Chapter Summaries

Shinada told Tetsuya how Toneri visited the Hyuga Clan, proposed to Hinata, and challenged Naruto to compete for her affection. After hearing that Toneri never stood a chance, Tetsuya received supplies and said he planned to use the brainstorming tools and crop seeds for business.

• Shinada explained that Neji had abolished the Hyuga Clan's Main Family and Branch Family system and was gradually taking control of the clan's affairs.
• Toneri visited the Hyuga Clan to see Hinata and proposed to her while Naruto was present.
• Neji watched as Toneri challenged Naruto to compete for Hinata, and Naruto accepted.
• Shinada told Tetsuya that Toneri had never stood a chance against Naruto.
• Shinada delivered Sealing Scrolls, brainstorming tools, and crop seeds, and Tetsuya said he intended to do business with them.

Tetsuya returned to Kaguya’s era with sealing scrolls and discussed plans to sell advanced farming tools and seeds. Hagoromo and Hamura arrived after studying Senjutsu with Gamamaru, and Tetsuya teased them about sealing their mother before learning they had come to see him.

• Tetsuya left Shinada in charge of the President’s Residence and used the Golden Portal to carry the Sealing Scrolls to Kaguya’s era.
• Tetsuya found Kaguya watching the rain and explained that he intended to build a business selling farming tools and seeds from his world.
• Kaguya said Hagoromo and Hamura had gone to learn Senjutsu from Gamamaru, and Tetsuya warned that the toad might turn them against her.
• Hagoromo and Hamura returned, denied that they planned to seal Kaguya, and said they had heard Tetsuya was back.
• Tetsuya threatened to kill Gamamaru for foreseeing his return, but the brothers defended the toad and said it had predicted his return would bring great changes to the Shinobi World.

Tetsuya recruited Hagoromo and Hamura to help modernize Kaguya’s era, then learned that Husky’s junior system had lost its host and needed help with a special mission. The chapter ended with Husky asking Tetsuya to save Another World.

• Tetsuya learned that Gamamaru had predicted his return and that Hagoromo and Hamura had volunteered to help his plans.
• Tetsuya enlisted Hagoromo and Hamura, then used their reputations to begin production reforms and guide farmers with advanced tools and seeds.
• Husky appeared and explained that his junior system’s host had died during the system’s graduation project assessment.
• Husky told Tetsuya that the special mission was to save Another World.

Tetsuya discussed whether he could truly save another world and learned that a failed transmigrator had died in the Demon Slayer world. He and Izuna traveled to an unfamiliar world, where bandits attacked them as they walked through the mountains.

• Tetsuya questioned whether changing a world's course counted as saving it, and Doggo told him about a transmigrator who became a demon and died when the sun rose.
• Tetsuya asked whether he could return from the new world whenever he wanted, but Doggo said traveling between worlds might not be easy.
• Tetsuya and Izuna wandered through the mountains, and Izuna recalled that he had joined the trip because he was bored in the President's Residence.
• Tetsuya joked that they should enjoy the new world while they were stuck there, and a bandit gang emerged from the bushes to rob them.
• Tetsuya called Izuna his samurai bodyguard, and Izuna drew his sword and attacked the bandits.

Izuna and Tetsuya encountered a man-eating demon in the woods, and Izuna tested his attacks after learning ordinary methods could not kill it. The demon survived being sliced apart, leaving Izuna eager to try other methods.

• Izuna killed the bandits, and he and Tetsuya continued through the sparsely populated mountains after dark.
• Izuna sensed an approaching creature, decapitated it, then severed its arm when it attacked him from behind.
• Tetsuya identified the creature as a man-eating demon and explained that ordinary attacks could not kill it.
• Izuna coated his blade in chakra flames and sliced the demon into pieces, but the demon's flesh began crawling back toward its head.
• Izuna decided to test other ways to kill the demon while the terrified creature struggled to reassemble itself.

Tetsuya and Izuna encountered Sabito and Giyu in the mountain woods, where Sabito explained how Nichirin Blades kill demons. Izuna examined Sabito’s sword and discovered its unusual properties, while the group began getting acquainted.

• Tetsuya and Izuna met Sabito and Giyu as the boys arrived in the woods.
• Sabito warned Izuna that ordinary swords could not permanently kill the demon, which lunged at Izuna and was cut apart again.
• Sabito used his Nichirin Blade to kill the demon, turning its remains to ash.
• Sabito, Giyu, Izuna, and Tetsuya introduced themselves to one another.
• Sabito let Izuna inspect his Nichirin Blade, and Izuna found that it had poor compatibility with chakra but was made through a special process.

Tetsuya and Izuna met Sabito and Giyu after they defeated a demon and admitted they were lost in the mountains. After spending the night in a nearby settlement, Tetsuya suggested that Izuna try the Demon Slayer Corps selection, leaving their next path undecided.

• Tetsuya returned Sabito's Nichirin Blade and admitted that he and Izuna were lost.
• Sabito and Giyu explained that they were heading to Mount Fujikasane for selection and had tracked a nearby demon, which they had already dealt with.
• Giyu gave Tetsuya and Izuna directions to a village, and the four traveled there together.
• Sabito and Giyu explained the Demon Slayer Corps to Izuna and let the two adults stay at their temporary lodgings.
• Izuna asked Tetsuya what he planned to do next, and Tetsuya suggested they try the Demon Slayer Corps selection.
• Izuna reminded Tetsuya that he usually built businesses in new worlds, while Tetsuya wondered whether he could try a different path.

Tetsuya and Izuna decided to take the Demon Slayer Corps selection on Mount Fujikasane, and Tetsuya demonstrated his swordsmanship against Giyu. After Izuna revealed that they were ninja, Sabito watched him throw shuriken into a tree.

• Tetsuya told Giyu and Sabito that he and Izuna planned to take the selection, and Sabito warned them that it could be fatal.
• Izuna said Tetsuya was stronger than him, so Tetsuya challenged Giyu to a trial fight.
• Tetsuya and Giyu crossed swords, and Tetsuya proved faster while Sabito watched his unfamiliar swordsmanship.
• Izuna identified Tetsuya's style as Hatake Swordsmanship and told Sabito that they were ninja who had trained in the mountains.
• Izuna threw shuriken into a tree, impressing Sabito with the proof that ninja existed.

Tetsuya and Izuna traveled with Sabito and Giyu to Mount Fujikasane and began the Demon Slayer Corps selection alongside them. After the four split up to take the test, Tetsuya and Izuna secretly followed Sabito and Giyu to observe their techniques.

• Tetsuya demonstrated his strength to Giyu, then returned Izuna's sword and joined Sabito and Giyu on the journey to Mount Fujikasane.
• During four days of travel, Sabito killed the man-eating demons they encountered along the way.
• At Mount Fujikasane, Izuna sensed several demons and identified one as stronger than the others.
• Two Demon Slayer Corps swordsmen announced that the participants had to survive seven days on the mountain, and the selection began.
• Sabito and Giyu declined Tetsuya's offer to team up, and the four wished each other luck before entering the mountain.
• Tetsuya and Izuna leaped into the treetops and secretly followed Sabito and Giyu to study their techniques.

During the Demon Slayer Selection on Mount Fujikasane, Sabito and Giyu fought demons and rescued other candidates while Tetsuya and Izuna observed their Water Breathing. Giyu collapsed from exhaustion after saving another boy, and a black-clad figure arrived to kill the demon attacking him.

• Sabito killed a demon that was about to eat a candidate, and Tetsuya followed him to observe his fighting.
• Tetsuya studied Sabito's Water Breathing, while Izuna watched Giyu fight and learned the techniques.
• Giyu killed several demons and rushed to rescue a candidate despite being exhausted.
• Giyu and Sabito killed a demon together, but another demon struck Giyu and shattered his mask.
• As Giyu struggled to stand against the horned demon, a black-clad figure descended and cleaved it in two.

Izuna healed Giyu, revealed that he had learned Water Breathing by watching him, and traveled east with Giyu and two other boys while they hunted demons. As the mountain’s demons dwindled, Giyu wondered whether Sabito was responsible for the other kills.

• Izuna used six paths yang power to heal Giyu’s head wound and confirmed that he had copied Water Breathing after watching Giyu fight.
• Giyu agreed to travel with Izuna and two other boys toward the east, where sunlight would reach first.
• Izuna and Giyu discussed Water Breathing and used the demons they encountered as training targets.
• Sabito raced around Mount Fujikasane, rescuing young people and hunting demons through the day and night, while Tetsuya followed him.
• After Giyu noticed they had not encountered a demon for some time, Izuna said someone else was hunting them, and Giyu asked if it was Sabito.

On Mount Fujikasane, Sabito confronted the Hand Demon, who taunted him about killing Sakonji Urokodaki’s disciples. After the demon broke Sabito’s sword and grabbed him, another swordsman descended to attack.

• Tetsuya watched as Sabito, Izuna, and Giyu hunted down the remaining demons on Mount Fujikasane.
• Sabito rescued a boy from the Hand Demon and sent him to safety.
• The Hand Demon recognized Sabito’s mask and revealed that he had eaten twelve of Sakonji Urokodaki’s disciples.
• Sabito attacked the demon repeatedly but failed to find his weakness, and the Hand Demon broke his Nichirin Blade.
• The Hand Demon grabbed Sabito and prepared to eat him, but another figure descended with Water Breathing, Eighth Form-Waterfall Basin.

Giyu, Sabito, Izuna, and Tetsuya joined forces to kill the Hand Demon, and their actions led to every demon on Mount Fujikasane being slain during the selection. Kagaya Ubuyashiki ordered the Corps to admit everyone who had passed.

• Giyu saved Sabito from the Hand Demon and fought it with Water Breathing.
• Izuna arrived and wounded the Hand Demon with a powerful slash, while Tetsuya joined them and gave Sabito a katana.
• Izuna asked whether Tetsuya had learned the technique, and the four swordsmen stood together against the Hand Demon.
• Giyu, Sabito, Izuna, and Tetsuya used Water Breathing together and killed the Hand Demon before it could scream.
• Seven days later, the selection ended with everyone descending Mount Fujikasane, and the Corps learned that all its demons had been killed.
• Kagaya Ubuyashiki ordered the Corps to admit everyone who had passed the selection.

After passing Final Selection, Tetsuya, Izuna, Giyu, and Murata chose to become frontline Demon Slayer Swordsmen, received Kasugai Crows, and selected ore for their Nichirin Blades. Giyu invited Tetsuya and Izuna to Mount Sagiri to meet his teacher, and Tetsuya agreed to go.

• The Chief Examiner let the successful candidates choose between frontline swordsmanship and support work, and Murata chose to fight demons alongside Tetsuya.
• Tetsuya received a Kasugai Crow named Yoru and remembered that Sasuke had chosen not to resurrect Itachi.
• Tetsuya and Izuna selected pieces of scarlet crimson iron sand for their Nichirin Blades, and the Chief Examiner explained that the blades and uniforms would be delivered to their homes.
• Giyu invited Tetsuya and Izuna to Mount Sagiri to meet his teacher, Urokodaki, after learning they had mastered Water Breathing quickly.
• Tetsuya agreed to visit Urokodaki, hoping he might know where they could meet Swordsmen who used other Breathing Styles.

Sabito and Giyu returned safely to Mount Sagiri, where they reunited with Sakonji Urokodaki and introduced him to Tetsuya and Izuna. After hearing about the selection and the Hand Demon's defeat, Urokodaki began demonstrating Water Breathing for Izuna, when a mysterious message appeared.

• Sakonji Urokodaki welcomed Sabito and Giyu home and embraced them.
• Giyu introduced Tetsuya and Uchiha Izuna as fellow Demon Slayers who had learned Water Breathing by watching him and Sabito.
• Tetsuya claimed that he and Izuna were the last members of the Konoha and Uchiha ninja lineages, and Urokodaki invited them into his cabin.
• Sabito and Giyu recounted their journey and the selection, including the Hand Demon's death, and Tetsuya comforted Urokodaki about his fallen disciples.
• Urokodaki took Izuna to the training clearing and began demonstrating Water Breathing with his Nichirin Blade.
• A mysterious message appeared: “My dear master, did you miss me?”

Tetsuya reunited with Husky and learned that their mission was to protect the Demon Slayer Corps from Muzan, who had gained memories of his future defeat. Husky warned Tetsuya against acting recklessly without approval, but Tetsuya ended the chapter urging him to accept confinement so they could witness demons and slayers fighting together.

• Tetsuya welcomed Husky back and heard that he had been handling administrative matters for their assignment.
• Husky told Tetsuya that the higher-ups knew he had brought Uchiha Izuna to this world and wanted him to follow procedure.
• Husky explained that a transmigrator had indirectly given Muzan memories of the Demon Slayer Corps defeating him, prompting their mission to protect the Corps.
• Tetsuya considered killing Muzan, but Husky warned that acting without approval could provoke the world's will and make them targets.
• After learning that Husky might be confined if their mission went wrong, Tetsuya suggested he take the blame so they could see demons and slayers team up.

Tetsuya and Izuna completed their training on Mount Sagiri as Sabito and Giyu improved their Water Breathing. Hotaru Haganezuka arrived with the four swordsmen’s Nichirin Blades, and he was shocked when Tetsuya’s and Izuna’s blades turned black.

• Tetsuya tried to work backward from Water Breathing to reconstruct Sun Breathing while Izuna continued training Sabito and Giyu.
• Urokodaki welcomed Hotaru Haganezuka, who brought four Nichirin Blades and Demon Slayer uniforms for the swordsmen who passed selection.
• Giyu and Sabito drew their new blades, which turned blue in their hands.
• Tetsuya and Izuna drew their blades, and Haganezuka was startled to see both turn black.

After receiving their Nichirin Blades, Tetsuya and Izuna left Mount Sagiri to continue their Demon Slayer journeys. Over the next two years, Izuna learned Flame Breathing, killed a Lower Rank, and was promoted to Hashira.

• Hotaru Haganezuka explained that Nichirin Blades changed color based on their wielders and left after delivering the blades.
• Tetsuya and Izuna said goodbye to Giyu, Sabito, and Urokodaki, then left Mount Sagiri.
• Tetsuya and Izuna realized neither had asked Urokodaki where to find other Breathing Style users, so they continued down the mountain without a plan.
• During their two years on the road, Tetsuya and Izuna split up, and Izuna met swordsmen who used different Breathing Styles.
• Izuna learned Flame Breathing from a flame-haired swordsman, rose through the Corps ranks, and killed a Lower Rank of the Twelve Kizuki with one stroke.
• Kagaya Ubuyashiki summoned Izuna and promoted him from Kinoe to Hashira.

After spending two years in the Demon Slayer world, Tetsuya and Izuna reopened a portal and returned to the Shinobi World. Shinada reported that the world was stable and that Naruto had married Hinata, while Toneri had offered the couple his blessings.

• Tetsuya told Izuna how he took over a failing izakaya, expanded into Kyoto property, and used shadow clones to handle his Demon Slayer Corps duties.
• Tetsuya revealed that he had accumulated enough wealth to reopen the portal, and Izuna agreed to return to the Shinobi World with him.
• Tetsuya and Izuna left shadow clones behind to cover emergencies and stepped through the Golden Portal.
• Tetsuya and Izuna arrived at the President's Residence, where Shinada welcomed them and reported that the Shinobi World was operating peacefully under Tetsuya's rules.
• Shinada told Tetsuya that Naruto had married Hinata a year earlier and that Toneri had offered them his blessings.

Shinnō confirmed that Chiba Tetsuya had vanished and set out to overthrow the Shinobi World. Tetsuya returned to the Rain Province to reunite with his disciples, but Neji soon reported an attack on the Fire Province by strange flying people.

• Shinnō burned his coded letters after confirming that Tetsuya was gone, then headed for the Land of Fire to begin his plan.
• Tetsuya visited Nagato and Yahiko at the Rain Shadow Office, where they welcomed him back after his two-year absence.
• Tetsuya learned that Konan had become the Chiba Commerce Association’s second-generation advertising star and that Chiba Satoru was running the association.
• Tetsuya shared a meal with his disciples and noticed how much Neji had changed since taking over as head of the Hyuga Clan.
• Neji left the meal to answer a call, then returned and told Tetsuya that strange people who could fly were attacking the Fire Province.