballs with Fivefold Rashomon.
• Hashirama sent a Wood Dragon after Shin'yu, but Madara intervened, rescued Shin'yu, and halted the attack.
• Shin'yu secretly restored his body with his right-eye technique while Madara confronted Hashirama and refused to surrender his disciple.
• Madara accused Hashirama and Tobirama of being murderers, then left with Shin'yu despite Hashirama's objections.
• Hashirama called after Madara about Izuna, and Madara replied that Hashirama himself was the dearest friend he had meant.
• Uchiha Kagami watched his Brother leave, and Tobirama noticed that Kagami's eyes had awakened two Tomoe Sharingan.

Madara and Shin'yu traveled to a Senju sealing site where Uchiha Hikari had been sealed, and Shin'yu recalled how war and the deaths of his family had awakened his Mangekyo Sharingan. After Madara left two guards to Shin'yu, Shin'yu killed them and revealed that his body could recover from the Sarutobi ninja's flames.

• Madara and Shin'yu headed northwest through the Land of Fire with the Warring States Sealing History, discussing the Sage of Six Paths' power and the risks of Shin'yu's Mangekyo Sharingan.
• Shin'yu recalled awakening his Mangekyo after finding his parents dead and using his time-reversal ability to save his younger brother, Uchiha Kagami.
• Madara and Shin'yu reached a Senju sealing site and confronted two guards from the Senju and Sarutobi clans.
• Madara sat aside and told Shin'yu to deal with the guards, so Shin'yu trapped the Senju ninja in an illusion and fought the Sarutobi ninja.
• The Sarutobi ninja engulfed Shin'yu in flames, but Shin'yu emerged with his Mangekyo revealed and an uninjured body, then cut the Sarutobi ninja in two.
• Shin'yu killed the immobilized Senju ninja by severing his head.

Shin'yu intimidated Kakuzu into silence after the three children fled, then left the Hidden Leaf Village with him. Later, Nen studied the Spiritualization Technique scroll while Shin'yu recruited Kakuzu into his organization and gave him the Eight Gates Release Formation to train.

• Shin'yu warned Kakuzu not to act too clever about his connection to Nen, and the two departed the Hidden Leaf Village.
• Nen took the Spiritualization Technique scroll home and read it, but found the training method too difficult to understand.
• In the desert, Kakuzu killed Kaji of the 'Calamity Wind' and took his heart, completing his collection of hearts for all five elements.
• Shin'yu told Kakuzu that a powerful woman led their organization and explained that he had recruited Kakuzu for his tenacity.
• Shin'yu gave Kakuzu the Eight Gates Release Formation scroll and explained that Kakuzu's five hearts might let him survive opening the final gate.

Shin'yu freed Uchiha Nanashi from a sealed underground chamber and offered her a chance to choose her own fate. Madara criticized Shin'yu's fighting fundamentals and agreed to train him, while Nanashi emerged into the sunlight as Uchiha Hikari.

• Shin'yu burned the Hidden Leaf Village ninjas' corpses, and Madara criticized his crude fighting style and dependence on ocular techniques.
• Madara offered to temper Shin'yu's abilities, and Shin'yu eagerly accepted his guidance.
• Madara destroyed the sealed stone wall with Susanoo, revealing a cave entrance, and Shin'yu lit the way inside with Fire Release.
• Shin'yu uncovered a sealed girl beneath the cave floor and reached out to free her.
• Shin'yu told the girl to decide and create her own fate, and she took his hand as Uchiha Hikari.
• Uchiha Hikari stepped into the sunlight and recognized the fan-shaped Clan Emblem on Shin'yu's back.

Shin'yu discussed founding an organization with Madara and revealed his failed attempt to fuse Hikari's genes with Hashirama's. He then recruited Kakuzu for a mission with Hikari, leaving its purpose undisclosed.

• Shin'yu told Madara he had recruited Kakuzu, an immortal ninja with five hearts, as the first subordinate for his planned organization.
• Madara trusted Shin'yu to choose the organization's members and reflected on how Shin'yu reminded him of Izuna.
• Shin'yu's attempts to fuse Hikari's genes with Hashirama's had failed, so he planned to bring Orochimaru into the research.
• Shin'yu and Hikari found Kakuzu carrying a bounty target's corpse and asked him to join them after collecting the reward.
• Shin'yu told Kakuzu the upcoming mission was one he would definitely like, but did not explain its purpose.

Nanashi awakened her Mangekyo and attacked Shin'yu and Uchiha Madara, but they subdued her and revealed that the war was over. Madara restored her real name, Uchiha Hikari, and declared that she was no longer a weapon of the Uchiha Clan.

• Nanashi recognized the Uchiha symbol, awakened her Mangekyo, and burned Shin'yu and Uchiha Madara with Amaterasu.
• Shin'yu rewound his condition to extinguish the flames, while Madara broke Nanashi's Tsukuyomi with his Eternal Mangekyo and sent her flying back.
• Nanashi attacked Shin'yu again with Amaterasu, but he dodged and restrained her.
• Shin'yu and Madara told Nanashi that they had not come to send her to war, and Madara revealed that her real name was Uchiha Hikari.
• Madara declared that Uchiha Hikari was no longer a weapon and could live as a person.

Uchiha Shin'yu and his companions attacked the Iron Cutting Merchant Guild in Hidden Mist Village, demanding its president, Oikawa Genzo. When the Third Water Shadow, Minazuki Sora, recognized Shin'yu, he ordered his ninja to stand down and welcomed him.

• Kakuzu, Light, and Shin'yu blew apart the Iron Cutting Merchant Guild's gate and called for Oikawa Genzo.
• Two Hidden Mist ninja attacked Shin'yu, but Kakuzu caught the Exploding Tag Kunai and Light reflected the Water Dragon with her war fan, killing the attackers with fire.
• Shin'yu ordered everyone except ordinary civilians to stay inside, then killed a middle-aged man who tried to flee toward the Water Shadow Building.
• Minazuki Sora arrived with Hidden Mist ninja and asked Shin'yu who he was.
• After Minazuki Sora recognized Shin'yu and feared provoking him, he ordered the ninja to put away their weapons and disperse.

Madara freed Uchiha Hikari and invited her to join his pursuit of an ideal world or leave, and she chose to follow him. At an izakaya, Madara identified two forbidden techniques Shin'yu had recovered and explained how Yin and Yang Release related to chakra, mental energy, and eye power.

• Madara told Uchiha Hikari she could travel with him as a comrade or leave, then walked away with Shin'yu.
• Uchiha Hikari followed Madara and Shin'yu into a small town, where they stopped at an izakaya.
• Shin'yu gave Madara two scrolls he had taken from a secret chamber in the Hokage Building, and Madara identified them as the Spiritualization Technique and Eight Gates Release Formation.
• Madara told Shin'yu to study the Spiritualization Technique and explained how Yin Release and Yang Release were formed from chakra's mental and physical energies.
• Shin'yu connected Madara's explanation to several clan techniques and began to understand how Yin Release related to eye power.

Shin'yu learned that the Oikawa Family's merchant association was controlled by the Kaguya Clan, and Minazuki Sora offered Hidden Mist's cooperation in reclaiming it. As they headed to discuss the matter, Shin'yu reflected on the overwhelming power of his newly strengthened Susanoo and felt confident facing any danger.

• Shin'yu told Minazuki Sora that Gengetsu Hozuki had illegally separated the Oikawa Family from the merchant association thirteen years earlier and that he had come to reclaim it.
• Minazuki Sora explained that Kaguya Qiong now led the association, and he promised Hidden Mist's cooperation while distancing its current officials from Gengetsu's actions.
• Light and Kakuzu reasoned that Gengetsu had installed the Kaguya Clan to secure their support and use them to protect his control of the association's resources.
• Minazuki Sora invited Shin'yu and his companions to the Water Shadow Building to discuss the Kaguya Clan, and Shin'yu accepted.
• Shin'yu recalled how he had compressed and reinforced his Susanoo with Gold Gathering, creating a powerful black armored form capable of devastating attacks.