Chapter Summaries

Gengetsu studied Shinno’s forbidden techniques and concluded that Body Transformation could let someone open all Eight Gates without dying by combining Body Activation, Body Regeneration, and Tailed Beast chakra. He decided the method was nearly complete, despite Ao Cang’s concern that he would devote himself to perfecting it.

• Gengetsu summoned Four-Tails, Son Goku, who gave him two scrolls containing Shinno’s forbidden-technique research.
• Gengetsu studied Body Activation and compared its cellular effects with Lightning Release and bloodline Sage Chakra Sage Transformation.
• After reading about Body Regeneration, Gengetsu concluded that Body Transformation could prevent the usual fatal consequences of opening all Eight Gates.
• Gengetsu identified the technique’s reliance on external Tailed Beast power as its main flaw and praised Immortal Cultivation as the better path.
• Ao Cang asked whether Gengetsu planned to perfect Body Transformation, and Gengetsu assured him that the technique was already nearly complete.

Gengetsu gave Guy a scroll outlining the study and techniques needed to create the Ninth Gate, then learned that Guy knew Shinno. The chapter ended with Gengetsu revealing that Guy’s admired doctor was the same Shinno who had led the Sky Ninja.

• Gengetsu examined blades and meteorite ores as materials for his planned Yuan Magnetic Lightning Blade.
• Gengetsu brought Guy the Ninth Gate scroll, which detailed Body Activation, Body Regeneration, and foundational medical knowledge.
• Guy was overwhelmed by the study requirements but vowed to master them, and Gengetsu left a Shadow Clone to teach him.
• Gengetsu asked Guy about Shinno, and Guy praised the doctor who had helped his body withstand intense training.
• Gengetsu revealed that Guy’s doctor Shinno was the same person as the former Sky Ninja leader Shinno.

Gengetsu investigated why Tailed Beast Chakra failed to assimilate most of his clones and learned how Nine-Tails Chakra could draw in Natural Energy. He realized Dragon Vein Chakra might help Kaori and Naohide cultivate, though he still felt he had overlooked something important.

• Guy learned Shinno had mastered the Eight Gates Formation and eagerly looked forward to fighting him, while Gengetsu assured him Shinno had joined Akatsuki.
• Sage Number Seven told Gengetsu that experiments with Tailed Beast Chakra had failed for all the clones except Sage Number Eleven.
• Sage Number Eleven demonstrated a Nine-Tails Chakra Cloak and explained that Nine-Tails Chakra could draw in Natural Energy, but users had to control its malice and suppress their own evil thoughts to achieve Nine-Tails Chakra Mode.
• Gengetsu realized Dragon Vein Chakra might let Kaori and Naohide draw in Natural Energy and pursue Sage Transformation despite their limited Chakra reserves.
• Gengetsu remained pleased by the new possibility but sensed he had overlooked something important.

Minato recalled Konoha’s pursuit squad after Hiruko vanished, suspecting space-time ninjutsu and possible Akatsuki involvement. In October, Kushina gave birth to a daughter named Kugatsu, leaving Minato, Kushina, Naruto, and Gengetsu celebrating together.

• Minato suspected Hiruko had escaped using space-time ninjutsu and drafted an order recalling the pursuit squad.
• Hiruzen Sarutobi and Minato successfully fused Inferno Release before Kushina went into labor.
• On October 15th, Minato accompanied Kushina into the delivery room while Gengetsu guarded the entrance with Naruto.
• Naruto told Gengetsu that he wanted a little sister and chatted about Hinata and Sakura while they waited.
• Kushina gave birth to a daughter named Kugatsu, and Naruto eagerly welcomed his new little sister.

Minato and Kushina celebrated their newborn daughter Kugatsu with Naruto and Jiraiya, while Gengetsu comforted Tsunade as she remembered her lost family. The next day, Jiraiya challenged Gengetsu to a duel and conceded after Gengetsu defeated him, asking him to protect Tsunade before leaving to finish his second book.

• Jiraiya suggested naming the baby Himawari, but Kushina explained that Kugatsu held special meaning and teased Naruto about using Himawari for a daughter someday.
• Gengetsu took Tsunade's hand as she watched Minato's happy family and remembered her lost relatives, leaving Jiraiya jealous.
• Jiraiya led Gengetsu to a remote spot and challenged him to a contest limited to ninjutsu and taijutsu.
• Gengetsu used a Gravity barrier, speed, and clones to outmaneuver Jiraiya and surround him with Rasengan, winning the duel.
• Jiraiya acknowledged that Gengetsu had surpassed him, told him to protect Tsunade, and left, saying he would return when his second book was published.

Seven-year-old Itachi took a highly anticipated graduation exam against Kakashi, who exposed a flaw in his Shadow Clone technique and taught him to stay cautious. Itachi left the exam having demonstrated his skill but learned how far he still had to go.

• Gengetsu celebrated his plans to become immortal and confront Kaguya before the story shifted to Itachi's graduation in Konoha's fiftieth year.
• Gengetsu accepted Itachi's decision to graduate and arranged for Kakashi, an Elite Jonin, to be his exam opponent before a crowd of Konoha leaders and Jonin.
• Itachi opened the fight with shuriken and seal-less Fire Release, then traded ninjutsu with Kakashi as the spectators watched.
• Kakashi became serious after Itachi displayed his skills and defeated him within a few moves, placing a Kunai at his neck.
• Kakashi revealed an ice crystal that had exposed Itachi's Shadow Clone and advised him to stay cautious and attentive.

After Itachi accepted Gengetsu’s lesson about arrogance, Fugaku asked for him to become the first test subject in the Sharingan evolution experiments. Itachi chose to proceed, and Gengetsu scheduled the attempt for two days later while warning Minato that the method’s flaws might be tied to the Sharingan’s origins.

• Itachi admitted that Kakashi had outmatched him and accepted Gengetsu’s lesson about taking every opponent seriously.
• Gengetsu told Itachi to study Yang Release with Kaori and discuss Bloodline Limit development with him later.
• Fugaku asked Gengetsu to let Itachi become the first test subject for Sharingan evolution, and Itachi agreed to take on the responsibility.
• Gengetsu scheduled Itachi’s experiment for two days later and told him to prepare.
• Gengetsu told Minato that the flaws in Sharingan evolution might stem from Uchiha bloodline genes and Kaguya Otsutsuki.

Gengetsu and Minato discussed how emotional changes mutate Uchiha Chakra and awaken their eyes, then realized the mutation might be controlled by training Yin Release Chakra Nature Transformation. Minato left to cook for Kushina and the others, while Gengetsu stayed behind to continue the research.

• Gengetsu speculated that Kaguya's unusual emotional state had caused a mutation in her Rinne Sharingan that was inherited by her descendants.
• Minato suggested that the Uchiha Clan's Chakra mutation might be mastered directly through training, prompting Gengetsu to consider controlling the mutation instead of suppressing it.
• Gengetsu connected Yin Release's power of imagination and form creation to the Sharingan's evolution and wondered whether intense emotions could be infused into Chakra.
• Minato warned that amplifying emotions could risk losing control, and Gengetsu agreed that the method was still preferable to the alternatives.
• Gengetsu compared Kurama's malice to stubbornness, and Dark Nine-Tails protested that he was merely cautious.
• Minato left using the Flying Thunder God to cook for Kushina and the others, leaving Gengetsu to continue the research.

Gengetsu tested his theory about imbuing Chakra with emotion, but his experiments produced no clear results. A Shadow Clone then returned with the last Fire Release nature transformation needed for Dust Release, while Ao Cang warned that Gengetsu’s understanding of Kekkei Genkai was flawed.

• Gengetsu tried to refine Yin Release Chakra by infusing it with emotions, but Ao Cang advised him to use controlled feelings while refining physical energy.
• Gengetsu focused on love, became distracted by memories of Tsunade, and eventually learned to control his feelings, though his Yin Release Chakra showed no special qualities.
• Gengetsu fused the Chakra with Natural Energy and tried Sage Transformation, but the experiment still failed to reveal the desired effect.
• Ao Cang suggested studying Four-Tails' Chakra, but a Shadow Clone reported that it had succeeded in mastering the material-decomposition direction of Fire Release.
• Gengetsu recalled his months of training and realized he had now gathered the three nature transformations required for Dust Release.
• Ao Cang praised Gengetsu’s mastery of Fire Release and said his results confirmed his theories about Chakra Nature Transformation and Kekkei Tōta, but disproved his understanding of Kekkei Genkai.

Gengetsu rested after Ao Cang warned that exhaustion would make his Dust Release training fail, then resumed trying to fuse Wind, Earth, and Fire Chakra. After two days of repeated practice, he had improved his chakra control, and Itachi's eye awakening day arrived.

• Gengetsu used Flying Thunder God to return home, accidentally went to Tsunade's house, and fell asleep in her bed.
• Tsunade watched over Gengetsu overnight, but when he kissed and embraced her the next morning, she knocked him away.
• At Minato's house, Naruto teased Gengetsu about Tsunade beating him, and Gengetsu asked Minato and Kushina to let him teach Naruto when he turned four.
• Gengetsu resumed training at Shikkotsu Forest, where his Shadow Clones repeatedly failed to fuse Wind, Earth, and Fire Chakra into Dust Release.
• After Tsunade suggested practicing a technique, Gengetsu trained with many Shadow Clones and improved his chakra control through repeated failures.
• Two days passed, and the day Itachi awakened his eyes arrived.

Gengetsu supervised Itachi’s attempt to awaken his Sharingan by guiding Yin and Yang Chakra into his pineal gland. Inside the Yin-Yang Illusion World, Itachi relived a possible future of the Uchiha’s destruction and emerged with Three-Tomoe Sharingan, though Gengetsu suspected the awakening had come at a cost.

• Gengetsu warned Itachi about the risks of the experiment, and Itachi began guiding Yin and Yang Chakra into his pineal gland as the Uchiha watched.
• The Yin-Yang Illusion World trapped Itachi in a future where the Uchiha grew estranged from Konoha and Obito Uchiha secretly fomented conflict.
• Itachi witnessed Shinsui’s death, investigated Akatsuki with Shisui, and found Shisui mortally wounded and missing an eye.
• After Shisui died, Itachi awakened Mangekyo Sharingan and chose to join Akatsuki as a spy, helping Minato and Hiruzen use the Uchiha’s destruction as bait to seal Obito.
• In the laboratory, Gengetsu used Adamantine Soul Chains to break the illusion, and Itachi awoke with Three-Tomoe Sharingan while Gengetsu worried about the cost.

After Itachi awakened his Three-Tomoe Sharingan in the Yin-Yang Illusion World, Gengetsu warned him and the Uchiha that the technique could damage the eyes and alter a person’s will. Gengetsu then trained his disciples, explaining different forms of Boil Release and beginning a demonstration of its nature transformations.

• Gengetsu examined Itachi, learned that forcing his Sharingan to three tomoe had damaged his vision, and warned Fugaku Uchiha that the Yin-Yang Illusion World could affect its users’ bodies and wills.
• Fugaku agreed that the Uchiha needed an ocular technique that could interfere with or break the illusion from outside, while Gengetsu told Itachi to limit his Sharingan use and stay grounded in the real world.
• Gengetsu took Itachi to train with Kaori, Naohide, and Anko, tested their progress, and gave each disciple targeted guidance.
• Gengetsu explained that Han’s Boil Release used steam to boost physical power, while Mei Terumi’s produced corrosive gas, and questioned Anko about why their abilities differed.
• Gengetsu taught his disciples that Chakra Nature Transformation was a dynamic process and described the five major releases as converting energy into matter before beginning a Boil Release demonstration.

Gengetsu taught Itachi, Anko, Kaori, and Naohide how physical and chemical changes related to Chakra Nature Transformation and Kekkei Genkai development. Anko left confident she could master Boil Release, while Naohide chose to continue developing Magnet Release through Wind and Earth Release.

• Gengetsu demonstrated chemical and physical changes by burning wood and heating water, then explained how Fire Release Chakra Nature Transformation could produce different effects.
• Gengetsu clarified that matter and chakra energy were connected but not identical, and that understanding both could guide Kekkei Genkai development.
• Anko declared she would master Boil Release within a year after Gengetsu explained its development path.
• Gengetsu discussed Magnet Release, Wood Release, and Swift Release, offering Itachi suggestions about Swift Release despite lacking firsthand mastery.
• After hearing Gengetsu's analysis of Magnet Release, Naohide chose to pursue Wind Release and Earth Release, the direction he had already explored through Shukaku's Chakra.

After training his disciples, Gengetsu worried that his growing influence might prompt Obito Uchiha and Black Zetsu to strengthen Nagato with the Rinnegan and First Hokage Cells. He decided to investigate Nagato’s strength, then went home to rest and remembered he still needed to pursue the Sharingan.

• Gengetsu and Ao Cang discussed the drawbacks of borrowed powers and suspected Madara Uchiha had tampered with the Rinnegan given to Nagato.
• Gengetsu feared Obito Uchiha and Black Zetsu might help Nagato master the Rinnegan and transplant First Hokage Cells in response to his actions.
• Ao Cang warned Gengetsu that confronting Nagato and Obito Uchiha could trigger a disastrous final battle, so Gengetsu resolved to test Nagato’s level instead of trying to take his Rinnegan.
• Ao Cang suggested traveling after Gengetsu mastered Dust Release, but Gengetsu preferred staying home and was reminded to pursue the Sharingan.
• Gengetsu dispelled his Shadow Clone in the Forest of Death and returned to Tsunade’s room to sleep.

Gengetsu and Tobirama traveled to Amegakure to investigate Nagato and test the Rinnegan. Gengetsu found Nagato, but Pain and Konan intercepted him, and Pain tried to recruit him into Akatsuki.

• Gengetsu decided to infiltrate Amegakure with Tobirama, while Tsunade stayed behind and Minato prepared Konoha to provide support.
• Gengetsu sent a Wood Clone into Amegakure, where it disguised itself as a local Chunin and planted an Inspiration Curse Mark on another Chunin.
• Gengetsu used the Byakugan and geomagnetic sensing to locate Nagato, who sensed Gengetsu in return.
• Konan and Deva Path Pain intercepted Gengetsu as he flew toward Nagato's tower.
• Pain offered to join forces with Gengetsu to end war through violence, and Gengetsu asked to pose a few questions.

Gengetsu challenged Nagato’s belief that war could be ended through pain, arguing that lasting peace required changing how ninja villages and ninjutsu served society. Nagato embraced Gengetsu’s vision of a productive, hopeful future, but vowed to overturn the existing world in his own way.

• Gengetsu explained how the ninja village system and the distribution of the Tailed Beasts had limited war, then asked Nagato what would happen to peace after they died.
• Gengetsu argued that ninjas could use their skills for healing, agriculture, construction, mining, and exploration instead of killing.
• Konan imagined a peaceful future with Yahiko, while Nagato was moved by Gengetsu’s vision of a world with hope.
• Nagato thanked Gengetsu and declared that he would overturn the rotten world, end its hatred and slaughter, and bury the existing ninja system.

Gengetsu left Amegakure to fight Nagato’s Six Paths of Pain on the lake while Obito Uchiha and Zetsu watched from afar. He quickly disabled several Paths, but Deva Path Pain unleashed Shinra Tensei, and Gengetsu began a Sage Art with Ao Cang as the battle escalated.

• Konan gave Gengetsu a paper flower, and he stored it before leaving Amegakure to fight Nagato while Tobirama Senju stayed alert for Obito Uchiha and his allies.
• Obito Uchiha and Zetsu watched from a tower and discussed whether Nagato had been persuaded to turn against them.
• Gengetsu met the Six Paths of Pain on the lake, defeated the Human Path in close combat, and used Ice Release to freeze the water and summon ice pillars.
• The Preta Path halted Gengetsu’s spreading ice, but Gengetsu used Magnet Release to destroy the Asura Path and damage several other Paths with flying debris.
• Deva Path Pain used Shinra Tensei to shatter the frozen lake and send towering waves toward Gengetsu, who joined hands with Ao Cang to begin the Sage Art—Dragon Vein Ice Release—Ice Person Technique.

Uzumaki Gengetsu and Ao Cang fought Nagato’s Six Paths of Pain, using a powerful Ice Release construct to withstand Shinra Tensei. After Deva Path Pain unleashed an even stronger attack, Gengetsu answered with his Super-sized Yin-Yang Spiral Sphere, leaving the collision unresolved.

• Uzumaki Gengetsu and Ao Cang formed a towering ice person that blocked Deva Path Pain’s Shinra Tensei, though its shield shattered and its body cracked.
• Deva Path Pain charged through Gengetsu’s ice spikes, but the ice person’s blade and fist sent him crashing into the lakebed.
• Ao Cang dispelled the Yatagarasu while Gengetsu’s ice person submerged and froze the other Pains.
• Deva Path Pain unleashed a Shinra Tensei that split the ice person’s blades and cracked its arms, prompting Gengetsu to dispel it.
• Uzumaki Gengetsu formed a Super-sized Yin-Yang Spiral Sphere and collided with Deva Path Pain’s Shinra Tensei, blinding the observers.

Uzumaki Gengetsu survived Pain’s strongest Shinra Tensei and fought Obito Uchiha, breaking free of a Cursed Seal and attacking the tower with Konan’s paper clones. As Nagato unleashed Chibaku Tensei, Gengetsu prepared to strike the black sphere with an enormous lightning blade.

• Deva Path Pain used a massively powered Shinra Tensei, but Gengetsu blocked it and pursued him while a clone confronted Obito Uchiha.
• Gengetsu pierced Obito’s heart, but Obito’s Cursed Seal immobilized him; Gengetsu broke free, shattered Zetsu with Adamantine Chains, and Konan’s paper clones blasted the tower apart.
• Konan found Obito injured after the attack, while Nagato told her that Gengetsu had to prove himself capable of creating a new world.
• Gengetsu reunited with his pursuing clone and saw Nagato’s Chibaku Tensei draw up the land, rocks, and mountains around a rising black sphere.
• Tobirama Senju called to Gengetsu, who took to the sky and formed a gigantic lightning blade to slash at the rock-wrapped sphere.

Gengetsu’s High-Frequency Oscillating Lightning Blade destroyed Pain’s Planetary Devastation, but uncontrolled natural lightning badly injured him. After recovering, Gengetsu wondered whether his recent exhaustion pointed to a mental problem.

• Gengetsu’s lightning blade split the mountain and shattered Planetary Devastation, but the attack overwhelmed him and left him charred and powerless.
• Tobirama Senju rescued Gengetsu and brought him to Konoha, where Tsunade treated his extensive injuries.
• Gengetsu recovered enough to reflect on controlling the lightning with Magnet Release and on pursuing the Rinnegan’s powers.
• Gengetsu slept for seven days, woke nearly healed, and worried that his recent exhaustion meant something was wrong with his body.
• Ao Cang suggested Gengetsu’s problem might be mental, startling him.