Chapter Summaries

Ye Chen upgraded his weapons and armor before emerging from seclusion and learning that the Hashira had intensified their training. Shinobu Kocho also told him Zenitsu Agatsuma’s senior disciple had gone missing, prompting Ye Chen to plan a visit to Zenitsu’s master.

• Ye Chen redeemed a Xeno'jiiva Long Sword and armor set, then coated the sword with tamahagane to make it effective against demons.
• After a week in seclusion, Ye Chen emerged with fewer exchange points and decided his new equipment was sufficient for now.
• Shinobu Kocho gave Ye Chen Poison Ammo developed with Miss Tamayo and said their copied Light Bowgun was weaker than the original.
• Shinobu Kocho reported that Mr. Rengoku, Mr. Tomioka, and the other Hashira had been training intensely, while Zenitsu Agatsuma had also begun training desperately.
• Shinobu Kocho explained that Zenitsu Agatsuma’s senior disciple had gone missing, and Ye Chen suspected Kaigaku had become a demon.
• Ye Chen decided to take Zenitsu Agatsuma to visit his master and try to save him from committing seppuku.

Ye Chen took Zenitsu Agatsuma to visit his ailing grandfather, Jigoro Kuwajima, and revealed his suspicions about Kaigaku’s disappearance. Jigoro believed his disciple may have betrayed him and said he would take responsibility, so Ye Chen asked Zenitsu what he would do if his grandfather committed seppuku.

• Ye Chen visited Tanjiro, Inosuke, and Zenitsu at their training grounds and took Zenitsu to see the former Rumble Hashira, Jigoro Kuwajima.
• Zenitsu reunited with Jigoro and tearfully insisted he would stay to look after him, but Jigoro shoved him away for spouting nonsense.
• Ye Chen observed Jigoro’s declining condition and told him he had information and suspicions about his eldest disciple, Kaigaku.
• Jigoro explained that Kaigaku’s disappearance showed few signs of a struggle and suggested he had either gone into hiding or become something worse.
• Jigoro said a master must bear responsibility for a disciple’s mistakes, but Ye Chen argued that Kaigaku should be made to answer for betraying him.
• Ye Chen grabbed Zenitsu and asked what he would do if his grandfather committed seppuku.

Ye Chen helped Zenitsu Agatsuma stop Jigoro Kuwajima from committing seppuku over Kaigaku becoming a demon, and Zenitsu resolved to confront his former senior. Meanwhile, Muzan Kibutsuji tested an experiment to make a demon withstand sunlight, but it failed, and he ordered his researchers to keep trying.

• Ye Chen told Zenitsu Agatsuma that Jigoro Kuwajima planned to commit seppuku because Kaigaku had become a demon, and Zenitsu clung to his gramps, begging him not to die.
• Jigoro Kuwajima denied that he would perform seppuku, while Ye Chen teased him and urged Zenitsu to act against Kaigaku.
• Ye Chen left Zenitsu and Jigoro Kuwajima alone to talk, and Zenitsu later emerged believing his gramps would not kill himself.
• Zenitsu Agatsuma thanked Ye Chen and vowed he would not forgive Kaigaku, while Ye Chen resolved to prepare to take down Muzan Kibutsuji.
• Muzan Kibutsuji tested a demon for resistance to sunlight by throwing him outside, where the sunlight destroyed him.
• Muzan Kibutsuji killed a researcher who tried to make excuses and ordered the remaining researchers to continue experimenting until they succeeded.

Three months after the trio’s training, Shinobu Kocho learned that demons had gathered on Spider Mountain and set out with Ye Chen and Tomioka. On the mountain, Inosuke and Zenitsu fought spider demons while Tanjiro faced Lower Rank Five Rui, watched by Doma, Enmu, and Rokuro.

• Ye Chen saw Zenitsu Agatsuma pester Nezuko and argue with Tanjiro while Inosuke remained unusually quiet and distracted.
• Tamayo and Shinobu Kocho discussed demon-to-human medicine, changes in Nezuko, and Ye Chen’s Light Bowgun before a crow delivered news of Spider Mountain.
• Shinobu Kocho told Ye Chen that she and Tomioka had been assigned to investigate the mountain, where a Twelve Kizuki might be present, and Ye Chen joined them.
• On Spider Mountain, Inosuke killed a giant spider demon using Beast Breathing, Eleventh Form, Fang Dance, while Zenitsu Agatsuma beheaded the older spider brother with Thunder Breathing, First Form, Thunderclap and Flash.
• Tanjiro confronted Rui, Lower Rank Five, who demanded Nezuko, and switched from Water Breathing to Hinokami Kagura.
• Doma watched Tanjiro and Nezuko from a tree with Enmu and Rokuro, noting that they were the pair Muzan had ordered them to watch.

Tanjiro and Inosuke confronted Doma, who had captured Nezuko and revealed that he had eaten Inosuke’s mother. As Doma prepared to attack them, Shinobu Kocho shot him in the forehead with her Light Bowgun.

• Tanjiro fought Rui until Doma appeared, froze Nezuko, and trapped Tanjiro’s legs in ice.
• Inosuke charged Doma, who removed his boar mask and recognized him as the baby he had seen with his mother fifteen years earlier.
• Doma told Inosuke that his mother had fled the Paradise Cult and that he had eaten her, provoking Inosuke to attack with Beast Breathing, Eleventh Form, Fang Dance.
• Doma healed from Inosuke’s slashes and prepared to use Blood Demon Art, Tenman Lotus, after Enmu urged him to take Nezuko to Muzan.
• Shinobu Kocho shot Doma in the forehead with her Light Bowgun.

Shinobu Kocho and Ye Chen attacked Doma, whose poison and weapons left him badly weakened. Doma tried to escape with Nezuko as a hostage, but Ye Chen blocked the Infinity Castle doors and Shinobu helped Nezuko break free.

• Shinobu Kocho shot Doma with poison-laced bullets and overwhelmed his ice defenses with rapid fire.
• Ye Chen ambushed Enmu and Rokuro, while Shinobu shot Rui, completing Ye Chen’s mission to slay three High-Level Demons.
• Doma summoned Ice Crystal Dolls and tried to flee with Nezuko through doors opened by Nakime.
• Ye Chen used Flame Burst to destroy the escape doors, then severed Doma’s legs when Doma tried to use Nezuko as a shield.
• Shinobu shot the hand holding Nezuko, allowing Nezuko to break free and jump to Ye Chen’s side.

Ye Chen broke through Doma’s attacks and killed Upper Rank Two, ending Shinobu Kocho’s long-held grief. As Muzan watched, Hantengu seized Nezuko and flew away, prompting Ye Chen to pursue him.

• Ye Chen cut through Doma’s Ice Bodhisattva and used armor to charge through the icy mist and destroy the Ice Crystal Dolls.
• Ye Chen severed Doma’s head, and Doma failed to overcome decapitation before his head crumbled away.
• Ye Chen received 2,341 exchange points, while Shinobu Kocho praised his strength and felt a shackle around her heart fall away.
• Muzan watched Doma die and ordered Hantengu to act.
• Hantengu grabbed Nezuko and flew off as Tanjiro cried out, and Ye Chen rushed after them.

Ye Chen pursued Urogi to rescue Nezuko while Hantengu’s clones and Kokushibo obstructed him. After wounding Kokushibo with his enhanced Xeno'jiiva Long Sword, Ye Chen fell into a trap and was dragged through a doorway by demonic hands.

• Urogi flew off with Nezuko as Karaku, Sekido, and Aizetsu blocked the others; Giyu Tomioka arrived to protect Tanjiro from Sekido’s lightning.
• Ye Chen leapt toward Urogi, but Kokushibo intercepted him and let Urogi escape farther ahead.
• Ye Chen attacked Kokushibo with his Xeno'jiiva Long Sword, then used a Demon Drug and a Might Seed to overpower him.
• Kokushibo retreated toward a field of hidden doorways, where Ye Chen struck him with a powerful slash and opened a deep wound.
• The ground opened beneath Ye Chen and Kokushibo, and demonic hands pulled Ye Chen through one of the doorways.

Muzan reflected on accepting variables as Zenitsu Agatsuma rescued Nezuko and Giyu Tomioka and Shinobu Kocho fought Akaza. In the Infinity Castle, Ye Chen continued chasing Kokushibo while Nakime interfered with the castle’s shifting corridors.

• Muzan considered how he had changed his approach to unexpected variables and recognized that another one had appeared.
• Zenitsu Agatsuma severed Urogi’s claw to free Nezuko, but Urogi attacked them again and Nezuko kicked him back.
• Giyu Tomioka and Shinobu Kocho defeated the pressure from Karaku, Aizetsu, and Sekido before Akaza arrived and attacked Giyu.
• Shinobu Kocho fired poisoned shots at Akaza while Giyu Tomioka protected her with Dead Calm, and Shinobu sent Tanjiro and Inosuke to help Nezuko and Zenitsu.
• Ye Chen chased Kokushibo through the Infinity Castle, cutting through a barrier Nakime dropped in his path as Kokushibo tried to escape and counterattack.

Tanjiro, Inosuke, and Zenitsu awakened Demon Slayer Marks while fighting Zohakuten and searching for Hantengu’s true body. Zenitsu beheaded Hantengu, causing Zohakuten to crumble, but Nezuko remained trapped in a wooden dragon as dawn broke.

• Tanjiro arrived to protect Nezuko, awakened a Demon Slayer Mark, and cut through Zohakuten’s wooden dragon.
• Tanjiro sent Zenitsu to find Hantengu’s true body while he and Inosuke held off Zohakuten; Inosuke also awakened a Demon Slayer Mark.
• Zenitsu found Hantengu and attacked, but Hantengu grew into a Cowardice Demon and grabbed him by the throat.
• A wooden dragon captured Nezuko, and its attacks knocked Tanjiro and Inosuke unconscious as they tried to rescue her.
• Zenitsu struck the Cowardice Demon’s heart, awakened a lightning-like mark on his arm, and beheaded Hantengu; Zohakuten began crumbling as dawn arrived, with Nezuko still trapped.

Nezuko overcame sunlight, and Tanjiro reunited with her as Muzan learned of her transformation and prepared to attack the Demon Slayer Corps Headquarters. Muzan also tried to free Kokushibo from a relentless pursuer inside the Infinity Castle by sending a horde of demons to wear the human down.

• Nezuko survived exposure to sunlight, escaped the Wood Dragon, and helped Tanjiro to his feet before he embraced her in relief.
• Muzan saw Nezuko's transformation through Hantengu's final live feed and ordered Akaza and Kokushibo to return.
• Muzan kept his researchers working after deciding their other research results made them useful.
• Akaza arrived badly injured, and Muzan announced that Gyokko had located the Demon Slayer Corps Headquarters and that their strongest obstacle was trapped.
• Muzan saw through Kokushibo's eyes that a human was still pursuing him through the Infinity Castle, while Nakime said she could not relocate Kokushibo because he was moving too fast.
• Muzan ordered Nakime to send two thousand demons after the pursuer to tire him out and give Kokushibo a chance to escape.

Ye Chen relentlessly chased Kokushibo through the Infinity Castle until Nakime summoned a huge demon horde, which he gleefully attacked for exchange points. Kokushibo escaped and joined Muzan, while the Demon Slayer Corps mistakenly believed Ye Chen was dead and braced for Muzan’s planned attack on their headquarters.

• Ye Chen pursued Kokushibo for nearly seven hours through Nakime’s shifting terrain, landing only a few grazing blows.
• Nakime summoned a horde of demons to overwhelm Ye Chen, but he charged into them and began slaughtering them for exchange points.
• Kokushibo recognized Muzan’s plan to exhaust Ye Chen with numbers and had Nakime send him outside the Infinity Castle.
• Muzan told Kokushibo to recover his strength because they would attack the Demon Slayer Corps Headquarters that night.
• The Demon Slayer Corps discovered Ye Chen was missing, and several members assumed he had died, though Makomo insisted he would be safe.
• Giyu Tomioka confirmed that the female demon had overcome sunlight, and the Corps worried that Muzan knew and a major conflict was coming.

Kagaya Ubuyashiki and the Demon Slayer Corps prepared for Muzan Kibutsuji’s attack while arranging to protect Nezuko. Muzan assembled his demons and potions for an assault on the Corps, determined to capture Nezuko and destroy his enemies.

• Kagaya Ubuyashiki warned that Muzan had set his sights on Nezuko, and the Hashira agreed to protect her.
• At Ye Chen’s base, Tanjiro, Zenitsu Agatsuma, and Inosuke discussed strange marks and Ye Chen’s disappearance as Xiao Hua and Kumataro reacted to Zenitsu’s remarks.
• Makomo returned from headquarters and told Tanjiro to move Nezuko to a safe location, explaining that Muzan would target her because she had overcome sunlight.
• Tanjiro agreed to take Nezuko to the designated location, where she could be protected and treated with Miss Tamayo’s medicine.
• Muzan ordered Kokushibo, Gyokko, and the new Upper Rank Six to carry out the attack and capture Nezuko, while bringing potions and four thousand demons to exterminate the Demon Slayer Corps.

Tamayo and Shinobu Kocho prepared poison-loaded weapons and wondered whether Ye Chen had survived. Meanwhile, Ye Chen slaughtered demons in the Infinity Castle, chased Nakime through the air with Moonwalk, and discovered that the demons she summoned could provide a new way to farm exchange points.

• Tamayo told Shinobu Kocho that the medicine should work on Muzan Kibutsuji and that they had made over a dozen copies of Ye Chen's Light Bowgun.
• Tamayo said she doubted Ye Chen had died, and Shinobu Kocho hoped he was safe.
• Ye Chen kept killing demons in the Infinity Castle, while Nakime tried to slow him by changing the terrain and sending demons fleeing into his path.
• Ye Chen used Six Powers, Moonwalk to fly after Nakime, cutting through the platforms she sent at him.
• Nakime summoned demons in front of Ye Chen to distract him, and he realized he could use them as a new demon-farming trick.

Muzan led a massive Demon Tide against the Demon Slayer Corps Headquarters, where the Corps used Light Bowguns and traps to ambush his forces. After Tamayo’s drugged shots and the Hashira’s attacks weakened him, Muzan used a Potion to counter the drugs, while Kokushibo and Akaza joined the battle.

• Muzan ordered two thousand demons to advance on the Demon Slayer Corps Headquarters while Kokushibo and the other Upper Ranks followed behind.
• The Corps fired Light Bowguns into the approaching Demon Tide, killing nearly a hundred demons before Muzan ordered the survivors to attack from the flanks.
• Shinobu Kocho and Tengen Uzui prepared to defend the headquarters, while Makomo said Xiao Hua had arranged protection for Kagaya Ubuyashiki.
• Muzan confronted Kagaya Ubuyashiki, but a Pitfall Trap paralyzed him and Tamayo shot him with bullets carrying special drugs.
• Gyomei Himejima, the hidden Hashira, and the Three Little Ones attacked Muzan as Kokushibo and Akaza arrived to support him.
• Tamayo revealed that her drug was turning Muzan back into a human, but Muzan crushed a Potion inside his body to counter its effects.

Tamayo used Ye Chen’s modified weapons to pin Muzan and weaken Kokushibo, while the Hashira and the Three Little Ones fought to prevent the demons from rescuing him. Muzan remained trapped as the Demon Slayers aimed to hold him until sunrise.

• Tamayo fired the Seastone-tipped Wyvernfire Cannon, piercing Muzan and pinning him to a building; its effect left him too weak to escape.
• Gyomei Himejima called for the Demon Slayers to keep Muzan pinned until sunrise, while Kokushibo and Akaza charged to rescue him.
• Kokushibo entered his third stage and broke through the fighters’ initial obstruction, but Tamayo’s Light Bowgun bullets slowed him with poison and drugs.
• The Hashira and the Three Little Ones fought Kokushibo and Akaza, preventing them from reaching Muzan.
• Muzan saw Tanjiro’s earrings and Hinokami Kagura and angrily thought of Yoriichi Tsugikuni as he remained trapped.

Sakonji Urokodaki, Xiao Hua, and Redhelm fought off Gyokko and Kaigaku while protecting Nezuko, but Muzan ordered the demons to regroup. In the Infinity Castle, Ye Chen realized he could target the Blood Demon Art sustaining the castle and unleashed his Netherworld Fire.

• Gyokko appeared in Nezuko’s safe house and tried to seize her, but Xiao Hua cut off his hand with a Boomerang.
• Kaigaku attacked Redhelm in the courtyard, but Redhelm overpowered him and repeatedly sent him flying.
• Nezuko burned Gyokko with Exploding Blood after he wounded her, while Sakonji Urokodaki and Xiao Hua fought to protect her.
• Muzan ordered Gyokko to leave Nezuko and come help him, so Gyokko and Kaigaku withdrew while Sakonji Urokodaki stayed with Nezuko.
• Ye Chen, unable to find the vanished Nakime or a way out of the Infinity Castle, decided to absorb the Blood Demon Art sustaining it and activated his Netherworld Fire.

Ye Chen destroyed the Infinity Castle, killed Nakime, and learned that Trash Boss had raided his home. Meanwhile, Tanjiro and Gyomei entered the Transparent World and turned the battle against Akaza and Kokushibo, but Gyokko freed Muzan from the Wyvernfire Cannon.

• Ye Chen emerged from the collapsing Infinity Castle, killed Nakime, and discovered messages saying Trash Boss had raided his home.
• Tanjiro awakened the Transparent World and beheaded Akaza, who reattached his head but struggled to fight Tanjiro afterward.
• Gyomei entered the Transparent World, feinted against Kokushibo, and struck him with his Meteor Hammer.
• Gyokko arrived and blasted open the building holding Muzan, freeing him from the Wyvernfire Cannon.

Ye Chen arrived at the Demon Slayer Corps Headquarters riding Little Star, a Valstrax, and struck Muzan with a Sky-Strike. After unlocking the Demon Slayer Mark and Transparent World, Ye Chen saw Muzan preparing to flee and threw a Paintball at him.

• Muzan escaped his restraints, healed his chest, and prepared to attack the Demon Slayer Corps members.
• Ye Chen rode Little Star into the battle, crashing into Muzan and pinning him beneath the Valstrax's claw.
• Muzan broke free and healed, then Ye Chen ordered Little Star to attack with Jet Dragon Charge and Dragon Energy Blast.
• Muzan dodged Little Star's attacks and began looking for a chance to retreat.
• Ye Chen spent 4,000 Exchange Points to unlock the Demon Slayer Mark and Transparent World, raising his combat rating to A-.
• Ye Chen spotted Muzan trying to run and threw a Paintball at him.

Ye Chen defeated Kokushibo and Akaza while Little Star pursued Muzan. He left the Demon Slayer Corps to block Muzan's escape routes and headed into the fight against the Demon King himself.

• Muzan fled toward Kokushibo and Akaza, ordering them to hold off Ye Chen, Little Star, and the Demon Slayer Corps while he escaped.
• Ye Chen sent Little Star after Muzan and attacked Kokushibo, overpowering and beheading him; Kokushibo crumbled away, leaving a broken flute.
• Ye Chen evaded Akaza's Compass Needle, pinned him down, and drained his blood's energy until Akaza crumbled away.
• Ye Chen warned the Demon Slayer Corps to avoid fighting peak-strength Muzan and told them to block his escape routes instead.
• Sanemi Shinazugawa objected, but Gyomei Himejima persuaded him to follow Ye Chen's plan as Ye Chen ran toward Muzan.