Arc 3Mugen Train and Akaza

Kirishima Bupai investigated the disappearances around the Mugen Train and joined Tanjiro and the others in fighting Enmu and Crossing Dream. After the trains were stopped, he confronted Akaza, helped restore Hakuji’s memories, and killed him before turning back to the rescue site.

  • Kirishima Bupai learned that Inspector Inoue’s arrests and the wanted posters were connected to missing Demon Slayers, then infiltrated the Mugen Train depot and killed Ripper by crushing him under a locomotive.
  • At Central Station, Tanjiro, Zenitsu, and Inosuke were trapped in nightmares as Enmu’s flesh-covered trains attacked the city, while Crossing Dream controlled the station’s deadly dream network.
  • Nezuko woke Tanjiro, Zenitsu, and Inosuke from their nightmares, and Tanjiro injured Crossing Dream’s giant eye as the demon sent sleeping civilians to attack them.
  • Kirishima Bupai killed Crossing Dream, while Kyojuro Rengoku and the other Demon Slayers stopped Enmu’s trains and rescued the passengers.
  • Akaza arrived at Central Station and challenged Kirishima Bupai, who rejected his offer to become a demon and reminded him of his past as Hakuji.
  • The fireworks stirred Hakuji’s memories of Koyuki, and he resisted Muzan’s control before Kirishima Bupai killed him with the Bright Red Blade and turned toward the rescue site.
Chapters 51–75 Vol. 1 Read

Ch. 51Drama at the Butterfly Mansion

Several days after the Hashira Meeting, Tanjiro and Zenitsu recovered in the Butterfly Mansion ward while Inosuke fretted over his missing chocolate. Murata arrived shaken from facing the Hashira, and Kirishima Bupai entered with an overwhelming presence.

  • Inosuke counted the chocolate wrappers and insisted that one was missing, though he had eaten the chocolates himself.
  • Tanjiro smelled the chocolate wrappers, and Inosuke bragged that Kirishima Bupai had given him the treats.
  • Murata entered the ward and told Tanjiro, Zenitsu, and Inosuke that reporting to the ten Hashira had terrified him.
  • Kirishima Bupai entered the ward, and Murata called him the Void Hashira.

Ch. 52Shinobu Kocho: This was an illness that needed special attention!

Kirishima Bupai questioned Murata about his unclear report on Mount Natagumo, but Inosuke’s bizarre counting convinced Shinobu Kocho and Aoi Kanzaki that he needed medical observation. Inosuke was sedated and taken away for examination.

  • Kirishima Bupai pressed Murata to clarify his report about a suspected second member of the Twelve Kizuki on Mount Natagumo, but Murata could barely speak.
  • Inosuke sniffed the chocolate and cola in Kirishima Bupai’s pocket, prompting Kirishima Bupai to kick him back onto his bed.
  • Inosuke proudly counted nine chocolate wrappers as eight and insisted his eyes and mind had recovered.
  • Shinobu Kocho and Aoi Kanzaki watched Inosuke’s behavior with concern, and Aoi sedated him.
  • Shinobu Kocho ordered Aoi to take Inosuke to an observation room and postpone his rehabilitation training.

Ch. 53Muzan the Heartless Boss: The Layoff Meeting!

Shinobu Kocho gave Kirishima Bupai a lunch box and chided him for forgetting it, while Muzan Kibutsuji summoned the Lower Rank demons to judge their usefulness. Muzan killed Koyuki, leaving the remaining demons terrified.

  • Shinobu Kocho handed Kirishima Bupai his forgotten lunch and warned him to get his head examined.
  • Wakuraba, Koyuki, Kamanue, Enmu, and Crossing Dream gathered in Infinity Castle, where the Upper Ranks were absent.
  • Muzan Kibutsuji appeared in a woman's form and demanded to know whether the Lower Rank demons were still useful.
  • Muzan questioned Koyuki about killing Hashira and finding clues to the Blue Spider Lily.
  • Muzan called Koyuki useless and killed her, terrifying Wakuraba and Kamanue.

Ch. 54Who on Earth Was He?!

Muzan spared Kamanue after Crossing Dream and Enmu persuaded her to send them after the silver-haired man, the hanafuda-earringed boy, and the demon in the box. Alone in the Infinity Castle, Muzan was shaken by the man’s words, “What do you take life for?!” and wondered who he was and how he knew them.

  • Muzan killed Wakuraba and prepared to kill Kamanue for his failure to report what happened at Mount Natagumo.
  • Crossing Dream defended Kamanue, and Enmu joined him in praising Muzan and offering to investigate the anomaly.
  • Crossing Dream identified the silver-haired man in sunglasses and a black haori, prompting Muzan to order him and Enmu to find the man and eliminate the boy with hanafuda earrings and the demon in the box.
  • Muzan gave Enmu and Crossing Dream her blood to strengthen them, then dismissed them and allowed Kamanue to leave.
  • Alone, Muzan trembled as Rui’s memories replayed the silver-haired man asking, “What do you take life for?!”
  • Muzan was haunted by the question and saw visions of Yoriichi and the doctor she had killed.

Ch. 55Mugen Train

Kirishima Bupai received orders to investigate a wave of disappearances and attacks involving several trains and stations. He set out for East Junction Terminal, then paused at a tavern to read about the authorities’ response.

  • A Kasugai Crow warned Kirishima Bupai that multiple trains had attacked passengers and staff, with more than six hundred people dead or missing.
  • Kirishima Bupai read the Corps’ orders to investigate East Junction Terminal, identify the demon, and rescue any captured Corps members.
  • The chapter revealed that Lower Rank One, Enmu, and Lower Rank Two, Crossing Dream, were behind the attacks, with Crossing Dream’s Blood Demon Art turning trains and stations into deadly traps.
  • Kirishima Bupai headed toward the station area and remarked that he wanted to see what the “outstanding employee” had been doing.
  • Kirishima Bupai read a newspaper at a tavern reporting the disappearances and warning the public to report suspicious sword-bearing individuals.

Ch. 56Oh no! Everyone's wanted!

Kirishima Bupai learned that Inspector Inoue was using the authorities to arrest people, then discovered that he and Tanjiro, Zenitsu Agatsuma, and Inosuke Hashibira had been framed as wanted criminals. The chapter ended as guards spotted the group’s wanted posters and rushed to catch them at the train station.

  • Kirishima Bupai heard tavern patrons say Inspector Inoue had been arresting strong, healthy people who then disappeared, including Demon Slayer Corps members.
  • Kirishima Bupai saw a wanted poster naming him a Class-A felon and listing fabricated crimes, then found his face plastered across the city.
  • Kirishima Bupai reached Central Train Station and saw Tanjiro, Zenitsu Agatsuma, and Inosuke Hashibira named as his accomplices.
  • Guards shouted that they had found the people on the wanted posters and rushed into the station hall.

Ch. 57If you know, you know?

Tanjiro, Zenitsu Agatsuma, and Inosuke Hashibira escaped the guards by boarding a departing train, while Kirishima Bupai planned to confront Inspector Inoue before following them. At the deserted station, Kirishima boarded the only train he could find, and its conductor hinted that the wanted posters were part of an “if you know, you know” arrangement.

  • Tanjiro, Zenitsu Agatsuma, and Inosuke Hashibira dodged the guards and escaped aboard the departing train.
  • Kirishima Bupai watched the train leave and decided to visit Inspector Inoue before pursuing the boys.
  • After nightfall, Kirishima boarded an empty dark green train at the deserted station.
  • The conductor found Kirishima in the carriage and explained that the wanted posters were an “if you know, you know” matter.
  • Kirishima asked what the conductor meant.

Ch. 58What Was Really Going On?

Kirishima Bupai learned that Inspector Inoue was using false charges and arrests to remove people, then discovered that the Mugen Train was being serviced in a nearby depot. He infiltrated the maintenance shed and approached the foreman, but a scream rang out from inside a carriage.

  • The conductor told Kirishima Bupai that Inspector Inoue had been arresting people at random and that many detainees never returned.
  • The conductor pointed Kirishima Bupai toward the Mugen Train's maintenance shed, and Kirishima leapt from the carriage to reach it.
  • The conductor tore down the wanted notice and threw it into the night.
  • Kirishima Bupai entered the brightly lit depot and claimed he was checking maintenance work for the Logistics Support Department.
  • The foreman said workers had fled because they believed the depot was haunted, then a piercing scream came from near an open carriage.

Ch. 59Ripper? Bento Terminator!

Kirishima Bupai rescued a maintenance worker from Ripper, the Bento Terminator, and effortlessly crippled the demon. As Demon Slayer Corps reinforcements arrived, Ripper regenerated his limbs, but Kirishima Bupai slammed him headfirst into the workshop floor.

  • Kirishima Bupai found Ripper holding a young maintenance worker by the throat and sliced off the demon’s four limbs, freeing the worker.
  • Ripper threatened Kirishima Bupai and boasted about torturing Demon Slayer Corps swordsmen, while Kirishima Bupai asked what he took life for.
  • A group of Demon Slayer Corps swordsmen arrived and reported that Lower Rank Two, Crossing Dream, had infiltrated the Mugen Train area.
  • Ripper regenerated his arms and legs, but Kirishima Bupai struck him into a crater in the concrete, leaving his body stuck headfirst in the floor.

Ch. 60Sorry, That Was My Blind Spot!

Kirishima Bupai had the Demon Slayer Corps bind the Ripper to the tracks, then kicked a broken thousand-ton locomotive into motion to crush him. After the train ran over the demon, Kirishima claimed he had not seen him and stopped the locomotive by kicking it backward, leaving the stunned witnesses staring.

  • Kirishima Bupai ordered the Demon Slayer Corps members to pull the Ripper from the pit and chain him to the tracks.
  • Kirishima Bupai learned that an aging freight locomotive had working wheels but a broken power furnace.
  • Kirishima Bupai kicked the locomotive into motion and rode it toward the Ripper bound to the rails.
  • The locomotive crushed the Ripper, and Kirishima Bupai claimed he had mistaken him for a pebble.
  • Kirishima Bupai kicked the locomotive's front buffer and forced the thousand-ton train to reverse.

Ch. 61We're All Fighting to Stay Alive!

Kirishima Bupai repeatedly crushed Ripper with a locomotive until the demon’s regeneration failed, then the train accidentally flattened another demon. As the Demon Slayer Corps and the workshop workers watched, over a hundred armed police arrived and surrounded them, accusing Kirishima Bupai of heinous crimes.

  • Kirishima Bupai drove the locomotive over Ripper three times, destroying the demon until its aura vanished.
  • A second demon arrived at the workshop entrance, but the slowly reversing locomotive ran it over before it could react.
  • The Demon Slayer Corps members and maintenance workers watched the bizarre scene in stunned silence.
  • More than a hundred armed police officers stormed the maintenance depot, led by a stout middle-aged officer holding a wanted notice for Kirishima Bupai.
  • The police surrounded everyone and ordered Kirishima Bupai’s arrest, while guards beat workers who tried to flee and the foreman protested that they were innocent.

Ch. 62Outclassed

Kirishima Bupai surrendered to the guards at the Maintenance Station, but his Hui Division swiftly incapacitated them and reported on its search of the stations. The report linked the disappearances and abnormal trains to Central Station, where suspicious activity centered on the newly appointed inspector, and Kirishima Bupai wondered whether Enmu was responsible.

  • A Demon Slayer reported that seven Corps members had been arrested and were being held at West City Police Station.
  • Kirishima Bupai ignored the guards’ threats and offered to let them cuff him, warning them they would regret it.
  • The Hui Division ambushed the guards, incapacitating them and removing them from the area.
  • The Hui Division leader reported that East Station and North Station had been cleared and that its search of Central Station was still underway.
  • Kirishima Bupai read intelligence connecting Central Station to the arrests, missing Demon Slayers, abnormal trains, and the inspector’s suspicious movements.
  • Kirishima Bupai wondered whether Enmu had caused the trouble and whether Muzan would let Akaza come.

Ch. 63Target: Central Train Station

Kirishima Bupai destroyed the locomotive at the factory but found no demon inside, then sent Demon Slayer Corps members to search nearby stations for the Lower Ranks. At Central Station, Tanjiro, Zenitsu Agatsuma, and Inosuke Hashibira witnessed demons attack passengers whenever the lights went out.

  • Kirishima Bupai cut the crimson Mugen Train locomotive in half, but found only machinery inside.
  • Kirishima Bupai promised to compensate the maintenance workers and dispatched Demon Slayer Corps members to search the south and west stations.
  • Kirishima Bupai warned the Corps members that their enemies were dream-controlling Lower Ranks and told them to be careful.
  • Tanjiro, Zenitsu Agatsuma, and Inosuke Hashibira noticed the strange stillness and unusual smell at Central Station.
  • The station lights went out, and a suited man was crushed into a train when they came back on.
  • The lights flickered again, and another passenger's lower body vanished beneath a carriage as the crowd panicked.

Ch. 64Flickering lights? Into dreamland

Tanjiro fought a monstrous steel centipede formed from the train while Zenitsu, Inosuke, and the passengers lay trapped in a nightmare. After the monster knocked him unconscious, a Demon Slayer Corps squad arrived, realized they were all dreaming, and then fell asleep themselves when the lights went out.

  • When the lights went out, Tanjiro sensed a deadly attack and blocked it, but the returning lights revealed Zenitsu and Inosuke had vanished.
  • The train transformed into a steel centipede and slaughtered passengers before charging Tanjiro.
  • Tanjiro dodged and fought the monster, but it wounded him and swept him away when he saw Zenitsu and Inosuke lying unconscious.
  • The steel centipede approached as Tanjiro lost consciousness, while the passengers remained trapped in painful dreams.
  • Ten minutes later, a Demon Slayer Corps squad found the sleeping victims and the unconscious Tanjiro, Zenitsu, and Inosuke.
  • The squad captain recognized that everyone was trapped in a nightmare, but the lights flickered and the corps members fell asleep too.

Ch. 65Have a Good Dream

Crossing Dream trapped everyone entering Central Station in nightmares and fed on their fear as rescue teams repeatedly fell victim to his power. After Inspector Inoue begged for the sweet dream Crossing Dream had promised, Crossing Dream sent him into a nightmare instead.

  • A Kasugai Crow witnessed the agonized victims inside Central Station and flew to warn the Demon Slayer Corps.
  • Police and rescue teams repeatedly entered the station, but the flickering lights marked their deaths or collapse in terror.
  • Crossing Dream watched from the station dome and rejoiced as the trapped victims' fear nourished him and fueled his ambition to become an Upper Rank demon.
  • Inspector Inoue climbed onto the dome and told Crossing Dream that he had lured two-thirds of the city's armed forces to the station.
  • Crossing Dream refused Inoue's plea for an eternal sweet dream, suggested he seek Enmu, and touched his forehead to send him into a nightmare.

Ch. 66A demon who doesn't want to become an Upper Rank isn't a good demon

Crossing Dream killed Inspector Inoue as Enmu's nightmare feast began, while trains across the city mutated into flesh monsters and raced toward Downtown Central Station. Enmu fused with sixteen trains, believing their multiple necks would make him nearly impossible to defeat and bring him closer to becoming an Upper Rank.

  • Crossing Dream killed Inspector Inoue and eagerly anticipated Enmu's feast of fear.
  • Trains at East Station, West Station, and South Station transformed into flesh monsters and devoured passengers before racing toward Downtown Central Station.
  • Passengers swallowed by the trains remained peacefully trapped in sweet dreams as the flesh consumed them.
  • Enmu spread his flesh through sixteen trains and declared that they would become his powerful, flexible necks.
  • Enmu fused with the locomotive and accelerated toward Downtown Central Station, intent on becoming an Upper Rank.

Ch. 67Entangled in nightmares

Tanjiro, Zenitsu, and Inosuke were trapped in nightmares that preyed on their deepest fears while their train raced toward the convergence point. Nezuko awoke in the real world, burst out of Zenitsu’s wooden box, and landed beneath the station dome.

  • Tanjiro repeatedly relived his family’s massacre and despaired over failing to protect them and Nezuko.
  • Zenitsu was trapped in a swamp as Kaigaku mocked him and visions of his friends and Jigoro Kuwajima condemned him.
  • Inosuke fought beasts in the cave where he had been raised and was tormented by visions of abandonment and his unknown parents.
  • Nezuko’s consciousness awakened in response to Tanjiro’s intense pain, and she forced open the lid of Zenitsu’s box.
  • Nezuko burst from the box and landed beneath the glass dome as moonlight fell over her pink kimono.

Ch. 68Nezuko: Burn it, burn it, burn it all!

Nezuko used her Blood Demon Art to repeatedly burn Tanjiro, Zenitsu, and Inosuke awake from the nightmare assault at Central Station. Tanjiro found the giant eye controlling the nightmare network and launched an attack against it.

  • Nezuko spotted the demon's presence above the station and used her flames to wake Tanjiro from his nightmare.
  • As the station lights flickered and the nightmare repeatedly pulled Tanjiro under, Nezuko burned him awake each time.
  • Nezuko's flames also pulled Zenitsu and Inosuke out of their nightmares.
  • Tanjiro followed the malice to a giant eye hidden at the center of the dome and recognized it as the source of the nightmare network.
  • The giant eye turned toward Tanjiro with increased malice, and he attacked it with Water Breathing, Eighth Form: Waterfall Basin.

Ch. 69Fierce battle

Tanjiro pierced Crossing Dream’s giant eye with his Nichirin Blade, disrupting the nightmare field and briefly freeing the sleepers. Crossing Dream retaliated by turning the civilians into puppets and sending them after Tanjiro, Zenitsu, Inosuke, and Nezuko, leaving Tanjiro unarmed and the group surrounded.

  • Tanjiro hurled his Nichirin Blade into the center of Crossing Dream’s giant eye, badly injuring him and weakening the nightmare field.
  • Nezuko’s flames woke Zenitsu and Inosuke, who saw the trapped civilians briefly relax as the field cracked.
  • Furious, Crossing Dream used Blood Demon Art: Puppet Dream Threads to control the sleeping civilians and order them to attack Tanjiro and the others.
  • Inosuke tried to cut the invisible threads but failed, and he hesitated after his blades wounded some of the controlled civilians.
  • Tanjiro fought the puppets without his sword, protected Inosuke, and shouted at Zenitsu to stop freezing as the crowd closed in.

Ch. 70Emergency: Trains collide

Tanjiro, Inosuke, Zenitsu, and Nezuko discovered that Nezuko’s flames and Zenitsu’s strikes could sever the mental threads controlling the puppets, while Tanjiro moved to retrieve his Nichirin Blade. Outside Central Station, Enmu’s flesh-covered trains collided and exploded, and Kanao Tsuyuri began cutting the trains loose from their carriages as another swordsman attacked.

  • Nezuko burned the mental threads controlling two puppets, and Zenitsu used Thunder Breathing to sever more threads and clear a path.
  • Inosuke protected Nezuko as she burned dense clusters of threads, while Tanjiro darted through the crowd toward his Nichirin Blade and the pale figure on the dome.
  • Sixteen flesh-covered trains raced toward Central Station as Demon Slayer Corps members struggled to cut through Enmu’s regenerating flesh.
  • Two trains collided when Enmu’s control faltered, setting off explosions that derailed nearby trains and sent the remaining trains charging toward the station.
  • Kanao Tsuyuri severed the flesh connecting one train’s engine to its carriages, then rushed toward the next train as a shout announced Flame Breathing, Esoteric Art, Ninth Form: Purgatory.

Ch. 71An instant kill of Lower Rank Two

Kyojuro Rengoku and Kirishima Bupai fought to stop the flesh-and-blood trains and save their passengers while Tanjiro pressed toward Crossing Dream on the dome. Kirishima killed Crossing Dream in one strike, and Rengoku faced two more trains threatening Central Station.

  • Kyojuro Rengoku destroyed the engines of four flesh-and-blood trains, stopping them from reaching Central Station.
  • Kirishima Bupai severed the tentacles attacking passengers as Tanjiro fought through the puppets toward the dome.
  • Crossing Dream raised a shield and reached for the Nichirin Blade embedded in the giant eye, but Kirishima appeared behind him and cut off his head.
  • Kirishima vanished as Crossing Dream's body crumbled to ash on the steel framework.
  • Two more flesh-and-blood trains charged toward Central Station, and Kyojuro Rengoku met them with a blazing tornado of fire.

Ch. 72The curtain fell?

Kirishima Bupai and the Demon Slayers stopped Enmu’s flesh-and-blood trains from reaching Central Station by attacking their shared cores. The trains came to a halt, and Kakushi members began rescuing passengers from the wreckage.

  • Rengoku destroyed four charging trains with a single slash as more trains surged toward Central Station.
  • Kirishima Bupai struck Enmu’s phantom clone with his Bright Red Blade, burning the demon’s consciousness and slowing the trains.
  • Kirishima Bupai borrowed nearby Demon Slayer Corps members’ Nichirin Blades and hurled them into several train cores, creating an opening.
  • Tanjiro, Zenitsu, Inosuke, Kanao Tsuyuri, and Kyojuro Rengoku severed the remaining train necks, stopping the locomotives near Central Station.
  • Kakushi members began rescuing passengers from the damaged carriages as the battlefield fell quiet.

Ch. 73Upper Rank Three, Akaza!

After Akaza appeared at Central Station and targeted Kirishima Bupai, Kirishima struck him with a single punch and sent him crashing through the station wall. The stunned swordsmen watched as Akaza came to a stop in a long trench.

  • Tanjiro, Zenitsu, Inosuke, Purgatory, and Kanao Tsuyuri recovered from the train wreck and helped rescue the passengers.
  • Kirishima Bupai wondered whether Akaza would appear, and a terrifying demonic presence descended through the shattered dome.
  • Akaza entered the ruins, identified himself as Upper Rank Three, and locked his attention on Kirishima Bupai.
  • Akaza rushed Kirishima and swung a punch at his face, but Kirishima dodged and hit Akaza with his right fist.
  • Kirishima's punch sent Akaza through steel beams and Central Station's outer wall, leaving the onlookers stunned.

Ch. 74Become a demon too!

Kirishima Bupai fought Akaza outside Central Station and rejected his offer to become a demon, while trying to awaken the memories of Hakuji. Akaza briefly regained clarity before Muzan Kibutsuji’s influence drove him to attack, and Kirishima Bupai severed his arm with the Bright Red Blade.

  • Kirishima Bupai told the stunned rescuers to help the injured and prepare fireworks, then faced Akaza in the ruined clearing.
  • Akaza praised Kirishima Bupai’s strength and urged him to abandon humanity and become a demon.
  • Kirishima Bupai dodged Akaza’s attacks and called him Hakuji, stirring painful memories of his past.
  • Kirishima Bupai reminded Akaza of the people he had once protected, and Akaza briefly began to remember Hakuji’s life and Koyuki.
  • Muzan Kibutsuji’s voice overwhelmed Akaza, who launched Destructive Death: Annihilation Type at Kirishima Bupai.
  • Kirishima Bupai drew the Bright Red Blade and severed Akaza’s right arm, suppressing its regeneration with the blade’s solar energy.

Ch. 75Koyuki: I'm pulling the plug!

As fireworks restored Hakuji’s memories of Koyuki, he resisted Muzan’s control and accepted death at Kirishima Bupai’s hand. Kirishima watched Hakuji turn to ash, then looked toward the ongoing rescue work.

  • Akaza urged Kirishima Bupai to become a demon, but the distant fireworks triggered Akaza’s memories of Koyuki and his former life as Hakuji.
  • Hakuji remembered his promise to Koyuki, his master, and his father, and wept over becoming a man-eating demon.
  • Muzan tried to seize control of Hakuji, but Hakuji rejected him and declared that he would find Koyuki.
  • Kirishima Bupai killed Hakuji with the Bright Red Blade, and Hakuji accepted his death with thoughts of reuniting with Koyuki.
  • The system awarded Kirishima Bupai 2,000 points, bringing his total to 3,122, and he turned toward the rescue site.
Arc 3 of 8