Chapter Summaries

Lin Guang explained the Guardian Spirit contract to Kanae Kocho, who agreed to live in his Spirit Host Space and become his Guardian Spirit. He summoned her into the physical world, then collapsed from exhaustion, and Kanae Kocho caught him and cared for him.

• Shinobu Kocho kissed Lin Guang, and after they spent time together, she told him to leave while joking that she would find someone to stand up to him.
• Lin Guang revealed to Kanae Kocho that lost souls could become Guardian Spirits and explained that they could switch between soul and physical forms.
• Kanae Kocho agreed to become Lin Guang's Guardian Spirit and entered the Spirit Host Space, where she found a flower-filled landscape and a house like the Butterfly Mansion.
• A golden contract marked Kanae Kocho's name on a mountain, binding her to the space and allowing Lin Guang to summon her.
• Lin Guang summoned Kanae Kocho into the physical world, then fainted from the effort he had spent driving away other lost souls and shaping the space.
• Kanae Kocho caught Lin Guang, laid his head in her lap, and thanked him as he slept.

Lin Guang spent the afternoon with Shinobu Kocho, who showed him a stamina potion she had developed from his samples. After they tested it by sparring, Lin Guang decided the potion could help ordinary Corps members ahead of the coming battle against Muzan Kibutsuji.

• Lin Guang woke with his head on Kanae Kocho's lap, then agreed to wait until he was ready to tell Shinobu about himself before Kanae met her.
• Lin Guang found Nezuko playing in the sunlight, and Shinobu Kocho admitted that Nezuko's kindness made her feel differently about demons.
• Lin Guang and Shinobu discussed the approaching battle, Nezuko's importance to Muzan Kibutsuji, and the Demon Slayer Corps' growing advantage.
• Shinobu showed Lin Guang a stamina potion she had formulated, then joked that he should test it before admitting she had already tried it.
• Lin Guang and Shinobu each drank half the potion and sparred with wooden swords; Lin Guang concluded that it could benefit ordinary Corps members and asked how much Shinobu could make.

Lin Guang opened his Silver Treasure Chests and gained Observation Haki, three talismans, Fire and Wind Release mastery, and wind affinity. He tested his new speed and abilities on a mountaintop while Kanae Kocho watched from within him and resolved to support and protect him and Shinobu.

• Lin Guang opened a Silver Treasure Chest and gained Observation Haki, then opened another and received the Rabbit Talisman.
• Lin Guang gained the Ox Talisman and Horse Talisman from two more Silver Treasure Chests, granting him immense strength and healing.
• Lin Guang opened his final three Silver Treasure Chests and gained Fire Release and Wind Release mastery along with Wind Element Affinity.
• Lin Guang used the Rabbit Talisman to reach a mountaintop quickly and demonstrated his faster hand seals by casting Fire Release: Fire Dragon Flame Bullet.
• Lin Guang controlled wind to cut his palm and watched it heal, while Kanae Kocho witnessed his abilities and decided to stay by his side and protect him and Shinobu.

Mitsuri Kanroji and Muichiro Tokito recovered after the battle at the Swordsmith Village, and the Hashira gathered for an emergency meeting. Amane Ubuyashiki revealed that Tanjiro Kamado was the first swordsman in this era to awaken a Demon Slayer Mark.

• Mitsuri Kanroji and Muichiro Tokito recovered, and Tanjiro woke up and wrote to Tamayo about Nezuko.
• The Hashira gathered at the Demon Slayer Corps Headquarters and discussed the Swordsmith Village battle and the rapid recovery of Mitsuri Kanroji and Muichiro Tokito.
• Amane Ubuyashiki attended in Kagaya Ubuyashiki's place and told the Hashira that his illness had worsened.
• Amane Ubuyashiki warned that Muzan Kibutsuji would seek the demon who had overcome sunlight, likely leading to a final battle.
• Amane Ubuyashiki explained the history and conditions of the Demon Slayer Marks, then revealed that Tanjiro Kamado had awakened the first mark of this era.

The Hashira discussed how the Demon Slayer Mark awakened and learned that marked swordsmen died before age twenty-five. Gyomei Himejima proposed Corps-wide training, while Giyu Tomioka remained distant and Lin Guang decided not to confront him.

• Mitsuri Kanroji described awakening her mark, and Lin Guang explained that her temperature had exceeded 39 degrees and her pulse had surpassed 200.
• Muichiro Tokito suggested that surviving those dangerous physical conditions was what caused the mark to appear, and the Hashira resolved to train for it.
• Amane Ubuyashiki warned that everyone who manifested a mark died before age twenty-five, then left the meeting.
• Giyu Tomioka tried to leave, prompting Sanemi Shinazugawa to challenge him until Lin Guang and Gyomei Himejima stopped the confrontation.
• Gyomei Himejima proposed large-scale group training with the Hashira as instructors, and Giyu agreed to stay and hear the plans despite refusing to participate.
• After the meeting, Shinobu Kocho asked Lin Guang whether he would speak to Giyu, and Lin Guang said he was not the one who could do so.

As the Demon Slayer Corps prepared for battle through Ten Hashira Training, Lin Guang sparred with Giyu Tomioka and gave Shinobu Kocho potions to help the Corps train. Meanwhile, Muzan Kibutsuji’s newly promoted Upper Rank Four, Nakime, searched for the Ubuyashiki Family and Nezuko.

• The Demon Slayer Corps began Ten Hashira Training, while Lin Guang learned that Rose and Lin Mei could no longer find any demons and opened his remaining treasure chests.
• Lin Guang sparred with Giyu Tomioka, whose wooden sword broke at the same time as Lin Guang’s after their strongest forms collided.
• Lin Guang told Giyu Tomioka that Tanjiro had helped him change, and Giyu promised to take the rest of the training seriously.
• Shinobu Kocho visited Lin Guang, who gave her the potions he had obtained and promised to tell her his secrets after Muzan Kibutsuji was defeated.
• Muzan Kibutsuji met with Nakime, now the new Upper Rank Four, whose eyeball-shaped clones searched for the Ubuyashiki Family and Nezuko.

After nearly two months of preparation, Lin Guang sensed Muzan Kibutsuji’s arrival as Muzan confronted the dying Kagaya Ubuyashiki at his home. Kagaya spoke of their shared bloodline and humanity’s undying will, while Muzan insisted his dream of eternal life would come true once he obtained Nezuko.

• Lin Guang sensed a dozen eyeball-like things and realized Muzan Kibutsuji had arrived.
• Muzan Kibutsuji visited Kagaya Ubuyashiki, who was gravely ill and blind, and mocked his condition.
• Kagaya Ubuyashiki explained how Muzan’s birth had cursed their clan and asked what dream had driven him for a thousand years.
• Muzan Kibutsuji admitted that obtaining Nezuko would fulfill his dream of eternal life.
• Kagaya Ubuyashiki declared that human will was eternal and that the Demon Slayer Corps would pursue Muzan forever.

Kagaya Ubuyashiki lured Muzan Kibutsuji to the Corps headquarters and detonated the estate, setting the final battle in motion. Lin Guang rescued Tamayo from her attempt to sacrifice herself, then returned as the Hashira and Tanjiro gathered to face Muzan.

• Kagaya Ubuyashiki told Muzan Kibutsuji that his death would strengthen the Demon Slayer Corps and that Muzan’s death would doom the demons.
• Kagaya Ubuyashiki detonated his estate as Muzan moved to kill him, and Lin Guang sent clones to protect the Corps members.
• Lin Guang arrived to find Gyomei Himejima pinning Muzan with black thorns while Tamayo attacked him, and Lin Guang cut off Tamayo’s arm and carried her to safety.
• Lin Guang handed Tamayo to a clone, which explained that Lin Guang had anticipated her plan, while Yushiro accepted that Lin Guang would protect her.
• Lin Guang returned to Muzan as Gyomei Himejima blocked his attack and the other Hashira and Tanjiro arrived, demanding to know what he had done to Kagaya Ubuyashiki.

After Muzan Kibutsuji sent the Demon Slayer Corps into Infinity Castle, Lin Guang and Shinobu Kocho found Upper Rank Two, Doma, among his wounded victims. Shinobu rescued a woman while Lin Guang blocked Doma’s attack, and the confrontation continued with Doma trying to draw out Shinobu’s painful memories.

• Muzan Kibutsuji dropped the Hashira and other Demon Slayer Corps members into Infinity Castle, while Lin Guang’s clones and Tamayo stayed behind to watch for wounded fighters.
• Tamayo explained that she and Shinobu Kocho had combined four drugs to weaken Muzan, and Lin Guang left the task of finishing him to his original body.
• Lin Guang landed safely with Shinobu Kocho, and the two searched Infinity Castle for demons, heading toward a strong scent of blood.
• Lin Guang and Shinobu found Doma eating wounded women, and Shinobu recognized him as the demon who had killed her sister Kanae.
• Shinobu rescued a woman as Doma attacked with his Iron Fans, and Lin Guang blocked the strikes and dispelled the ice inside the woman’s body.
• Lin Guang and Shinobu condemned Doma’s claims that he was saving his followers, and Doma tried to coax Shinobu into sharing memories she could not let go of.

Shinobu Kocho and Lin Guang fought Doma, using poison and Lin Guang’s control over ice to injure him and destroy his ice constructs. As Doma unleashed his crystalline bodhisattva, Lin Guang rescued Shinobu and called for Kanae to join them.

• Shinobu Kocho attacked Doma over his murder of her sister, and Doma recalled meeting Kanae and wanting to eat her.
• Lin Guang took control of Doma’s ice attacks, while Shinobu Kocho pierced Doma and poisoned him.
• Lin Guang revealed his Ice Breathing and used it alongside Shinobu Kocho’s attacks to wound Doma and sever both his hands.
• Doma summoned a giant crystalline bodhisattva, whose palm shattered the frozen lotus pond as Lin Guang pulled Shinobu Kocho to safety.
• Lin Guang asked Kanae to come out, suggesting she would join the fight against Doma.

Lin Guang, Tanjiro, and Giyu Tomioka encountered Akaza in the Infinity Castle and fought him together. The battle continued as Akaza targeted Tanjiro and challenged Giyu, while Lin Guang and the others pressed their attacks.

• Lin Guang reassured Kiriya Ubuyashiki that he would protect the Demon Slayer Corps and help defeat Muzan.
• Akaza appeared before Lin Guang, Tanjiro, and Giyu, then immediately attacked Tanjiro.
• Lin Guang and Tanjiro severed Akaza’s hands, but Akaza regenerated them and continued attacking.
• Akaza praised Tanjiro’s strength and activated Compass Needle before fighting Lin Guang and Giyu.
• Tanjiro’s surprise attack failed, and Akaza’s kick injured him as Lin Guang and Giyu kept up their assault.
• Akaza praised Giyu’s Water Breathing, asked his name, and attacked him with Flowing Flashing Light.

Lin Guang and Giyu Tomioka fought Akaza together, breaking his ultimate technique and cutting off his head. Akaza refused to die and began another attack.

• Akaza kicked Giyu away and sent Tanjiro flying, but Lin Guang caught Tanjiro and stepped in to fight.
• Lin Guang revealed his blackened, Armament Haki-coated form and battled Akaza with his Ice Breathing techniques.
• Giyu returned and joined Lin Guang, and their combined attacks broke Akaza’s Blue Silver Chaotic Afterglow.
• Lin Guang’s ice-feather assault pinned Akaza down, allowing Giyu to sever his head and manifest a Demon Slayer Mark.
• Akaza tried to reattach his head, but Lin Guang cut it off again and severed both his hands.
• Akaza regenerated his hands and stamped the ground as Lin Guang warned that he had expected this turn of events.

Tanjiro, Giyu Tomioka, and Lin Guang defeated Akaza after he chose to end his own life, while the battle against Doma continued. Lin Guang revealed Kanae Kocho to Shinobu Kocho, and the sisters reunited before turning their attention back to Doma.

• Lin Guang explained that a crimson Nichirin Blade could harm demons who had overcome neck decapitation, and Giyu Tomioka charged at Akaza with renewed resolve.
• As Akaza fell to one knee, Lin Guang stopped Tanjiro and Giyu Tomioka from attacking, and Akaza used Destructive Death: Annihilation Style on himself before crumbling to ash.
• Tanjiro and Giyu Tomioka learned that Lin Guang had been fighting as a chakra clone, which vanished after warning them to find Muzan's hiding place.
• Kokushibo and Doma sensed Akaza's death, and Lin Guang's original body learned that his clone had defeated Akaza.
• Lin Guang revealed Kanae Kocho beside Shinobu Kocho, and the sisters embraced before Lin Guang urged them to return their attention to Doma.

Lin Guang, Shinobu Kocho, and Kanae Kocho defeated Doma, and Shinobu reunited with her sister. Kanao Tsuyuri also recognized Kanae and embraced her, while Inosuke arrived too late to fight.

• Lin Guang used Susanoo to destroy Doma's Ice Crystal Bodhisattva and hold him in place while Shinobu Kocho and Kanae Kocho attacked.
• Lin Guang froze Doma's organs with Snow Burial and severed his neck with Ice Breathing, killing Upper Rank Two.
• Lin Guang collected the nine Silver Treasure Chests Doma dropped and reassured Shinobu Kocho that her reunion with Kanae Kocho was real.
• Inosuke and Kanao Tsuyuri arrived after the battle, and Inosuke complained that he had missed the fight.
• Kanao Tsuyuri recognized Kanae Kocho and embraced her in tears.

Lin Guang, Mitsuri Kanroji, and Obanai Iguro battled Nakime, the new Upper Rank Four, as her control of the Infinity Castle repeatedly separated and displaced them. Meanwhile, Kyojuro Rengoku and Muichiro Tokito were isolated from Gyomei Himejima and encountered Kokushibo.

• Mitsuri Kanroji charged Nakime but was knocked from her platform, and Lin Guang caught her with Geppo.
• Nakime shifted the Infinity Castle around the three demon slayers, repeatedly sending Mitsuri Kanroji, Lin Guang, and Obanai Iguro away from her.
• Obanai Iguro concluded they had to defeat Nakime to force Muzan Kibutsuji aboveground, and the three charged her again.
• Gyomei Himejima led Lin Guang's clone, Kyojuro Rengoku, and Muichiro Tokito toward Muzan Kibutsuji, but Nakime's shifting rooms carried Rengoku and Tokito away.
• Rengoku and Tokito broke through a wall with Flame Breathing and found Kokushibo, who sensed something nostalgic about Tokito.

Kokushibo revealed that he was Tsugikuni Michikatsu, Muichiro Tokito’s ancestor, and fought Muichiro and Kyojuro Rengoku. After they activated their Demon Slayer Marks, Lin Guang and Gyomei Himejima arrived to join the battle.

• Kokushibo recognized something familiar in Muichiro Tokito, asked his name, and learned that the Tsugikuni surname had disappeared.
• Kyojuro Rengoku explained who Tsugikuni was, and Kokushibo revealed his former identity as Tsugikuni Michikatsu and called Muichiro his descendant.
• Muichiro Tokito and Kyojuro Rengoku attacked Kokushibo with Mist and Flame Breathing techniques, but he evaded their strikes.
• Muichiro Tokito and Kyojuro Rengoku activated their Demon Slayer Marks, and Kokushibo countered their attacks with Moon Breathing, wounding Kyojuro.
• Lin Guang attacked Kokushibo with Ice Breathing, and Gyomei Himejima joined him as they arrived beside Muichiro and Kyojuro.

Lin Guang, Gyomei Himejima, Kyojuro Rengoku, and Muichiro Tokito fought Kokushibo together, but he repelled their combined attacks. Lin Guang revealed Armament Haki and survived Kokushibo’s instinctive counterattack, while Sanemi Shinazugawa and Tengen Uzui joined the battle.

• Muichiro Tokito warned the Hashira that Kokushibo’s cutting gusts concealed Full Moon Blades that could wound them.
• Lin Guang, Gyomei Himejima, Kyojuro Rengoku, and Muichiro Tokito launched coordinated attacks, but Kokushibo blocked them with his Moon Breathing and evolving Abnormal Blade.
• Gyomei Himejima activated his Demon Slayer Mark, and Lin Guang activated Armament Haki after deciding not to hold back.
• Lin Guang used Flash and Snow Tiger Sky-Rending Roar to attack Kokushibo, then survived when Kokushibo’s body released blades to counter him.
• Sanemi Shinazugawa attacked Kokushibo, and Tengen Uzui followed with Sound Breathing as Kokushibo’s Full Moon Blades struck Tengen’s explosives.

Lin Guang and the five Hashira fought Kokushibo with coordinated attacks, but Kokushibo’s desperate transformation nearly scattered them. They combined their strength to turn Gyomei Himejima’s flail and their blades red-hot and finally cut through Kokushibo’s neck.

• Tengen Uzui and Sanemi Shinazugawa joined Lin Guang as marked Hashira, and Kokushibo unleashed powerful Moon Breathing attacks against all six swordsmen.
• Lin Guang, Kyojuro Rengoku, and Sanemi Shinazugawa countered Kokushibo’s slashes while Gyomei Himejima and the others closed in through Muichiro Tokito’s mist.
• Muichiro Tokito and Kyojuro Rengoku pinned Kokushibo with their Nichirin Blades, Tengen Uzui restrained his hands, and Gyomei Himejima and Sanemi Shinazugawa attacked his neck.
• Lin Guang formed Frost Armor over the Hashira as Kokushibo erupted with blades and sent Gyomei Himejima and Sanemi Shinazugawa flying.
• Muichiro Tokito and Kyojuro Rengoku turned their blades crimson, and Tengen Uzui severed Kokushibo’s sword-wielding hands, leaving Kokushibo rigid with pain.
• Gyomei Himejima, Lin Guang, Tengen Uzui, and Sanemi Shinazugawa combined their strength to turn Gyomei Himejima’s flail and their blades red-hot and cut through Kokushibo’s neck.

Sanemi Shinazugawa, Lin Guang's clone, and the other Hashira destroyed Kokushibo after he regenerated from decapitation, then the Hashira set off to confront Muzan Kibutsuji. Lin Guang reunited with Shinobu Kocho, Kanao, and Inosuke and led them to a cliff, where they found Muzan's flesh cocoon and Lin Guang's clones guarding four doors.

• Kokushibo broke through his limits and regenerated his head, but the six fighters attacked together and tore his body apart until it crumbled.
• Lin Guang's clone vanished in a puff of smoke and explained that he was not the real Lin Guang; the Hashira suspected he had also created the frost armor that protected them.
• Gyomei Himejima led the Hashira toward Muzan Kibutsuji while Lin Guang received his clone's memories and regretted that the fight had yielded no treasure chest.
• Lin Guang, Shinobu Kocho, Kanao, and Inosuke reached a cliff and spotted a huge flesh cocoon suspended over a bottomless pit, with Lin Guang's clones stationed at four doors.

Lin Guang and his allies took control of Nakime and learned Muzan Kibutsuji had escaped his cocoon, so they moved to send him out of the Infinity Castle. Muzan fought Lin Guang’s clones as Nakime attacked him, and Lin Guang announced that he would send Muzan to the surface.

• Lin Guang’s clone revealed that Yushiro had helped control Nakime and map the Infinity Castle, while Mitsuri and Obanai Iguro headed for Muzan’s hiding place.
• Lin Guang learned that Muzan had broken down the Demon Transformation Medicine and destroyed one of his clones after emerging from the flesh cocoon.
• Muzan fought Lin Guang’s clones, enduring their fire and ice attacks and resisting the clone’s Forced Sleep ability.
• Muzan realized that Nakime had turned against him and connected to her through his blood as she sent a room hurtling toward him.
• Lin Guang told Muzan that it was too late to stop him from sending him to the surface.