Chapter Summaries

Mima left the group to head toward Kokushibo, while Inosuke, Shinobu Kocho, and the supposedly dead Kanae Kocho fought Doma, the demon who had killed Kanae. They wounded Doma, but his ice attacks forced them to retreat and the battle remained unresolved.

• Mima slipped away from the group to approach Kokushibo, while the others left Inosuke's fight to three experts.
• Shinobu Kocho recognized Doma as her sister's killer, and Kanae Kocho revealed herself to be alive and urged Shinobu to keep fighting.
• Inosuke charged Doma, and he, Shinobu, and Kanae attacked together as Doma used ice lotuses and freezing mist.
• Inosuke dispersed Doma's icy mist, but the four fighters inhaled some of it and felt their lungs freezing.
• Kanae cut through Doma's ice vines and charged him alone as ice pillars fell from the ceiling.
• Kanae slashed Doma's eyes in half, but he criticized her familiar techniques and swept his golden fans again.

Kanae, Shinobu Kocho, Inosuke, and Kanao gained the upper hand against Doma, whose ice constructs and attacks failed to stop them. Kanae’s words about Doma’s empty life left him frozen in confusion as the battle continued.

• Doma created ice sculptures that spread freezing air, but he paused after sensing Akaza’s presence vanish and return transformed; Kanae urged everyone to attack.
• Kokushibo sensed Akaza’s change and faced several fighters, while Muzan tried to escape by sending his cells through the Infinity Castle’s floor.
• Tetsuhiro used Wood Release to enclose the Infinity Castle and absorb Muzan’s escaping cells; Hiruzen went ahead to support other fronts as Gyomei continued toward his own unfinished business with Urokodaki and Tengen Uzui.
• Shinobu Kocho, Kanae, Inosuke, and Kanao pressed Doma with their Breathing Styles, and Shinobu’s Demon Slayer Mark and red-hot blade helped interrupt his freezing attacks.
• Doma summoned six ice children that wielded Blood Demon Arts, but the four fighters destroyed five while Kanae, Kanao, and Shinobu kept him pinned down.
• Kanae called Doma pitiful for lacking emotions and purpose, causing him to question what he had lived for and giving the fighters an opening.

Shinobu Kocho poisoned Doma, who hid inside his ice castle while the Water Lily Bodhisattva reformed and trapped Kanae. Inosuke and the others fought through the castle, and just as Shinobu was overwhelmed by the Bodhisattva, Hakuji and Tsunade arrived to help.

• Shinobu Kocho's poison weakened Doma, but he enclosed himself in an ice castle as the Water Lily Bodhisattva began to reform.
• A flare Genya launched lit the Infinity Castle, but its light proved harmless to the demons.
• Shinobu Kocho, Kanae, Kanao, and Inosuke broke into Doma's castle, where ice figures and Lotus Women attacked them.
• Ice vines dragged Kanae away, and Inosuke pursued her until exhaustion and an ice pillar stopped him; Kanao returned his blades and urged him on.
• The completed Water Lily Bodhisattva attacked Shinobu Kocho, but Inosuke severed its thumb and a golden-haired woman crushed its palm.
• Hakuji used Destructive Death: Annihilation Type to knock down the Water Lily Bodhisattva.

Hakuji fought Doma while Tsunade and Jiraiya treated the injured, but Doma seized Kanao and Tsunade after faking his defeat. As Tanjiro faced losing Kanao, Yoriichi Tsugikuni emerged from his Mindscape, rescued them, and confronted Doma.

• Hakuji took on Doma, while Tsunade yielded the fight and treated Shinobu Kocho and Jiraiya thawed Kanae.
• Doma transformed the ice castle into a giant bodhisattva, but Hakuji shattered it and apparently pulverized him with a powerful punch.
• Doma reappeared from a puddle and grabbed Kanao and Tsunade as Tanjiro and the others tried to stop him.
• Yoriichi Tsugikuni emerged from Tanjiro's Mindscape, disarmed Doma, severed his arms, and allowed Tanjiro and Jiraiya to rescue Kanao and Tsunade.

Yoriichi killed Doma with a single strike, and Tanjiro’s group set out to find Muzan while Hakuji embraced his new freedom and resolve. Meanwhile, Kuwajima followed a clue to confront Kaigaku, who expected Zenitsu instead.

• Yoriichi destroyed Doma, stunning Tanjiro, Shinobu Kocho, Inosuke, and the others.
• Tanjiro explained that Hakuji had become a new species and was trying to atone, and Yoriichi warned Hakuji before departing.
• Tanjiro’s group rested briefly, then headed toward the center of the Infinity Castle to find Muzan as Hakuji resolved to grow stronger on his own.
• Kuwajima, Zenitsu, Urokodaki, Gyomei, and Tengen tracked Kaigaku, then split up to search the rooms while Kuwajima rushed deeper into the castle.
• Kuwajima found a piece of Kaigaku’s clothing and followed the trail upstairs, where he confronted Kaigaku on the sixth floor.
• Kaigaku mistook Kuwajima for an unexpected stranger and asked whether Zenitsu had been too afraid to come.

Kaigaku rejected Kuwajima’s offer to return to humanity and tried to kill him, but Zenitsu intervened and fought his former fellow disciple. Zenitsu outmatched Kaigaku and cut his neck, leaving Kaigaku wounded and disbelieving.

• Kuwajima stopped the Kasugai Crow and urged Kaigaku to return to humanity, but Kaigaku pretended to accept before attacking him.
• Zenitsu arrived in time to deflect Kaigaku’s strike and accused him of driving Kuwajima to commit seppuku.
• Kaigaku dismissed Kuwajima’s suffering and raged that he had been forced to share the Rumble Hashira title with Zenitsu.
• Zenitsu and Kaigaku clashed, and Kaigaku used the Fourth Form, Distant Thunder, to unleash black lightning that destroyed the loft.
• Zenitsu appeared behind Kaigaku with a demon slayer mark and cut his neck, leaving Kaigaku shocked.

Zenitsu lost his right arm while shielding Kuwajima from Kaigaku, who had admitted to killing dozens of villagers and Corps members. As Tengen and Gyomei overwhelmed Kaigaku and Urokodaki treated the wounded, Zenitsu got back to his feet and vowed to kill him himself.

• Kuwajima confronted Kaigaku about murdering villagers and Corps members, and Kaigaku rejected his former master.
• Kuwajima collapsed after spitting blood, and Zenitsu lost his right arm protecting him from Kaigaku's attack.
• Tengen arrived and fought Kaigaku, while Urokodaki found Zenitsu gravely wounded and helped stabilize him.
• Gyomei joined the battle and struck Kaigaku with his Meteor Hammer, then he and Tengen attacked him together.
• Urokodaki saved Zenitsu's severed arm and urged him to trust the Empire to restore it.
• Zenitsu rose despite his injuries and vowed to finish Kaigaku himself.

Zenitsu used his strongest Thunder Breathing technique to decapitate Kaigaku, then collapsed and was caught by Tengen. As the others stayed behind or went to support the remaining fighters, Muzan realized Yoriichi Tsugikuni had arrived and feared facing him.

• Kuwajima accepted Zenitsu’s determination to fight and promised to support him as his grandfather.
• Zenitsu activated his Demon Slayer Mark and Bright Red Blade, then killed Kaigaku with Thunder Breathing’s Seventh Form: Fire Thunder God.
• Kaigaku blamed others as he crumbled to dust, while his memories revealed how his desperate pursuit of survival had shaped him.
• Zenitsu collapsed after defeating Kaigaku, and Tengen caught him while Urokodaki and Kuwajima stayed to care for him and Gyomei headed toward the fiercest fighting.
• Muzan sensed Yoriichi Tsugikuni’s arrival and trembled as he considered whether to confront Tetsuhiro instead.

Sanemi and Muichiro confronted Kokushibo in Infinity Castle, where his overwhelming strength and Moon Breathing left them struggling to defend themselves. Kokushibo demanded to know what had happened to Yoriichi, and Muichiro accused him of betraying the Demon Slayer Corps as Kokushibo vanished toward him.

• Kokushibo watched the humans and demons fight in Infinity Castle before Genya and Sanemi entered his hall and attacked him.
• Kokushibo wounded Sanemi, then recognized something familiar in Muichiro and questioned him about the Tsugikuni name and Yoriichi.
• Muichiro explained Yoriichi's legendary status, but Sanemi interrupted him and attacked Kokushibo with Wind Breathing.
• Kokushibo countered Sanemi with Moon Breathing, then attacked Muichiro from behind while demanding to know what had happened to Yoriichi.
• Kokushibo engulfed Sanemi in another Moon Breathing attack, and Muichiro challenged him for betraying the Demon Slayer Corps before Kokushibo vanished.

Sanemi and Muichiro fought Kokushibo while Genya prepared traps and weapons to support them. Genya’s tactics blinded and weakened Kokushibo, giving Sanemi and Muichiro an opening to attack as Danzo and the others waited in the shadows.

• Muichiro rejoined the fight after Kokushibo vanished, and Sanemi charged in to help him battle the Upper Rank demon.
• Genya set up a sniper rifle, mines, booby traps, and other equipment while waiting for a clear shot.
• Kokushibo overwhelmed Sanemi and Muichiro, broke Sanemi’s leg, and revealed that he had killed the first Hashira and the Corps’ first Oyakata-sama.
• Genya shot Kokushibo with a sniper rifle, and Sanemi’s blood made the demon dizzy and impaired his fighting.
• Kokushibo rushed Genya but was caught by a transparent glass wall, then blinded by a launcher projectile that exploded in a flash of intense light.
• Sanemi and Muichiro attacked the blinded Kokushibo while Danzo and the others held back.

Genya and Sanemi fought Kokushibo alongside Muichiro, but Kokushibo revealed he was Muichiro’s ancestor and overwhelmed the brothers. As Kokushibo prepared to kill Genya, Tetsuhiro sensed the danger and immobilized him with Repulsive Force.

• Genya’s flare briefly blinded Kokushibo, allowing Sanemi and Muichiro to suppress him, but Kokushibo recovered and drove them back with Moon Breathing.
• Kokushibo identified himself as Tsugikuni Michikatsu and said Muichiro descended from his human child; Muichiro reacted with excitement about being related to Yoriichi.
• Kokushibo became distracted when Muichiro said Yoriichi was alive, but he dodged Genya’s shot and then shattered the Special Glass Wall with Moon Breathing, Eighth Form: Moon-Dragon Ringtail.
• Kokushibo severed Sanemi’s arm and hand, then cut Genya in half; as Genya lay dying, Sanemi begged His Majesty to save him.
• Kokushibo raised his blade to finish Genya, but Tetsuhiro sensed the crisis and used Repulsive Force to stop Kokushibo from moving.

Kokushibo was overwhelmed by the fighters, but his resentment triggered a transformation and memories of his rivalry with Yoriichi Tsugikuni. He recalled killing Yoriichi after the older man froze in place, then realized victory had left him empty as his body began to evolve.

• Hyuga Tieban, Danzo, and Aburame Shiyuki attacked Kokushibo while Sanemi tended to Genya with the Empire's healing medicine.
• Hiruzen, Sabi Usagi, Shinko, and Mima arrived, and the fighters believed only the Demon King remained.
• Kokushibo's regeneration accelerated under the insect swarm, his bones changed, and memories of his life as Tsugikuni Michikatsu surfaced.
• Kokushibo remembered becoming Upper Rank One after accepting Kibutsuji Muzan's blood and later killing Yoriichi Tsugikuni when Yoriichi suddenly froze.
• Kokushibo celebrated defeating Yoriichi, then felt hollow and lonely as he gathered the broken Bamboo Flute and returned to Muzan.

Kokushibo regenerated after his beheading, overwhelmed the assembled fighters with his transformed strength, and broke their seals and defenses with powerful Moon Breathing attacks. As the survivors struggled to withstand his assault, Mima considered gaining demonic power while Hiruzen and the others tried to protect their allies.

• Kokushibo regrew his head and transformed after the fighters severed it, then regenerated from their attacks and blasted apart his opponents with crescent slashes.
• Genya shot Kokushibo into pieces, and Hiruzen and Danzo trapped his remains in a barrel with a sealing formation, but Kokushibo's Blade cut the barrel open.
• Hiruzen's group restrained Kokushibo as he reconstructed, and the fighters destroyed him again with a coordinated barrage of Breathing techniques.
• Kokushibo regenerated once more and unleashed Moon Breathing-Fourteenth Form, shattering the formation and forcing the fighters to endure a storm of moon blades.
• Kokushibo attacked Masachika, Sabito, and Makomo with Moon Breathing-Tenth Form, shredding their bodies and breaking their Nichirin Blades as Mima considered the power of demon transformation.
• Hiruzen raised earthen walls with Shadow Clones, while Hyuga Tieban shielded Genya, Muichiro, and Shin with Rotation and the others tried to redirect Kokushibo's blades; Kokushibo then unleashed Moon Breathing-Eleventh Form.

Kokushibo overwhelmed the gathered fighters, but Yoriichi arrived in spirit and confronted his brother. Yoriichi repeatedly reduced Kokushibo to dust as his regeneration continued, leaving their battle unresolved.

• Kokushibo unleashed a storm of crescent slashes, but Genya's gunfire and the others' attacks opened a path for them to regroup.
• Hatake Shinha and Sakumo severed Kokushibo's neck, and Little A and Dai smashed his regenerated head, but he kept recovering.
• Yoriichi appeared before Kokushibo, who dismissed his brother before launching a devastating Moon Breathing attack that gravely wounded everyone else.
• Yoriichi used the Transparent World and his Sun Breathing to erase Kokushibo's slashes and overwhelm him with rapid strikes.
• Kokushibo repeatedly regenerated after Yoriichi reduced him to dust, while Yoriichi continued cutting him apart.

Yoriichi defeated Kokushibo after hearing his confession and explaining that a deity had brought him back. As Kokushibo crumbled to dust, Yoriichi hurried deeper into the Infinity Castle before his own time ran out.

• Kokushibo confessed that jealousy had driven him to kill the Oyakata-sama, slaughter Yoriichi’s admirers, and pursue immortality so he could surpass his brother.
• Yoriichi told Kokushibo that he had known about his crimes and that a deity had caused his death, but Kokushibo rejected the explanation and attacked with Moon Breathing’s Fifteenth Form.
• Yoriichi used the Transparent World to evade Kokushibo’s attacks and cut him apart, revealing that his own Transparent World was stronger.
• Kokushibo saw his monstrous reflection, questioned whether he had been wrong, and crumbled into dust as Yoriichi bid him rest in peace.
• Tanjiro, Shinobu Kocho, Gyomei, and the others arrived to honor Yoriichi, who said he had little time left and sped deeper into the Infinity Castle.

After Yoriichi defeated Kokushibo, the Demon Slayer Corps and their allies advanced through Infinity Castle toward Muzan. Tetsuhiro stopped Yoriichi from killing Muzan outright, but Muzan died under Yoriichi’s two permitted strikes, ending Yoriichi’s hundred-year pursuit.

• Gyomei urged the group to continue toward Muzan, and Genya found a bloodstained bamboo flute among Kokushibo’s ashes before rejoining them.
• The group fought the remaining demons as they approached Infinity Castle’s center, where Muzan sensed Kokushibo’s death and feared Yoriichi’s return.
• Yoriichi confronted Muzan, who scattered his cells to escape, but Yoriichi’s slashes cut down every fragment.
• Tetsuhiro restrained Muzan and explained that he wanted to keep him alive as a research subject, then offered Yoriichi two strikes to avenge the victims of demons.
• Muzan tried to escape again, but Yoriichi’s two strikes reduced him to nearly transparent powder, and Yoriichi declared that he had won.

Yoriichi vanished after defeating Muzan, who immediately tried to escape by scattering his cells. Tetsuhiro and his summoned monsters destroyed most of them and surrounded the weakened Demon King, but more divine power appeared above.

• Yoriichi honored his agreement with Tetsuhiro and let Muzan's hidden cells gather, while Muzan reformed in a badly wounded state.
• Yoriichi bid farewell to the Demon Slayer Corps and the Shinobi World, then dissolved into starlight as he called out to Uta.
• As everyone mourned Yoriichi, Muzan exploded into scattered cells and tried to flee through the Infinity Castle.
• Hakuji attacked Muzan's cells, while Tetsuhiro summoned the Blue-Eyes Shining Dragon and the Winged Dragon of Ra to burn away most of them.
• Tetsuhiro summoned more monsters and gods, leaving Muzan terrified as Obelisk the Tormentor, Slifer the Sky Dragon, and The Winged Dragon of Ra rose toward a glow in the ceiling.

Tetsuhiro subdued Muzan and let Tanjiro and Nezuko take revenge before dawn, while Zenitsu received a regeneration solution for his service. The Demon Slayer Corps offered to forgo their rewards, but Tetsuhiro insisted that the Empire would honor its reward system.

• Tetsuhiro used the Light of Creation God to reduce Muzan to ash, after which Muzan regenerated as a teenager and tried to flee.
• The Demon Slayer Corps and Nezuko beat Muzan until he begged for mercy, and Tetsuhiro bound him with Wood Release.
• Tanjiro and Nezuko took Muzan away to kill him before sunrise, while Hiruzen reminded Tanjiro that revenge would not bring his family back.
• Zenitsu returned with a lost hand after killing Kaigaku to protect Kuwajima, and Tetsuhiro awarded him a dose of Body Regeneration Solution.
• The Demon Slayer Corps offered to give up their rewards, but Tetsuhiro insisted that the Empire would honor its laws and announced that rewards would follow.

After the Infinity Castle battle ended, Li Tetsuhiro awarded the fighters for their service and ordered the remaining demons eliminated. Tanjiro learned that Muzan had been reduced to a small child and could not avenge his family by killing him, while Li Tetsuhiro promised Muzan a grim future in imperial custody.

• Tobirama reported the victory over the demons and outlined plans to occupy Nippon, unite the world, and continue researching the curse and Demon Slayer Marks.
• Li Tetsuhiro awarded Zenitsu, Hakuji, Tanjiro, and other fighters points, ranks, supplies, and research appointments, then ordered everyone to eliminate the remaining demons.
• The Corps and shinobi swept the Infinity Castle, killing every demon before morning.
• Tanjiro and Nezuko brought the shrunken Muzan to the others, who recognized him by his appearance and scent.
• Tanjiro mourned that he could no longer avenge his family by killing Muzan, and Li Tetsuhiro promised to keep Muzan alive and make him suffer.

Tetsuhiro ordered the Demon Slayer Corps to prepare for war and expand the Empire, but the Hashira objected to entering worldly conflicts. Tanjiro argued that they should protect ordinary people from the injustice that created demons, leaving the Corps moved and reconsidering its role.

• Tetsuhiro ordered members below Class A to clear out demons while the Hashira trained troops for an invasion of Nippon and later expansion.
• Gyomei, Kyojuro, and the other Hashira resisted going to war, while Danzo mocked them and offered to conquer the island with the Empire's forces.
• Tanjiro admitted he did not want war but argued that the Corps should protect people from the cruel conditions and evildoers that helped create demons.
• Tanjiro urged the Hashira to use their strength to serve the Empire and build a better future, persuading several of them to reconsider.
• Tetsuhiro and the others applauded Tanjiro, while Kanao, Zenitsu, and the senior members of the Corps looked on with admiration.