Chapter Summaries

Tetsuya planned to return to the Shinobi World, gather God Trees and fruits across timelines, and raise fighters to hunt the Ōtsutsuki. Unable to reach the Shinobi World directly, he used Hidan’s connection in the New World and arrived through a Golden Portal during a Jashin Cult sermon.

• Tetsuya decided to return to the Shinobi World and cultivate fighters by harvesting God Trees and fruits across different timelines.
• Tetsuya and Izuna joined their spatial powers, but found the Shinobi World’s coordinates too hazy to reach directly.
• Tetsuya located Hidan through the evil god space, finding him preaching to the Indigenous People of the New World.
• Hidan explained why Jashin kept the name of the Evil God, and the believers praised Jashin.
• Tetsuya, Madara, and Izuna emerged from a Golden Portal in the church, and Hidan and the believers hailed Tetsuya as Lord Jashin.

After returning from the New Continent, Tetsuya learned that Hidan had become a Jashin Cult leader and asked Shinada for a report on the Shinobi World. He heard that Sasuke had married an indigenous woman from the New Continent, leaving him free of the relationships others had expected for him.

• Tetsuya found Hidan preaching to New Continent followers with a Jashin Cult gospel written by Nagato, Yahiko, and Konan, and told him not to kill people indiscriminately or cause trouble.
• Tetsuya and his companions returned to the President's Residence, where Jigen went home to digest his gains and the others returned to their rooms.
• Tetsuya summoned Shinada and learned he had been away from the Shinobi World for almost two years.
• Shinada reported that Naruto Uzumaki had resigned as Sixth Hokage to join the Frontline Combat Unit, and Kakashi Hatake had become the Seventh Hokage.
• Shinada reported that Sasuke had married an indigenous woman he met during the Uchiha Clan's campaign across the New Continent, and Tetsuya concluded Sasuke was free of the fate others had planned for him.

After returning from space, Tetsuya explained to Kaguya how he and his companions hunted Ōtsutsuki and refined a God Tree, its fruit, and its planter into pills. Kaguya persuaded him to take her on the next hunt, then arranged to stay at his residence until it happened.

• Tetsuya spent seven days lounging at home until Kaguya entered his messy room.
• Kaguya told Tetsuya that Hagoromo had learned he went into space to hunt Ōtsutsuki after meeting Isshiki.
• Tetsuya explained that the group found a ripe, high-quality God Tree Fruit and refined it, the God Tree, and its Ōtsutsuki planter into pills.
• Kaguya complained that Tetsuya had forgotten she was his business partner, and he promised to bring her on the next hunt.
• Kaguya announced she would live at Tetsuya’s residence until the next hunt, and Tetsuya told Shinada to arrange a courtyard for her.

Tetsuya, Izuna, and Madara learned that Hashirama was scolding Tobirama for creating an artificial human from his own template, supposedly to preserve the Senju bloodline. After Hashirama beat Tobirama for disregarding life, Tobirama revealed that he had considered giving the artificial human Hashirama’s Wood Release, prompting Hashirama to suspect that he had used his cells.

• Tetsuya arrived at Hashirama’s courtyard and learned from Izuna that Tobirama had created an artificial human from his own template.
• Hashirama scolded Tobirama for claiming the Senju bloodline was dying out and for disregarding life with his experiments.
• Hashirama chased Tobirama around the courtyard and beat him until Tobirama admitted he had acted recklessly and disregarded life.
• Tetsuya asked whether Tobirama’s artificial human had a special kekkei genkai, and Madara and Izuna feared he had given it the Sharingan.
• Tobirama dismissed the Sharingan and said he would have chosen Hashirama’s Wood Release instead, leading Hashirama to demand to know whether Tobirama had used his cells.

Hashirama learned that Tobirama had created an artificial child with a natural sage body and insisted on seeing him, while Tetsuya and the others traveled to the rapidly advancing Research Department. They reunited with Orochimaru and Kimimaro, who said the child had been missing Tobirama.

• Tobirama explained that Hashirama's cells were too dangerous for cloning and that his artificial child was an ordinary clone modeled after himself with a natural sage body.
• Hashirama scolded Tobirama for keeping the child in a laboratory, and Tetsuya stopped him from beating his brother further.
• Tetsuya opened a Space-Time Gate to the Research Department, where he marveled at its flying vehicles and heard about plans to develop new lands and terraform the moon.
• Orochimaru and Kimimaro greeted Tetsuya and the others as they arrived at the Research Department.
• Tobirama asked why Orochimaru had not greeted him, and Orochimaru replied that the child had missed him.

Tetsuya and the others visited Orochimaru’s research facility to see the artificially cultivated children, who were being raised alongside staff members’ children in a kindergarten. Hashirama met Tobirama’s child, but his delight turned to fury when the boy said his name was Nineteen, or Type Two Number Nineteen.

• Orochimaru led Tetsuya, Hashirama, and Tobirama through his research facility to a kindergarten where cultivated children played with researchers’ children.
• Orochimaru explained that researchers could bring their children to the facility and that the cultivated children had adoptive parents among the staff.
• Orochimaru introduced his son Mitsuki, who greeted the visitors and received candy from Hashirama.
• Orochimaru pointed out Tobirama’s child, and the shy boy ran to Tobirama before Hashirama coaxed him over with candy.
• The boy introduced himself as Nineteen, or Type Two Number Nineteen, and Hashirama directed killing intent at Tobirama for giving him a serial-number name.

Hashirama renamed Tobirama’s son Nineteen as Senju Yūki, then scolded Tobirama for giving the child a number instead of a proper name. A week later, Tetsuya continued surveying Shinobi Worlds to choose a starting point for hunting Ōtsutsuki Qi.

• Hashirama offered to give Nineteen a new name, and the child happily accepted the name Senju Yūki.
• Tobirama refused to let Hashirama take Yūki home, explaining that Yūki was better off staying with his friends and caregivers.
• Madara decided to encourage the Uchiha Clan to have more children, while Izuna mocked Tobirama for naming his son after a test subject number.
• Hashirama dragged Tobirama away for a private talk, and Tetsuya, Madara, and Izuna went to the Tea House, where they found Kaguya.
• A week later, Tetsuya visited the Shinobi Worlds of Konoha’s founding era and Young Hagoromo, then considered which world to use as the starting point for hunting Ōtsutsuki Qi.

Tetsuya planned an Ōtsutsuki hunt in the Shinobi World of over a thousand years ago, but Husky reported trouble in the Demon Slayer World. Tetsuya postponed the hunt and decided to deal with the demons first, asking Izuna to accompany him.

• Tetsuya explained that traveling to the Shinobi World of over a thousand years ago would make the star map more accurate and described how Kaguya and Jigen could join later through a portal.
• Kaguya asked how they would divide the spoils, and Tetsuya promised everyone a share of the pills he refined.
• Husky alerted Tetsuya that something had happened in the Demon Slayer World, so Tetsuya postponed the hunt and dismissed the meeting.
• Jigen gave Tetsuya five copies of the star map, and Izuna and Madara stayed behind to ask what had happened.
• Tetsuya told Izuna that the Demon King had ambushed and defeated Izuna's clone after it fought Upper Rank One.
• Tetsuya decided to return to the Demon Slayer World to resolve the crisis and asked Izuna to go with him; Izuna agreed.

Tetsuya and Izuna left the Shinobi World and returned to the Demon Slayer World, where they caught up on their clones’ memories. Izuna revealed that Kokushibo had once been a Demon Slayer and had become enraged when he realized he could not match their strength.

• Tetsuya told Madara he could not bring him to another world, then instructed Shinada to seek help from Madara or Hashirama if trouble arose.
• Tetsuya and Izuna entered the Demon Slayer World through a golden Space-Time Gate and reunited with their worker clones in a Tokyo izakaya.
• Tetsuya learned that Sabito had become the Ice Hashira after developing Ice Breathing and slaying a Twelve Kizuki, while Giyu had become the Water Hashira.
• Tetsuya learned that his demon-slaying clone had also become a Hashira, though the worker clone did not know its title.
• Izuna told Tetsuya that Kokushibo had admitted he was once a Demon Slayer and had turned into a demon to gain power.
• Izuna recounted that Kokushibo attacked his clone, became enraged when he realized he was outmatched, and questioned why they possessed such great strength.

Tetsuya learned that Muzan feared he might reconstruct Sun Breathing and had targeted Izuna for that reason. After Tetsuya’s Demon-Slaying Clone returned and shared two years of memories, Tetsuya discovered he had become the Illusion Hashira by using Genjutsu on teammates before instantly killing demons.

• Izuna told Tetsuya that Muzan had mentioned Sun Breathing and tried to kill him to prevent him from reconstructing it.
• Tetsuya explained that Muzan was difficult to find and decided to wait for his Demon-Slaying Clone to arrive with information.
• Tetsuya’s Demon-Slaying Clone appeared, and Tetsuya received the clone’s memories from the past two years.
• Tetsuya learned that he had become the Illusion Hashira because he used Genjutsu on nearby teammates before quickly killing demons.
• Izuna laughed that casting Genjutsu on teammates to slack off suited Tetsuya.

Tetsuya and Izuna headed to the Hashira meeting, where the Demon Slayer Corps was preparing to judge Tanjiro for protecting Nezuko. The Hashira debated Tanjiro’s fate as Tetsuya and Izuna approached the headquarters.

• Tetsuya explained that the Hashira meeting would address Nezuko and the Corps’ plans after Izuna’s apparent defeat, then suggested surprising the Hashira with Izuna’s return.
• Tetsuya planned to meet Tanjiro and use events around him or the Twelve Kizuki to draw Muzan out.
• At headquarters, Tanjiro lay bound before the ten assembled Hashira, while Giyu asked Sabito why Izuna and Tetsuya had not arrived.
• Shinobu Kocho announced that Tanjiro would stand trial, but Kyojuro Rengoku and Tengen Uzui called for Tanjiro and Nezuko to be beheaded.
• Obanai Iguro argued that Giyu should also face consequences for protecting Tanjiro and Nezuko, and Shinobu began questioning Tanjiro about bringing a demon on missions.

Tanjiro defended Nezuko before the Hashira, and Kagaya Ubuyashiki explained why he had approved her place in the Demon Slayer Corps. The Hashira remained divided, but Kagaya urged them to consider Nezuko’s value in the fight against Muzan.

• Shinobu Kocho questioned Tanjiro about traveling with Nezuko, while Sanemi Shinazugawa stabbed Nezuko through her box.
• Tanjiro charged Sanemi with a rocket headbutt and guarded Nezuko as the Hashira reacted.
• Kagaya Ubuyashiki arrived and revealed he had approved Tanjiro and Nezuko’s arrangement, though most Hashira opposed it.
• Kagaya’s child read Sakonji Urokodaki’s letter, which vowed that Urokodaki, Sabito, Giyu, and Tanjiro would commit seppuku if Nezuko ate a human.
• Kagaya acknowledged the risks but noted Nezuko had gone two years without eating anyone, then argued that her connection to Muzan could help the Corps defeat him.

Sanemi Shinazugawa tested Nezuko’s restraint, and her refusal to attack him persuaded Kagaya Ubuyashiki to let her remain with Tanjiro. The meeting then turned to Izuna’s reported death, but Izuna arrived with Tetsuya, alive and well, as the Hashira gathered to discuss the worsening situation.

• Sanemi Shinazugawa cut his arm and exposed Nezuko to his blood, but Nezuko resisted her instincts and turned away from him.
• Kagaya Ubuyashiki accepted that Nezuko would not attack humans and told Tanjiro to defeat one of the Twelve Kizuki to win the Corps’ trust.
• Shinobu Kocho offered to treat the injured Tanjiro at the Butterfly Mansion, and Kagaya Ubuyashiki announced the loss of the Mirror Hashira, Izuna.
• Tetsuya arrived with Izuna, shocking the Hashira, Giyu, and Sabito, who had believed Izuna had fallen after fighting Kokushibo and Kibutsuji Muzan.
• Kagaya Ubuyashiki and the Hashira welcomed Izuna back, and the meeting began with all twelve Hashira assembled.

After Izuna shared what he knew about Kokushibo and Muzan, the Hashira meeting ended without a clear plan beyond increasing patrols. Kagaya suspected Tetsuya and Izuna were extraordinary and pinned his hopes on them, while Muzan remained unconcerned, believing his greatest threat was already dead.

• Izuna told the Hashira what he knew about Kokushibo and Muzan, and they agreed to increase patrols and search for demons.
• After Sabito and Giyu returned to demon hunting, Kagaya thanked Tetsuya and Izuna for helping the Demon Slayer Corps.
• Kagaya told Kiriya that Tetsuya and Izuna were special, while Tetsuya later explained to Izuna that Kagaya had likely noticed their unusual identities.
• Tetsuya and Izuna joked that they were a ferry carrying the Demon Slayer Corps to safety as they headed toward the Butterfly Mansion.
• Muzan learned that the Hashira had met but dismissed the development, believing he had already killed the man most likely to recreate Sun Breathing.

Muzan eased his pursuit of the Demon Slayer Corps after learning that the swordsman who might recreate Sun Breathing had died, while Tetsuya and Izuna left the Butterfly Mansion and began trying to reverse-engineer the First Breathing Style. After Tanjiro, Zenitsu, and Inosuke received orders to investigate the Mugen Train, Tetsuya and Izuna joined them, and Tetsuya offered to explain the connection between Fire Breathing and Flame Breathing.

• Muzan stopped pressing his demons to relentlessly pursue the Demon Slayer Corps after the likely successor to Sun Breathing had died.
• Tetsuya and Izuna left the Butterfly Mansion, discussed reverse-engineering the First Breathing Style, and departed to wander.
• Tanjiro recovered and completed his training, then asked Shinobu Kocho about Hinokami Kagura; she suggested he consult Kyojuro Rengoku about Flame Breathing.
• A Kasugai Crow ordered Tanjiro, Zenitsu, and Inosuke to investigate the Mugen Train and meet Kyojuro Rengoku after more than forty people went missing.
• Tetsuya and Izuna met the trio on the road and joined them on their way to the Mugen Train.
• Tetsuya asked Tanjiro about his search for Flame Breathing and offered to explain its relationship to Fire Breathing.

Tetsuya explained to Tanjiro how Fire Breathing might have descended from the First Breathing Style, then introduced himself and Izuna as the Illusion and Mirror Hashira. The group boarded the Mugen Train, where Tetsuya planned to kill Akaza, while Tanjiro went to find Kyojuro Rengoku.

• Tetsuya asked Tanjiro how he had learned Fire Breathing, and Tanjiro described his family’s Hinokami Kagura ritual dance.
• Tetsuya explained the origins of Breathing Styles and suggested that Tanjiro’s ancestor had adapted the First Breathing Style into the family dance.
• Tanjiro, Zenitsu, and Inosuke failed to recognize Tetsuya and Izuna until Tetsuya introduced them by their Hashira titles.
• The group reached the train station, and Tetsuya bought tickets for everyone and boarded the Mugen Train with them.
• Tetsuya returned the boys’ wrapped Nichirin Blades and planned to kill Akaza during the journey, while Tanjiro set out to meet Kyojuro Rengoku.

Tetsuya entered Enmu’s dream attack and his Evil God Space firewall nearly destroyed Enmu’s consciousness before Tetsuya sent him away. Enmu resumed his attack on the train, where Tanjiro confronted him after breaking free of his dream.

• Tetsuya stayed in his seat as Enmu’s Blood Demon Art put the passengers and Demon Slayer Corps swordsmen to sleep, while Izuna noticed the conductor’s strange power.
• Tetsuya entered the dream and was transported to the Evil God Space, where Enmu’s consciousness was pinned and overwhelmed by the Bone Throne’s pressure.
• Tetsuya realized his mental defenses had triggered the Evil God Space and waved Enmu out before the demon could die.
• Enmu regained consciousness atop the train, terrified by what he had seen, as Tanjiro and the others escaped their dreams and subdued the children Enmu controlled.
• Tanjiro rushed onto the roof, and Enmu taunted him with a dream of his father returning to life; Tanjiro drew his Nichirin Blade and vowed not to forgive him.

Enmu revealed that he had fused with the Mugen Train and attacked the passengers, while Tanjiro and Inosuke tried to save them. Tetsuya prevented Enmu from detaching the carriage he and Izuna occupied, and Inosuke ran forward to help the others as Tetsuya escorted the passengers to safety.

• Izuna asked Tetsuya whether they should help, but he waited for Tanjiro and the others to act.
• Tanjiro beheaded Enmu, learned that Enmu had fused with the train, and joined Inosuke in trying to rescue the passengers.
• Enmu revealed his true form and sent flesh and tentacles through the carriages, while Inosuke cut them down and led passengers toward the rear.
• Enmu tried to sever the carriages behind him, but Tetsuya pinned his carriage to the train with his Nichirin Blade.
• Inosuke reached Tetsuya's carriage, heard that the rear carriages were safe, and ran toward the engine to help Tanjiro.
• Tetsuya calmed the frightened passengers and sent them toward the rear carriages.

Tetsuya and Izuna helped protect the Mugen Train’s passengers while Tanjiro and Inosuke went after Enmu’s weak point. After the train derailed and Kyojuro separated its carriages, Tetsuya and Izuna stopped the rear cars safely, and the group sensed someone approaching.

• Tetsuya used genjutsu to guide passengers toward the rear carriages and warned Enmu not to interfere.
• Kyojuro cut through the train’s tentacles, assigned himself to protect five carriages, and sent Tanjiro and his companions to find Enmu’s weak point.
• Inosuke tore through the ceiling and raced over the roof toward the front of the train.
• Tetsuya told Kyojuro that he and Izuna had come for a person, a demon, or a Breathing Style.
• After Tanjiro found Enmu’s weak point, the Mugen Train derailed; Kyojuro separated the carriages, and Izuna stopped the rear three with his Nichirin Blade.
• Tetsuya, Izuna, and Kyojuro headed toward Tanjiro, but Tetsuya sensed someone arriving.

Tetsuya and Izuna held back from killing Akaza as he approached the injured Demon Slayers, while Kyojuro helped Tanjiro stop his bleeding. Akaza arrived, attacked Tanjiro, and then challenged Tetsuya and Izuna after sensing their overwhelming fighting spirit.

• Tetsuya decided to let Akaza approach and have some fun rather than kill him immediately.
• Kyojuro praised Tanjiro's Total Concentration: Constant and guided him in using his breathing to stop his abdominal bleeding.
• Tanjiro, Kyojuro, Tetsuya, and Izuna sensed Akaza as he emerged from the fog and targeted Tanjiro.
• Kyojuro intercepted Akaza's attack, cutting his arm, but Akaza instantly regenerated it.
• Akaza recognized Izuna from Muzan's memories, sensed the strength of Tetsuya and Izuna, and challenged them to fight.