Arc 20Across the Demon World

Tetsuya and Izuna entered a world threatened by demons, joined the Demon Slayer Corps, and spent two years learning its ways while Tetsuya built a business. They returned to a peaceful Shinobi World, where Neji reported that strange flying people were attacking the Fire Province.

  • Tetsuya showed young Madara the future Black Zetsu had manipulated, then Madara made peace with Hashirama and trapped and destroyed Black Zetsu.
  • Tetsuya brought Hashirama and Tobirama together with their resurrected counterparts, and urged Hashirama to pursue peace by uniting the shinobi world through war.
  • Tetsuya visited Kaguya’s era and recruited Hagoromo and Hamura to help reform farming before Husky assigned him a mission to save another world.
  • Tetsuya and Izuna encountered demons and met Sabito and Giyu, then joined the Demon Slayer Corps selection and learned Water Breathing by observing them.
  • Tetsuya, Izuna, Sabito, and Giyu killed the Hand Demon together, passed selection, and received black Nichirin Blades before leaving Urokodaki’s mountain.
  • Over two years, Tetsuya built a business while Izuna learned Flame Breathing, rose to Hashira, and killed a Lower Rank of the Twelve Kizuki.
  • Tetsuya and Izuna returned through the Golden Portal, and Shinada told Tetsuya that Naruto had married Hinata and the Shinobi World remained peaceful.
  • Tetsuya reunited with Nagato, Yahiko, and his disciples, then Neji reported that strange people who could fly were attacking the Fire Province.
Chapters 476–500 Vol. 5 Read

Ch. 476I took Madara through the history of the Shinobi World

Tetsuya showed young Madara two possible histories of the Shinobi World, revealing how Madara’s plans led to betrayal and war in one timeline and how Tetsuya changed the other. The genjutsu ended with young Madara stunned by Tetsuya’s influence on the world, as Tetsuya asked whether he had found the answers he wanted.

  • Tetsuya used genjutsu to show young Madara a future in which Hashirama defeated him, Madara survived in secret, and Black Zetsu ultimately betrayed him during the Fourth Shinobi World War.
  • Young Madara realized that Black Zetsu had manipulated the Uchiha stone tablet and was horrified by the future awaiting him.
  • Tetsuya rewound the genjutsu to the Battle of the Valley of the End and showed young Madara how events changed in Tetsuya’s world.
  • Young Madara watched Tobi’s arrival and learned that Tetsuya’s shop, political rise, and work to unite smaller nations had transformed the Shinobi World.
  • The genjutsu faded, and Tetsuya asked young Madara whether he had found the answers he wanted.

Ch. 477The First, Wang Wenwang: The fish finally took the bait

Madara Uchiha led the Uchiha Clan to victory in the war and negotiated the founding of Konoha, becoming its first leader. As Black Zetsu entered Madara’s office to manipulate him, Madara realized the fish had taken the bait.

  • Madara Uchiha confronted Hashirama Senju and Tobirama Senju, then negotiated peace from a position of victory.
  • Madara became Konoha’s leader, and the Nara, Yamanaka, Akimichi, Sarutobi, Zhizun, and other clans joined as subordinate clans of the Uchiha Clan.
  • Tobirama noticed Madara’s chakra seemed to fluctuate but refrained from testing him.
  • Madara wondered why Black Zetsu had not appeared, while Black Zetsu decided to coax Madara into reading the Uchiha Clan’s stone tablet.
  • Black Zetsu entered the Hokage Office, and Madara recognized that his plan had drawn Black Zetsu out.

Ch. 478Old Madara: That felt good!

Madara Uchiha captured and erased Black Zetsu after exposing his plan to revive Kaguya. The next morning, Hashirama Senju and Tobirama Senju went to the Uchiha Clan Compound at Madara's invitation, where Hashirama froze after seeing who was waiting in the Pavilion.

  • Madara Uchiha trapped Black Zetsu in the Hokage Office and prevented him from escaping or possessing him.
  • Madara Uchiha revealed that he knew Black Zetsu's secrets and destroyed him with six paths power.
  • Madara Uchiha invited Hashirama Senju and Tobirama Senju to the Uchiha Clan Compound for an important discussion.
  • Hashirama Senju brought gifts and cheerfully followed an Uchiha guard into the Garden, while Tobirama Senju grew suspicious.
  • Hashirama Senju entered the Pavilion, saw the people seated there, and froze.

Ch. 479Founding-era Hashirama: Please teach me, sir. Tetsuya: One sentence-Susanoo-Clad Kurama

Hashirama and Tobirama met their counterparts from another shinobi world, who warned them that their plan to bring peace through founding villages would lead to war. Determined to prevent that future, Hashirama asked Tetsuya for guidance, and Tetsuya gave him a one-sentence plan: use Susanoo-Clad Kurama to unite the shinobi world.

  • Hashirama and Tobirama encountered their counterparts, Madara, and Izuna, and Tetsuya explained that they came from another shinobi world.
  • The Federation's Hashirama told Hashirama and Tobirama that the villages they founded would become sparks for war, and that Tobirama would die in the first war after their deaths.
  • The Federation's Hashirama explained that he, Tobirama, Izuna, and Madara had died and that Tetsuya had resurrected them.
  • After hearing how the villages would send children to battle, Hashirama asked Tetsuya what he should do to bring peace.
  • Tetsuya told Hashirama that peace required war and proposed Susanoo-Clad Kurama to destroy four nations and unite the shinobi world.

Ch. 480Madara: Hashirama, my eyes are your eyes. Hashirama: Thank you, Madara

After the team-building event, Tetsuya learned that Orochimaru had restored Toneri’s eyes and that Toneri had clashed with Naruto over Hinata. The chapter ended as Shinada prepared to explain what happened between them.

  • Tetsuya reassured Hashirama that his counterpart and Madara could achieve peace, and reminded him that their Madara could ask for help.
  • Madara and Hashirama left together to try awakening Hashirama’s Rinnegan with Madara’s sealed Eternal Mangekyō Sharingan.
  • Tetsuya summoned Shinada, who reported that Orochimaru had helped Toneri regain his eyes in exchange for participating in experiments.
  • Shinada told Tetsuya that Toneri visited the Hyuga Clan and came into conflict with Naruto because of Hinata.

Ch. 481Tetsuya: Juicy gossip! Fantastic! Neji: Leave it to me-nothing beats watching the drama unfold in person!

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.

Ch. 482Tetsuya: Kaguya, in Your Two Dear Sons' Eyes, You're Worth Less Than a Toad

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.

Ch. 483A Special Mission: A Dead System Host?

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.

Ch. 484Off to the New World, Tetsuya: When in Rome

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.

Ch. 485Izuna: Man-Eating Demon? Then I'm a Dread Beast. Tetsuya: Uh, Those Actually Exist

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.

Ch. 486Tetsuya: Hey, young man, out for a stroll this late at night?

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.

Ch. 487Tetsuya: Sometimes I wanted to try a different path, too

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.

Ch. 488Listen, boys-I'm pretty strong

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.

Ch. 489The Selection at Mount Fujikasane

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.

Ch. 490The Boys and Demons of Mount Fujikasane

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.

Ch. 491Izuna: I learned moves like these after watching them a few times

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.

Ch. 492The Last Demon on Mount Fujikasane-The Hand Demon

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.

Ch. 493Four Water Breathing users? Everyone passed the selection

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.

Ch. 494Kasugai Crows and Scarlet Crimson Iron Sand, Tetsuya: Hmm, crows remind me of a certain filial son

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.

Ch. 495Husky: Hey, miss me?

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?”

Ch. 496Tetsuya: How About Taking One for the Team, Doggo?

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.

Ch. 497Hotaru Haganezuka, two black blades

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.

Ch. 498Off we go, see you in the south-two years on the road

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.

Ch. 499Two years apart, and back to the old trade. Tetsuya: Working for someone else? Not a chance

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.

Ch. 500Shinnō: Chiba Tetsuya has disappeared. Now it's my era! Tetsuya: ??

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.
Arc 20 of 25