Chapter Summaries

Tanjiro found and killed Spider Mother, who warned him about the mountain’s master, while Hiruma fought off the demons on the mountaintop. Rui, Gyokko, and Dōkū prepared to use Muzan’s Heart of Sealing against Hiruma, leaving Dōkū to lure him into the trap.

• Inosuke used Spatial Perception to locate Spider Mother, then held off the headless demon so Tanjiro could reach her.
• Tanjiro spared Spider Mother’s suffering with Gentle Rain in Drought, and she warned him to beware the mountain’s master before dying.
• Tanjiro recognized Hiruma’s fiery sword technique in the sky and returned to Inosuke, urging him to head for the mountaintop.
• Hiruma destroyed Gyokko’s pot and Dōkū’s sludge attack while taunting the demons hiding in an alternate space.
• Rui gave Dōkū the Heart of Sealing, Muzan’s weapon for capturing Hiruma, and Dōkū resigned itself to luring him into the trap.

Hiruma beheaded Dōkū but was trapped inside its heart, leaving Gyokko and Rui to threaten the mountain while he trusted his allies to reach him. Tanjiro and Inosuke pressed toward the summit and encountered a powerful Lower Rank Demon blocking their path.

• Hiruma beheaded Dōkū, but Dōkū’s heart trapped and swallowed him after unleashing a devastating shockwave.
• Gyokko and Rui taunted the sealed Hiruma, who warned them that his companions would stop them and that Dōkū might not be able to sustain the trap.
• Saber announced that Hiruma had been sealed and warned the swordsmen that Gyokko and Rui were on Mount Natada.
• Tanjiro and Inosuke heard the announcement and continued toward the summit, determined to help Hiruma.
• Tanjiro and Inosuke reached a stream and found a powerful Lower Rank Demon blocking the route uphill, so Inosuke charged with Beast Breathing: Wild Dance.

Zenitsu killed Spider Brother with Thunder Breath while Tanjiro and Inosuke struggled against Spider Father’s nearly impenetrable Blood-Silk Armor. After Spider Father badly wounded Inosuke, Tanjiro prepared to use his family’s Dance of the Fire God.

• Zenitsu fled from the human-headed spiders, but Spider Brother caught him with a strand of spider silk.
• Zenitsu unleashed Thunder Breath: First Form: Thunderclap and Flash: Sixfold and killed Spider Brother.
• Spider Father blasted Tanjiro and Inosuke from the river, then withstood their attacks thanks to his Blood-Silk Armor.
• Tanjiro asked Inosuke to keep Spider Father occupied while he prepared the Dance of the Fire God.
• Spider Father shattered one of Inosuke’s arms and a sword, sending him crashing into the forest.
• As Spider Father leaped toward Tanjiro, a pair of red eyes opened.

Tanjiro, Nezuko, and Zenitsu defeated Spider Father after Tanjiro awakened Sun Breathing and Nezuko used her Blood Demon Art. The battle ended with Zenitsu’s Godspeed strike, but a white-haired Upper Rank appeared and accused them of killing his family.

• Tanjiro used Dance of the Fire God to crack Spider Father's armor and sever its arm, but he began to run out of strength.
• Nezuko protected Tanjiro from Spider Father's attacks, then unleashed Blood Demon Art: Exploding Blood.
• Zenitsu arrived, rescued Nezuko and Tanjiro, and beheaded Spider Father with Thunder Breath: First Form: Thunderclap and Flash: Godspeed.
• Inosuke returned and learned that Zenitsu had killed the demon, while Zenitsu woke in pain and complained about his leg.
• A white-haired youth in a white kimono appeared before Tanjiro and said, "You killed my family!"

Tanjiro confronted Rui over the deaths of his supposed family, and Giyu arrived in time to save the Kamado siblings and defeat Rui's clone. On the mountain, Shinobu poisoned Spider Sister, leaving Rui as the only surviving member of the spider family.

• Tanjiro accused Rui of ruling his family through fear, while Rui insisted that his parents had loved him.
• Inosuke attacked Rui, but Rui shattered his blade and knocked him and Zenitsu unconscious with a single punch.
• Rui suspended Tanjiro and Nezuko in his threads and demanded that Tanjiro choose which sibling would live; both siblings chose to protect the other.
• Rui unleashed Blood Demon Art: Thread Rotation, but Giyu used Water Breathing: Eleventh Form: Calm to destroy the threads and behead Rui's clone.
• Giyu comforted Tanjiro, gathered him with Nezuko, Inosuke, and Zenitsu, and called out to Shinobu on the mountaintop.
• Shinobu Kocho poisoned Spider Sister, who collapsed in pain, leaving Rui as the last member of the spider family.

Rui trapped the Hashira in his Blood Spider Domain, where his blood-powered heart and creatures regenerated under their attacks. The five Hashira fought back together, but Rui declared that the domain made him impossible to kill, and the battle continued as Mount Natada shook.

• Sanemi attacked the heart containing Hiruma, but Hiruma warned the Hashira that the Blood Demon Art would disappear at sunrise and the heart could not be harmed.
• Rui formed the Blood Spider Domain around the summit, using the heart and spider threads to fill Mount Natada with blood and summon Blood Puppets and a giant Blood Spider.
• Gyokko sensed Rui's power outside the barrier and bitterly wondered why Rui had not used the technique sooner.
• Sanemi assigned himself the Blood Spider while Giyu and Obanai took the Blood Puppets, and Kyojuro charged into the battle with Flame Breathing.
• Sanemi, Giyu, and Obanai unleashed their marked techniques together and shattered the Blood Spider, while Shinobu and Kyojuro held back the Blood Puppets.
• The Blood Spider regenerated as Rui claimed the domain made him immortal, and the Hashira launched another assault that shook Mount Natada.

Hiruma broke free from the heart as Shinobu and the Hashira fought Rui’s Blood Spider, whose regeneration threatened to overwhelm them. After Shinobu poisoned the heart and was targeted by a lethal attack, Hiruma saved her and called on the others to finish Rui.

• Hiruma sensed the battle from inside the heart and repeatedly attacked the cave wall and the silk linking Rui to the heart, but he could not escape.
• As the battle wore on, Shinobu activated her Demon Slayer Mark, while Giyu, Sanemi, and Iguro Obanai struggled against the Blood Spider’s relentless attacks and regeneration.
• Giyu spotted a faint mark for poison on the heart, and Kyojuro launched Shinobu upward so she could throw her Wisteria Poison darts into it.
• The poisoned heart unleashed a devastating shockwave, and the Blood Spider sent spikes toward Shinobu as she fell helplessly through the air.
• Hiruma burst free, cut apart the spikes, declared that he was only sealed, and urged the others to kill Rui.

Giyu killed Rui, ending the battle on Mount Natada, while Gyokko tried to ambush the exhausted Demon Slayer Corps members. Hiruma used a sword technique from inside the sealed heart to drive Gyokko away, then emerged when the heart turned to ash in the morning sun.

• Shinobu landed safely but collapsed, and Giyu used Water Breathing: Tenth Form to expose Rui's core and behead him.
• Sanemi struck the falling blood blade aside, and the sphere around Mount Natada began to dissipate as Rui's death ended the battle.
• Gyokko summoned slippery fish to attack the exhausted Hashira, but Hiruma unleashed a sword strike from inside the sealed heart and destroyed the fish and his pots.
• Hiruma bluffed that he could escape, scaring Gyokko into fleeing, though he could only get one leg through the barrier.
• At sunrise, the heart burned to ash and Hiruma stepped out; Shinobu and the others welcomed him back.

Hiruma and Sanemi got Iguro Obanai drunk and provoked him into confessing to Mitsuri. After he left with roses, Shinobu caught Hiruma drinking but praised him for helping her friend and offered to drink with him.

• Hiruma and Sanemi teased Iguro Obanai about his feelings for Mitsuri and dared him to confess.
• Iguro Obanai asked for roses, then left to confess to Mitsuri after meeting Kanae at the gate.
• Kanae realized Hiruma and Sanemi had pushed Iguro Obanai to act, while Sanemi blamed Hiruma for the drinking.
• Shinobu Kocho confronted Hiruma about drinking, and he claimed Sanemi had started it.
• Shinobu released Hiruma after praising him for helping Mitsuri, then joked that her offer to drink with him was fake.

Mitsuri and Obanai confessed their love after Mitsuri overcame his shame about his family, while a drunk Shinobu told Hiruma she loved him and begged him to stop risking his life alone. The chapter left Hiruma comforting Shinobu as she revealed her feelings.

• Obanai arrived at the Love Pillar Estate with roses but could not bring himself to confess to Mitsuri.
• Mitsuri stopped Obanai from leaving, confessed her love, and reassured him that his past did not make him unworthy of her.
• Obanai returned Mitsuri's feelings, and they shared a kiss before he collapsed from drinking.
• Shinobu got drunk and pounced on Hiruma, biting him before tearfully asking him not to act alone.
• Shinobu told Hiruma she loved him forever, and Hiruma assured her that he was the one who had been wrong.

Hiruma and a drunken Shinobu spent the night together, and Shinobu woke embarrassed as he teased her about her behavior. Meanwhile, the Mugen Train arrived empty after a shadowy creature abducted and devoured its passengers, and Kanae walked in on Hiruma and Shinobu roughhousing.

• Shinobu asked Hiruma to sleep beside her, then got tangled in a towel while trying to bathe, so Hiruma freed her and left her to sleep.
• A shadowy creature attacked a passenger aboard the Mugen Train, hypnotized him, and swallowed him; by dawn, the train had arrived with everyone missing.
• Hiruma brought Shinobu breakfast and recounted her drunken antics, making her hide under the covers in embarrassment.
• Shinobu lunged at Hiruma to stop him from revealing more, and Kanae walked in on her clinging to him and biting at his cheek.
• Kanae hurried away after apologizing, while Shinobu insisted nothing was happening and Hiruma joked that they were an old married couple.

Kyojuro and Hiruma investigated reports of murders and the disappearance of passengers aboard the Mugen Train, then headed for the train’s repair yard after nightfall. They left the station with bags of bentos and raced along the tracks toward the moving train.

• Kyojuro learned from the ramen shop owner that several murders had frightened away customers and that everyone in a Mugen Train carriage had vanished.
• Hiruma joined Kyojuro, ordered fifty bowls of ramen, and said he believed the train and the murders were caused by different people.
• Hiruma and Kyojuro agreed to investigate the Mugen Train that night because their fellow swordsmen had disappeared there.
• A swordsman reported to Hiruma and Kyojuro that a girl rescued the previous night had recovered, though she might have psychological trauma.
• Hiruma and Kyojuro bought all the bentos from Kofuku’s shop, then raced along the railway toward the moving train.

Hiruma and Kyojuro infiltrated the Mugen Train workshop to investigate, where The Ripper fled after sensing them. Kyojuro chased it down and saved Kofuku and her grandmother, who recognized him as the son of the man who had saved her decades earlier.

• Hiruma and Kyojuro leaped from a moving train and reached the workshop, where they fed the workers and questioned the foreman about the Mugen Train.
• The Ripper appeared in the workshop with Xiao Yu as a hostage, then dropped him and fled after recognizing Hiruma.
• Kyojuro pursued The Ripper, which raced to a station and attacked Kofuku and her grandmother.
• Kyojuro cut off The Ripper's arm as it attacked the grandmother, then beheaded it with Flame Breathing First Form: Unknown Fire.
• The grandmother recognized Kyojuro as Rengoku Shinjuro's son, and Kyojuro told her that his father had retired and he had taken over his position.

The Mugen Train departed with Tanjiro, Zenitsu, Inosuke, Kyojuro, and Hiruma aboard, while the demon Enmu fused with the train and put most passengers to sleep. Enmu’s plan to destroy the Demon Slayers’ Mental Cores began, but Hiruma remained awake and confronted one of the intruders.

• Tanjiro, Zenitsu, and Inosuke boarded the Mugen Train, with Hiruma keeping Inosuke from causing trouble and reuniting them with Kyojuro.
• After night fell, Enmu revealed that it had fused with the train and announced its plan to induce dreams for the passengers.
• The ticket inspector checked the passengers’ tickets, but Hiruma secretly used a ticket without Enmu’s Blood Demon Art on it and stayed awake.
• Enmu rewarded the inspector by trapping him in a nightmare, then began its final fusion with the train.
• Five sick youths entered the last carriage to use Dream Ropes and Awls to destroy the Demon Slayers’ Mental Cores, but one girl found Hiruma still awake.

Hiruma watched the dream-bound children experience fantasies of happiness before the girl who had tried to enter his dream broke down and admitted her wrongdoing. He gave her medicine and asked Nezuko to come out of Tanjiro’s box, leaving the children’s fate uncertain.

• Tanjiro dreamed that his deceased father and family were alive, then joined them in a joyful reunion.
• Inosuke dreamed that Tanjiro, Zenitsu, Nezuko, Shinobu Kocho, and Hiruma worshipped him as their powerful boss, while his laughter frightened the girl in the train carriage.
• Zenitsu dreamed that he delighted Nezuko with a giant peach and asked her to marry him.
• Kyojuro dreamed of holding his baby sister among his happy family, including Ruka, Senjuro, and Shinjuro Rengoku.
• The girl panicked because she could not enter Hiruma’s dream, then confessed that she was wrong to hurt others for selfish reasons.
• Hiruma gave the girl Save Your Life Three Thousand to share with the other children, then asked Nezuko to come out of Tanjiro’s box.

Hiruma, Tanjiro, and Inosuke confronted Enmu after he merged with the train, while Kyojuro, Nezuko, and Zenitsu fought to protect the passengers. Hiruma decapitated Enmu and cut through the One-Eyed Demons, but Tanjiro and Inosuke remained asleep as more enemies appeared.

• Hiruma woke Tanjiro and the others with Nezuko’s Blood Demon Art, then assigned Kyojuro to protect the passengers while he, Tanjiro, and Inosuke pursued Enmu.
• Hiruma, Tanjiro, and Inosuke reached the roof, where Enmu revealed he had merged with the train and used the One-Eyed Demons’ Dream Induction to put them to sleep.
• Kyojuro burned through the train’s invading flesh, and Nezuko protected passengers while Zenitsu awakened and destroyed flesh across three cars with his lightning.
• Hiruma woke and decapitated Enmu, but more than a hundred One-Eyed Demons grew along the train as Tanjiro and Inosuke remained asleep.
• Hiruma used Way Breathing Water Form: Coiling Dragon to decapitate thirty-eight One-Eyed Demons and faced the remaining crowd.

Tanjiro and Inosuke overcame Enmu’s sleep attacks and fought their way toward the locomotive while Hiruma held back the One-Eyed Demons. Just as they exposed Enmu’s vulnerable spine, Enmu caused the train to tip off the tracks, threatening everyone on its roof.

• Tanjiro resisted Enmu’s dream by killing himself to wake up, while Inosuke fought sleep-inducing demons by shouting and swinging his blades.
• Tanjiro created the Mixed Breathing Style: Flame Dance of Flowing Water and cut through the One-Eyed Demons as Inosuke sharpened his senses and pushed forward.
• Hiruma used Way Breathing: Wind Form: Feilian to sweep the demons aside and clear a path to the locomotive.
• Tanjiro and Inosuke reached the first carriage and cut through the flesh connecting it to the locomotive, exposing Enmu’s spine.
• Enmu tipped the train off the tracks, threatening to throw everyone from its roof.

Tanjiro awakened the Demon Slayer Mark and used the Dance of the Fire God to escape Enmu’s killing blow, rescuing Inosuke as Hiruma kept the train on the tracks. Inosuke’s mark also awakened, and the two prepared to fight the recovering Enmu.

• Enmu trapped Tanjiro and Inosuke in a field of flesh while Hiruma jumped off the train and forced it back onto the tracks.
• Tanjiro was struck by a giant fist of flesh, and he saw his father demonstrate the final Dance of the Fire God as he awakened the Demon Slayer Mark.
• Tanjiro used Dance of the Fire God: Scorching Sun Red Mirror to destroy the fist and cut through Enmu’s flesh, freeing Inosuke.
• Tanjiro thanked Inosuke for saying his name correctly, and Inosuke’s Demon Slayer Mark awakened in response to Tanjiro’s.
• Tanjiro warned Inosuke to take the medicine, and Inosuke swallowed it as the flesh arms began to regenerate.

Tanjiro and Inosuke broke through Enmu’s defenses and Tanjiro beheaded the demon, ending the battle aboard the Mugen Train. Kyojuro and Hiruma stopped the runaway train without any passengers being hurt, while Hiruma sensed that greater dangers still lay ahead.

• Inosuke and Tanjiro attacked Enmu’s hardened defenses, and Tanjiro created an opening for Inosuke to shatter the protective layer around Enmu’s neck.
• Tanjiro used Sun Breathing: Tenth Form - Radiant Glow to expose Enmu’s neck and then beheaded it.
• Kyojuro caught the exhausted Tanjiro as Zenitsu escaped the train carrying Nezuko.
• Kyojuro slowed the runaway train with Flame Breathing: Fifth Form - Flame Tiger, and Hiruma stopped it with Way Breathing Thunder Form: Kirin.
• Hiruma carried the injured Tanjiro and Inosuke to the locomotive, where he and Kyojuro celebrated that no one on the train had been hurt.
• Hiruma looked toward the distant forest and considered that the Mugen Train battle had only been an appetizer.

Hiruma and Kyojuro faced Akaza and Hundred Eyes after the Upper Ranks appeared, and Hiruma entered a powerful silver-flamed state to battle Hundred Eyes. Akaza attacked Tanjiro, but Kyojuro intervened and refused Akaza’s offer to become a Demon, leaving the two ready to fight to the death.

• Hiruma and Kyojuro confronted Akaza, who revealed that his lord had ordered Hiruma killed and praised his fighting spirit.
• Hundred Eyes arrived and struck Hiruma, but Hiruma emerged in a silver-flamed state and severed one of Hundred Eyes’ arms before they clashed again.
• Akaza moved to kill Tanjiro, but Kyojuro cut off Akaza’s arm and forced him to recognize Kyojuro as a worthy opponent.
• Akaza invited Kyojuro to become a Demon and pursue the Transparent World, but Kyojuro refused and said he would rather die in battle.
• Akaza accepted Kyojuro’s refusal and declared that he would kill him with his own hands.