Chapter Summaries

After changing the course of events, Gengetsu planned further Sage and Bloodline experiments while keeping the Four-Tails. The chapter ended with Minato and Kushina discovering that Kurama had already begun training baby Naruto by letting him play in the Sealed Space.

• Gengetsu decided to keep the Four-Tails and focus on cultivating while Akatsuki caused trouble elsewhere.
• Gengetsu planned experiments into brain Sage Transformation and the realm beyond Sage, aiming to master five Bloodline powers tied to the Five Elements.
• Gengetsu discovered that Kurama had been caring for Naruto inside the Sealed Space and had started his training early.
• Gengetsu told Kushina that Naruto was playing with Kurama, then brought Minato and Kushina into the Sealed Space to see him swinging on Kurama's tails.

Gengetsu persuaded the Nine-Tails to learn ninjutsu so he could become a stronger teacher for Naruto. The Nine-Tails agreed to train under Gengetsu and Kushina, while Gengetsu left part of his Chakra in the Sealed Space to begin teaching him.

• Gengetsu challenged the Nine-Tails to learn techniques beyond Chakra Mode, arguing that ninjutsu, sealing, and genjutsu could help him resist powerful opponents.
• Gengetsu compared the Nine-Tails with Ao Cang, who had mastered several Chakra Nature Transformations and Kekkei Genkai, and explained that Ao Cang trained to avoid being captured like a Tailed Beast.
• Ao Cang appeared in the Sealed Space and urged the Nine-Tails to trust Gengetsu, while Kushina offered to teach him too.
• Ao Cang described how Naruto could use the Soul Contract to become the Nine-Tails' close partner and argued that the Nine-Tails would be safer if he grew stronger.
• The Nine-Tails agreed to learn from Gengetsu, who left some of his Chakra behind to start teaching him before withdrawing from the Sealed Space.

After Iwa Ninja threatened to restart the war, Minato sent Fugaku Uchiha to lead reinforcements to the Land of Grass, where Kakashi and Guy were trapped and exhausted. Kakashi awakened Ice Release in a desperate fight, and Fugaku’s forces arrived just as the two collapsed.

• Shisui Uchiha led his team to defeat three elite Kirigakure squads, while four-year-old Itachi Uchiha experienced war and killed for the first time.
• Minato learned that the Iwa Ninja planned to break the alliance and restart the war, then agreed to send Fugaku Uchiha with reinforcements and a warning letter.
• In the Land of Grass, Guy offered to cover Kakashi’s retreat, but Kakashi refused to abandon him and later rushed to save him from the Iwa Ninja.
• Kakashi fought through his dwindling strength, awakened Ice Release to kill three Iwa Ninja and interrupt their lightning attack, then retreated with Guy.
• Surrounded and nearly out of Chakra, Kakashi and Guy prepared to attack, but Fugaku Uchiha’s forces struck down the Iwa Ninja and arrived as the two collapsed.

Gengetsu read reports showing the war with Iwa and Kirigakure had eased, while Akatsuki continued expanding its influence. In the Forest of Death, he learned a Shadow Clone had mastered Lava Release and tested an Ice-enhanced Rasenshuriken.

• Gengetsu and Minato discussed Iwa's retreat, Akatsuki's growing reach, and the need to watch Kumogakure during peace negotiations.
• Gengetsu concluded that the Third Shinobi World War was nearing its final stages after Kirigakure withdrew and the Fourth Mizukage became the Three-Tails' Jinchuriki.
• Gengetsu considered that Obito might control Yagura again and decided it could present an opportunity if handled carefully.
• A Shadow Clone's memories revealed that it had mastered Lava Release, surprising Gengetsu, who had been focusing on Magnet Release and Dust Release.
• Gengetsu fused Earth Release and Fire Release Chakra to produce Lava Release, then infused a Rasenshuriken with Ice Release Chakra and hurled it toward the ground to test its power.

At a dumpling shop, Gengetsu revealed that Kakashi had learned Ice Release from him and encouraged his friends to train toward developing Kekkei Genkai. Later, at a meeting about Minato’s proposed Special Training Division, Gengetsu offered Kurama Unkai a way to address the declining Kurama Clan’s problems, but had not yet explained the solution.

• At the dumpling shop, Gengetsu explained that precise Chakra control could conserve Chakra and that Kekkei Genkai could be developed by fusing two Chakra Nature Transformations.
• Kakashi revealed that Gengetsu had taught him Ice Release, and Gengetsu encouraged the others to train and keep the information confidential.
• Kurenai left to train, Asuma followed, and Gengetsu told Anko that he would train her at Orochimaru’s request while Orochimaru was away traveling.
• At a meeting of Konoha’s leaders and clan heads, Minato proposed reforming the ANBU and establishing the Special Training Division, but the major Ninja Clans hesitated to support it.
• Gengetsu asked Kurama Unkai about the Kurama Clan’s lack of Kekkei Genkai wielders and explained that the clan’s decline also stemmed from its weak constitution and reliance on genjutsu.

Gengetsu secured unanimous support for the Special Training Division by offering instruction in medical ninjutsu, chakra nature transformation, and Kekkei Genkai cultivation. Minato set its selection rules and instructor roster, while Gengetsu later returned to his laboratory, where his Sage Transformation clones continued their experiments.

• Gengetsu announced that he would teach methods for cultivating Wood, Ice, Metal, and Lava Release, and Fugaku Uchiha confirmed that Kakashi Hatake had mastered Ice Release through Gengetsu’s instruction.
• Fugaku Uchiha, Hyuga Hiashi, the Kurama Clan, the Shimura Clan, and the other ninja clans agreed to join the Special Training Division.
• Minato announced that the division would begin in one month, accept recommendations, and assess candidates for ANBU reserve training based on ability rather than clan status.
• Minato established that trainees would choose a foundational specialty and announced the division’s instructors, including Gengetsu, Kushina, Yuhi Shinku, and Sarutobi Matsu.
• Gengetsu visited Tobirama Senju and then returned to the Shikkotsu Forest Laboratory Base, where Sage Number Seven neared completion of Sage Transformation of the six bowels.

Gengetsu tested whether Kekkei Genkai-enhanced Sage Chakra could accelerate Sage Transformation, while Fugaku Uchiha sought his advice on the Mangekyō Sharingan and how to overcome its limitations. The chapter ended with Fugaku entrusting Gengetsu with a scroll listing the Sharingan preserved by the Uchiha Clan.

• Gengetsu and Sage Number Seven decided to test their theory by using Lava Release Sage Chakra to transform Gengetsu's heart.
• Gengetsu began cultivating, and after three days Shisui Uchiha brought him to meet Fugaku Uchiha.
• Fugaku asked Gengetsu about the Mangekyō Sharingan and whether there was a way to achieve the Eternal Mangekyo Sharingan without transplanting a close relative's eyes.
• Gengetsu explained that the Mangekyō's side effects came from insufficient power and discussed Indra Otsutsuki, the Sage of Six Paths, and Obito Uchiha as examples.
• Fugaku gave Gengetsu a scroll listing the Sharingan preserved by the Uchiha Clan and asked him to research them.

Gengetsu mastered Magnet Release through training in Shikkotsu Forest and discovered it could generate immense electrical power. The Uchiha Research Facility began construction with the village’s approval, while Gengetsu continued focusing on his abilities.

• Gengetsu stored the Sharingan he had collected and returned to Shikkotsu Forest to continue his Sage Transformation training.
• Shikaku Nara supported the Uchiha Clan’s Laboratory Base proposal, and Hiruzen Sarutobi approved it with strengthened defenses jointly handled by the Uchiha Clan and ANBU.
• The Uchiha Research Facility began construction, funded and staffed by the Uchiha Clan, while Gengetsu assigned Shizune and Kaori to assist.
• After nearly half a month, Gengetsu’s Shadow Clone mastered Magnet Release in Dragon Vein Chakra Mode and gathered grains of multiple metals.
• Gengetsu’s Shadow Clone tested the ability by creating a vast electric field and a towering pillar of purple lightning before dispersing from exhaustion.
• Tsunade arrived to investigate the disturbance, and Gengetsu explained how Magnet Release could convert magnetic fields into electricity.

Gengetsu explained his theories about Magnet Release to Tsunade and used a sealing technique to investigate its chakra natures. The test ended in a massive explosion, but Gengetsu survived and discovered that Magnet Release contained five chakra nature transformations.

• Gengetsu told Tsunade that Magnet Release could develop from controlling metal to manipulating microscopic elements and natural magnetic fields.
• Gengetsu entered Dragon Vein Chakra Mode and showed Tsunade the Magnet Release Chakra his Shadow Clone had developed by sensing the geomagnetic field.
• Gengetsu's Split Body clone used the Yin-Yang Seal to analyze the Magnet Release Chakra, separating Yang, Yin, Lightning, Earth, and Fire natures.
• The five chakra natures reacted violently and exploded, destroying the clone's arms and blasting Gengetsu into a crater.
• Tsunade rushed to Gengetsu, who survived by using Intangibility and wondered what to call an ability with five Chakra Nature Transformations.

Gengetsu analyzed Magnet Release and continued training Anko while learning Orochimaru had joined Akatsuki. At Shikkotsu Forest, Gengetsu’s Sage Transformation advanced through his heart, and he realized blood circulation could carry Sage Chakra throughout his body.

• Gengetsu concluded that his Magnet Release required six Chakra Nature Transformations, while Tsunade explained how Kekkei Tōta differed from Kekkei Genkai and Kekkei Mōra.
• Gengetsu resumed Anko’s training, and she practiced running across a river while carrying a huge rock.
• Gengetsu received Orochimaru’s scroll and inferred that Orochimaru had been recruited into Akatsuki, whose operations were about to begin.
• Gengetsu’s Shadow Clones focused on mastering Magnet Release as he continued Sage Transformation training at Shikkotsu Forest.
• Gengetsu’s heart absorbed Natural Energy and circulated Sage Chakra through his blood, leading him to realize that blood could safely carry it throughout his body.

Gengetsu explained how blood circulation could carry Immortal Force through his body and demonstrated the power of his complete Sage Transformation. After testing his speed and strength against Tsunade, he concluded that the state resembled the Eight Gates Formation.

• Gengetsu told Tsunade that transforming the pineal gland and hematopoietic organs could let blood cells deliver Immortal Force throughout the body.
• Gengetsu explained that his fully transformed heart cells had awakened a subconscious ability to absorb Natural Energy, making his heart and circulation far more powerful.
• Gengetsu demonstrated heightened neural reactions and Dynamic Vision, then moved so quickly that Tsunade could not sense any Chakra eruption.
• Gengetsu challenged Tsunade to a taijutsu match, overpowering her with physical strength and reacting in advance to her movements.
• Tsunade called off the match, and Gengetsu explained that his rapid circulation and Immortal Force-enhanced body produced power similar to or greater than Monster Strength and comparable to the Eight Gates Formation.

Gengetsu and Tsunade redirected their Sage Transformation research toward the Internal Organs and established the Five Elements Realm as the fifth cultivation realm. Later, Gengetsu warned Jiraiya against pursuing Orochimaru in Amegakure and revealed that Orochimaru might be Konoha's spy inside Akatsuki.

• Gengetsu explained that Sage energy could lessen but not eliminate the Eight Gates Formation's damage, and Tsunade redirected his focus away from brain experiments.
• Gengetsu and Tsunade assigned Sage Number Seven to test full-body Sage Transformation while Gengetsu pursued further transformations and Kekkei Genkai powers.
• Gengetsu formally named the fifth realm the Five Elements Realm and assigned his clones to develop several Kekkei Genkai abilities.
• Jiraiya told Gengetsu that Orochimaru had joined Akatsuki and said he planned to find him, despite Minato, Kushina, and Gengetsu warning him about the danger in Amegakure.
• Gengetsu said Orochimaru might be serving as Konoha's spy within Akatsuki, leaving Minato, Kushina, and Jiraiya stunned.

Gengetsu reunited Jiraiya with news that Orochimaru had become a spy, then began a Sharingan experiment at the Uchiha Research Facility. The chapter ended as a clone with transplanted one-tomoe Sharingan began receiving Yin and Yang Release Chakra through its pineal gland.

• Gengetsu showed Jiraiya Orochimaru’s intelligence scroll, and Jiraiya laughed with relief while Minato joked about issuing an S-Rank Missing-nin bounty.
• Gengetsu, Minato, Kushina, and Jiraiya shared dinner, where Jiraiya tried Minato’s unusually sweet-and-sour grilled fish and hurried away afterward.
• Gengetsu assigned four Wood Clones to train Anko, work at the medical shop, meet Kanzuki Chiba and Uchiha Shinsui, and visit the Uchiha Research Facility while he trained in Shikkotsu Forest.
• Gengetsu showed Fugaku Uchiha and Shisui Uchiha a clone body cultivated from his own cells and explained his theory that Sharingan evolution involved Yin and Yang Release.
• Kaori transplanted a pair of one-tomoe Sharingan into the clone, and Gengetsu used a Shadow Clone and the Spirit Transformation Technique to control its body.
• The clone channeled Yin and Yang Release Chakra into its pineal gland, which swelled as illusions began appearing in its mind.

Gengetsu examined a Sharingan illusion of Konoha’s destruction and deduced that Izanagi relied on Yin-Yang Release to turn illusion into reality. When the illusion showed Tsunade gravely injured, he lost his composure and fought Deva Path Pain, then discovered White Zetsu had taken out his clone and was summoning the Senju Buddha.

• Gengetsu explored the illusion and reasoned that Izanagi could resurrect its user through the combined powers of Yin Release and Yang Release.
• Shizune led Gengetsu to Tsunade, whose apparent death overwhelmed him despite his knowledge that the scene was an illusion.
• Gengetsu created a clone to treat Tsunade, transformed into a Purple Dragon, and clashed with Deva Path Pain using a Divine Dragon Spiraling Sphere.
• Gengetsu noticed that Brother Minato and Sister Kushina’s Chakra was absent and realized his clone had been taken out.
• Gengetsu saw White Zetsu wrap around Tsunade and summon a colossal Senju Buddha, then vowed to kill him.

Gengetsu and the Uchiha tested whether combining Yin and Yang Release Chakra could evolve a Sharingan, and the clone successfully advanced from one tomoe to three. Their experiment revealed that the process creates a dangerous self-generated illusion that can trap its user and consume their life or destroy their eyes.

• Gengetsu used his Heavenly Eye and Adamantine Soul Chains to break the illusion in which his clone fought Madara Uchiha.
• The clone awoke with a Three-Tomoe Sharingan, and it explained that Yin and Yang Release Chakra had triggered a powerful illusion originating in the user.
• Fugaku Uchiha and Shisui Uchiha realized that even skilled genjutsu users might be unable to recognize or escape the illusion.
• Gengetsu and the clone warned that remaining trapped could drain the user's Chakra, burst their eyes, or drive the Sharingan to evolve at the cost of their life.
• Shisui Uchiha explained that the illusion gradually makes its victim forget it is unreal, while Gengetsu considered how few people could break it from outside.

Gengetsu analyzed the Yin-Yang Illusion World with Fugaku Uchiha, Shisui Uchiha, Naohide, and Kaori, explaining how the subconscious trapped the conscious mind in an almost perfect illusion. The group identified Yin-Yang Release and the illusion’s internal Chakra as key to understanding how it might be broken, but the question of whether its inhabitants were truly real remained unresolved.

• Naohide dismissed the energy-consuming clone, and the group moved from the laboratory to a nearby conference room.
• Gengetsu named the naturally arising genjutsu the Yin-Yang Illusion World and explained that the subconscious cast it on the conscious mind.
• Fugaku Uchiha and Gengetsu explained how familiar people and emotional distress could make the illusion nearly impossible to distinguish from reality.
• Shisui Uchiha proposed using a Transcription Seal to awaken someone trapped in the illusion, and Gengetsu confirmed that it could also be broken from within.
• Kaori reasoned that the illusion contained Chakra and replicated abilities from the Shinobi World, which Gengetsu identified as a possible key to escaping it.
• Shisui Uchiha and Fugaku Uchiha explained Yin-Yang Release, and Fugaku suggested that the people inside the illusion might actually be real.

Gengetsu explained how the Yin-Yang Illusion World worked and how someone trapped inside could escape, while his students and the Uchiha considered its dangers. Meanwhile, training continued, and Anko mastered walking on water only for Gengetsu to increase her gravity and leave her stuck on the ground.

• Gengetsu explained that the Yin-Yang Illusion World contained real, microscopic lifeforms and that someone inside could escape by killing everyone, taking their power, and breaking through the illusion.
• Shisui Uchiha and Fugaku Uchiha considered the emotional cost of breaking the technique from within and the difficulty of escaping from outside.
• Kanzuki Chiba and Uchiha Shinsui trained under a Shadow Clone, then exchanged cultivation insights with Gengetsu's Wood Clone as Kanzuki Chiba began learning senjutsu.
• Kanzuki Chiba failed to sense Natural Energy before sunset but encouraged herself to keep trying.
• Anko learned to walk on water while carrying a boulder and demanded that Gengetsu teach her ninjutsu.
• Gengetsu increased Anko's gravity fivefold and left, prompting her to curse him while she struggled on the ground.

Gengetsu began training Itachi Uchiha after Fugaku Uchiha assigned him as Itachi’s mentor, while continuing to push Anko’s training. He introduced Itachi to gravity-based training and left him to begin lifting a boulder and climbing a cliff.

• Gengetsu watched Anko recover her stride and walk home without accepting help, then dispelled his Shadow Clone.
• Fugaku Uchiha asked Itachi how to break the Yin-Yang Illusion World, praised his answer, and told him to train under Master Gengetsu.
• Gengetsu challenged Anko to master Earth Release Chakra Nature Transformation within half a month for a month of dango and red bean soup, and increased her training with sixfold gravity.
• Shisui brought Itachi to Gengetsu, who asked Itachi about his dream; Itachi said he wanted peace in the Shinobi World and an end to war.
• Gengetsu flew with Itachi using the Gravity Technique and explained that it was a form of Dust Release Kekkei Tōta.
• At the river, Gengetsu assigned Itachi to lift a large boulder and climb a cliff to train his Chakra control.

Gengetsu taught Itachi the importance of Chakra control and put him through demanding training alongside Anko. After Itachi rapidly caught up with Anko, Gengetsu used Dragon Vein Chakra to begin teaching them how to nourish their cells through precise control.

• Gengetsu explained how Chakra control improved combat ability and warned Itachi that overusing Chakra could damage the mind, cells, and lifespan.
• Itachi trained by climbing a cliff with a large stone and made rapid progress, while Anko adapted to her changed gravity and challenged herself not to be surpassed.
• Gengetsu told Anko that the five-year-old Itachi was a Uchiha genius, and Anko grew envious as she watched Gengetsu give him extra care.
• Two days later, Anko treated Gengetsu and Itachi to dumplings and used the meal to get advice from Itachi.
• Itachi and Anko trained together until they collapsed, and Gengetsu gave them Dragon Vein Chakra to nourish their cells through Chakra control.

Gengetsu completed transforming his bone marrow through Sage Transformation and discussed Kekkei Genkai with his clones at the Laboratory Base. After Gengetsu deduced that the Sharingan arose from Yin and Yang Release working together, Tsunade asked whether it fused Yin Release with physical energy.

• Gengetsu completed the Sage Transformation of his bone marrow and hurried to the Laboratory Base.
• Sage Number Seven reported that his Byakugan was growing stronger, while the Heavenly Eye had not yet changed qualitatively.
• Old Eleven wondered whether the same Chakra Nature Transformations could create different Kekkei Genkai, and his attempt to produce snow instead made hail.
• Gengetsu deduced that the Sharingan developed from the Rinne Sharingan and was formed through the interaction of Yin Release and Yang Release.
• Tsunade and Hashirama Senju arrived, and Tsunade asked whether the Sharingan involved a fusion of Yin Release and physical energy.