Chapter Summaries

Kanzaki Kumo tracked Chachamaru through Asakusa and used the cat to contact Tamayo and Yushiro. Tamayo agreed to meet him, and Chachamaru began leading him to their hideout.

• Kanzaki Kumo searched Asakusa for demons while exploring the night market and buying gifts for Makomo and the others.
• Kanzaki Kumo spotted Chachamaru, who used Yushiro's Blood Demon Art to disappear and flee.
• Kanzaki Kumo followed Chachamaru across the streets and rooftops, then identified the cat and asked to meet Tamayo and Yushiro.
• Yushiro warned Tamayo that Kanzaki Kumo was dangerous, but Tamayo decided they should meet him.
• Chachamaru stopped concealing itself and led Kanzaki Kumo onward.

Kanzaki Kumo met Tamayo and Yushiro in their hidden home, explained that he knew about Tamayo’s history and medical research, and asked Yushiro to make him concealment talismans. Tamayo remained wary of Kumo’s knowledge, while Yushiro objected to his blunt request.

• Kanzaki Kumo followed Chachamaru through an illusionary wall and met Tamayo and Yushiro in their concealed courtyard.
• Yushiro tried to defend Tamayo when he learned Kumo was a Hashira, but Tamayo stopped him and listened to Kumo.
• Kanzaki Kumo recounted Tamayo’s past, including her escape from Muzan’s control, her medical work, and her effort to turn demons back into humans.
• Kanzaki Kumo praised Tamayo’s expertise and said her knowledge of Muzan and Yoriichi could aid the Demon Slayer Corps.
• Kanzaki Kumo asked Yushiro to create around a dozen Blood Demon Art talismans that could make people invisible, and Yushiro protested his manner of asking.

Kanzaki Kumo agreed to help Tamayo obtain blood from the Twelve Kizuki and asked to borrow Yushiro for a rescue mission. Before Tamayo could decide, Ink Shadow arrived with news, interrupting their discussion.

• Tamayo asked Kanzaki Kumo to collect blood from the Twelve Kizuki so she could advance her research into medicines for demons.
• Kanzaki Kumo learned that Yushiro's paper talismans lasted too briefly for his plans and asked Tamayo to lend Yushiro to him.
• Yushiro refused to leave Tamayo and attacked Kanzaki Kumo, who knocked him unconscious with his sheathed Nichirin Blade.
• Kanzaki Kumo explained that he needed Yushiro's Blood Demon Art to conceal people during a distant rescue mission, and Tamayo said she needed time to consider it and consult Yushiro.
• Ink Shadow called from above with news, so Kanzaki Kumo left to respond.

Kanzaki Kumo returned to the Butterfly Mansion after arranging for Tamayo to research demon-targeting drugs and help earn the Demon Slayer Corps’ acceptance. At the Hashira Meeting, Tengen Uzui joined the gathered Hashira after being promoted.

• Ink Shadow informed Kanzaki Kumo that Tengen Uzui had become a Hashira and that a Hashira Meeting would be held in half a month.
• Kanzaki Kumo gave Tamayo demon-targeting drugs to study and said he would help secure the Demon Slayer Corps’ recognition and protection for her.
• Kanzaki Kumo returned to the Butterfly Mansion, where Makomo, Kanae, Shinobu Kocho, and Kanao welcomed him.
• Kanzaki Kumo considered Nezuko Kamado a suitable companion for Kanao and added saving the Kamado family to his reasons for doing so.
• Kanzaki Kumo brought Kanae and Makomo to the Ubuyashiki Estate, where they met Sabito, Giyu, Shinjuro, and Gyomei before Tengen Uzui arrived for the Hashira Meeting.

After Tengen Uzui sparred with Shinjuro, Kanzaki Kumo returned to the Butterfly Mansion with Kanae and Makomo and talked with Kanae about whether humans and demons could coexist. He promised to bring Kanae a surprise after he returned from another trip.

• Kanzaki Kumo told Tengen Uzui that a Lower Rank Three demon had worn earrings like his, and Uzui asked the Hashira to kill any more demons wearing them.
• Tengen Uzui sparred with Shinjuro using wooden swords and gradually gained the upper hand.
• Back at the Butterfly Mansion, Kanzaki Kumo noticed that Kanae was troubled and asked her what was on her mind.
• Kanae asked whether demons and humans could coexist peacefully, and Kanzaki Kumo explained that demons who preyed on innocent people made coexistence difficult.
• Kanzaki Kumo assured Kanae that exceptional demons who could live peacefully with humans might exist and promised to bring her a surprise when he returned from his trip.

Kanzaki Kumo visited Mount Kumotori to meet the Kamado family and see their Dance of the Fire God. Tanjuro welcomed him after confirming he meant no harm, and Kumo stayed with the family to wait for the nighttime dance.

• Kanzaki Kumo reached the Kamado home after asking nearby residents for directions.
• Tanjuro Kamado assessed Kumo with the Transparent World, then let him enter after deciding he was not a threat.
• Tanjiro Kamado and the rest of the family came out and introduced themselves to Kumo.
• Tanjuro told Kumo the Dance of the Fire God would be performed at night and invited him to stay.
• Kumo told the Kamado children stories about places he had visited on past missions.

Kanzaki Kumo entertained the Kamado children with stories about city life, then brought the family a cartload of food and supplies in exchange for watching the Dance of the Fire God. After spending the afternoon playing with the children, he appreciated how easygoing Kanao was by comparison.

• Kanzaki Kumo told Tanjiro and his siblings about the wonders of cities, and Tanjiro privately worried he could not leave his family to travel.
• Kanzaki Kumo returned with food and household supplies and persuaded Kie and Tanjuro to accept them as payment for watching the Dance of the Fire God.
• Kanzaki Kumo learned that Tanjuro used his keen judgment to oversee the Kamado family's charcoal making.
• The Kamado family shared a lavish lunch with Kanzaki Kumo, who restrained himself from eating too much.
• Kanzaki Kumo played with Takeo, Shigeru, and Delia through the afternoon and decided that Kanao really was the best.

Kanzaki Kumo watched Tanjuro perform the Dance of the Fire God and revealed that it preserved Sun Breathing, the original Breathing Style. He explained that the Kamado family faced danger from demons who might recognize the inheritance, and left Tanjuro considering his offer to move the family somewhere safer.

• Tanjuro performed the Dance of the Fire God before Kanzaki Kumo, Tanjiro, and Nezuko.
• Kanzaki Kumo told Tanjuro that his purpose was to take the Kamado family away.
• Kanzaki Kumo revealed that he belonged to the Demon Slayer Corps and identified the dance as Sun Breathing.
• Kanzaki Kumo explained that Yoriichi Tsugikuni had passed Sun Breathing to a Kamado ancestor and that the Demon King had hunted its practitioners.
• Tanjuro suggested Kanzaki Kumo wanted the inheritance in exchange for protection, and Kanzaki Kumo said that was only partly right.

Kanzaki Kumo arranged to relocate the Kamado family and promised Makomo she could meet a demon who did not eat people. He brought Kanae to meet Tamayo in Asakusa, where Kanae saw that Tamayo and Yushiro behaved unlike the demons she knew.

• Kanzaki Kumo told Tanjuro that he valued his skill with the Transparent World and offered to relocate and support the Kamado family in exchange for learning from him.
• Tanjuro agreed to discuss the offer with his family, and Kanzaki Kumo said he would prepare their move in about twenty days.
• Makomo asked Kanzaki Kumo whether demons who did not eat people existed, and he promised to take her to meet one later.
• Kanzaki Kumo and Kanae traveled to Asakusa and entered Tamayo's hidden home.
• Kanzaki Kumo stopped Yushiro from insulting Kanae, then released him when Tamayo intervened.
• Kanae recognized that Tamayo and Yushiro were demons but observed that they showed none of the aggression toward humans she expected.

Kanzaki Kumo, Kanae, Tamayo, and Yushiro discussed Tamayo’s past and the possibility of her secretly assisting the Demon Slayer Corps with medicine research. Their conversation was interrupted when an unusually undetectable demon entered the courtyard, and Kanzaki Kumo ordered Kanae to get the others to safety.

• Kanzaki Kumo revealed that Yushiro would call Kanae ugly, and Yushiro stopped himself from saying so when he saw Kumo’s drawn Nichirin Blade.
• Tamayo recounted how Muzan had controlled her into killing people, including her family, and explained that her desire for revenge had kept her alive.
• Kanae praised Tamayo’s strength, and Tamayo thanked her and Kanzaki Kumo for treating her as a person rather than a demon.
• Kanzaki Kumo proposed that Yushiro help him relocate a family while Tamayo worked on improving the medicines he had provided.
• Kanzaki Kumo said he would try to arrange secret cooperation between Tamayo and the Demon Slayer Corps if she produced results and Yushiro helped save people.
• Yushiro sensed an approaching demon, and Kanzaki Kumo went outside, saw a gaunt figure crawling into the courtyard, and told Kanae to take the others and leave.

Kanzaki Kumo encountered Hantengu in Asakusa and stalled him while Kanae evacuated Tamayo and Yushiro. After Hantengu transformed into Zohakuten and attacked, Kanzaki Kumo escaped, then arranged to leave Asakusa with the others and discussed bringing Tamayo into the Demon Slayer Corps.

• Hantengu found the hidden courtyard and confronted Kanzaki Kumo, who recognized him as Upper Rank Four and ordered Kanae to take Tamayo and Yushiro away.
• Hantengu transformed into Zohakuten and unleashed wooden dragons, lightning, and wind against Kanzaki Kumo.
• Kanzaki Kumo cut through the dragons, used Zohakuten's brief hesitation to escape, and Hantengu chose not to pursue him.
• Kanzaki Kumo reunited with Kanae, explained Hantengu's clone ability, and confirmed that he had only been briefly numbed by the lightning.
• After learning Hantengu had appeared in Asakusa, Kanzaki Kumo told Tamayo they had to leave; with no safe houses elsewhere, he proposed that she join the Demon Slayer Corps ahead of schedule.

Kanzaki Kumo brought Tamayo and Yushiro toward the Kamado Family while Kagaya prepared a safe house and considered how to work with them. At Mount Kumotori, Tanjiro told Kanzaki Kumo that his father had sensed something watching their home for years, and Kanzaki Kumo promised to take the family somewhere safer.

• Tamayo, Yushiro, Kanzaki Kumo, and Kanae decided to travel to the Kamado Family while Kagaya prepared arrangements for the demons.
• Tamayo worried about whether the Demon Slayer Corps would accept her and Yushiro, and Kanae reassured her that Kagaya was open-minded.
• Tamayo and Yushiro thanked Kanzaki Kumo and Kanae for saving them from an Upper Rank, while Kanzaki Kumo tried to ease the mood and irritated Yushiro.
• Kanzaki Kumo reached the Kamado Family's home and saw warning ropes and bells strung through the woods.
• Tanjiro told Kanzaki Kumo that his father had long felt something watching their home, and Kanzaki Kumo said he had come to move the family somewhere safer.

Tanjuro and his family left Mount Kumotori with Kanzaki Kumo for a Safe House, while Muzan learned they had escaped and sent for Akaza to pursue them. On the journey, Tanjuro sensed that something was still watching the carriage, and Kanzaki Kumo suspected Nakime.

• Tanjuro prepared to move his family after learning that demons might be targeting them.
• Kanzaki Kumo took the Kamado family to a carriage, where he introduced Kanae and explained that the three demons inside did not eat people.
• The Kamado family set off for the Safe House, while an eyeball marked with a large Five watched them leave and vanished with a biwa sound.
• Muzan learned that the Kamado family had left with Kanzaki Kumo, rejected several possible pursuers, and summoned Akaza.
• Tanjuro sensed the same prying presence watching the carriage, and Kanzaki Kumo wondered if Nakime was responsible.

Kanzaki Kumo learned Tanjuro’s advice for reaching the Transparent World and planned to share it with the Demon Slayer Corps. After nightfall, Akaza and another demon arrived at Mount Kumotori to track down Kumo’s carriage.

• Tanjuro explained that reaching the Transparent World required bringing the body close to its limits and using the mind to sense and control the body before observing the world.
• Kanzaki Kumo recognized that his reliance on his exceptional eyes hindered his ability to see with his mind, and thanked Tanjuro for giving him a path to train.
• Kanzaki Kumo asked to share Tanjuro’s insights with capable members of the Demon Slayer Corps, and Tanjuro agreed.
• At night, Akaza and a trembling demon left the Infinity Castle and appeared at the foot of Mount Kumotori.
• Akaza ordered the demon to track down the carriage that had stopped there during the day.

Kanzaki Kumo confronted Akaza while the Kamado family fled in a concealed carriage, aiming to keep the Upper Rank demon occupied until sunrise. Akaza pushed him into a fierce exchange of ranged attacks, and the battle continued as dust filled the space between them.

• Tanjuro sensed a powerful presence catching up to the carriage, and Kanzaki Kumo left the group to confront it while Kanae watched over the family.
• Kanzaki Kumo identified the pursuer as Akaza, killed the tracking demon he carried, and began stalling for dawn.
• Akaza recognized Kanzaki Kumo as the slayer who had killed Gyokko and activated Compass Needle before charging at him.
• Kanzaki Kumo avoided close combat and used Akaza's momentum to keep distance, prompting Akaza to attack with Air Type and then Disorder.
• Kanzaki Kumo countered the barrage with Thunder Breathing, Eighth Form: Storm of Blossoms, and Akaza excitedly urged him to fight harder.

Kanzaki Kumo fought Akaza and stalled the battle by talking while he recovered, then tried to make Akaza remember why he had pursued strength. Akaza briefly recalled blurred figures from his past, but Muzan’s command restored his focus on his assignment, and Kanzaki Kumo faced him again.

• Akaza pressed Kanzaki Kumo with close-range punches, and Kanzaki Kumo blocked them before using a heavy slash to create distance.
• Kanzaki Kumo gave Akaza his name, and Akaza praised his skill before inviting him to become a demon.
• Kanzaki Kumo questioned why Akaza had first trained in martial arts, prompting Akaza to struggle to remember his human past.
• Kanzaki Kumo urged Akaza to recall his master and promised lover, and Akaza struck his head as painful, blurry memories surfaced.
• Muzan reprimanded Akaza and reminded him of his task, ending his attempt to remember; Kanzaki Kumo sighed and prepared for the fight to continue.

Kanzaki Kumo fought Akaza by stalling until sunrise, surviving his powerful final attack at the cost of severe injuries and a shattered Nichirin Blade. As Akaza fled from the sun, Kanzaki Kumo lay wounded but hopeful, and someone called to him from behind.

• Akaza accused Kanzaki Kumo of thwarting him and attacked with Destructive Death: Leg Type: Flashing Flurry.
• Kanzaki Kumo dodged Akaza's attacks with Thunder Breathing, Seventh Form, Dragon's Roam, while waiting for sunrise.
• Akaza unleashed Destructive Death: Final Form: Blue Silver Chaotic Afterglow, and Kanzaki Kumo pierced through the shock waves with Thunder Breathing, Eighth Form, Storm of Blossoms • Pierce.
• Kanzaki Kumo's Nichirin Blade broke, and he used Thunder Breathing, Fifth Form, Flame Thunder Boundary to withstand the final shock wave before it fractured his shoulder and sent him flying.
• As the sun rose, Akaza fled into the mountain forest, while Kanzaki Kumo survived with severe injuries and laughed at the hope of growing stronger.
• Kanzaki Kumo tried to sit up and assessed his injuries when a worried voice called, “Kanzaki-kun!”

Kanae found Kanzaki Kumo badly injured after he fought Upper Rank Three and helped carry him to the Butterfly Mansion for treatment. Sabito and the Butterfly Mansion residents learned about Tamayo and Yushiro, while the Kakushi delivered the Kamado Family and the two demons safely to their destination.

• Kanae returned to find Kanzaki Kumo wounded and bound his injured arm before carrying him toward the Butterfly Mansion.
• Sabito stopped questioning the Kakushi about the demons when Kanae explained that Tamayo and Yushiro had helped save a family and that Kagaya had been informed.
• Sabito and Kanae took turns carrying Kanzaki Kumo to the Butterfly Mansion, where Shinobu Kocho and Butterfly Zemu treated him.
• Kanae told Makomo and the others about the fight with Upper Rank Three and Tamayo and Yushiro, and Makomo agreed to await the Master's decision.
• The Kakushi drove the Kamado Family, Tamayo, Yushiro, and the cat to their destination, arriving early and fleeing after announcing their arrival.

Kanzaki Kumo recovered from his battle with Akaza and called an early Hashira Meeting to share intelligence about the Upper Ranks and a way to grow stronger. He began describing the Upper Ranks’ abilities, leaving the meeting with the most dangerous details still to come.

• Shinobu Kocho finished treating Kanzaki Kumo and scolded him for risking his life, while Kanao, Makomo, and the others visited him.
• Kanzaki Kumo spent ten days recovering, then arrived at the Ubuyashiki Estate with Makomo and Kanae for the Hashira Meeting he had requested.
• Kanzaki Kumo told Kagaya and the Hashira that Akaza had provided his intelligence and said he had information about the Upper Ranks and a way to improve their strength.
• Kanzaki Kumo explained that Upper Rank Six, Daki and Gyutaro, were siblings who had to be beheaded simultaneously, and that a new demon had taken Gyokko’s place as Upper Rank Five.
• Kanzaki Kumo described Upper Rank Four, Hantengu, as a demon who created powerful clones and hid his regenerating main body, making him difficult to kill.

Kanzaki Kumo briefed the Demon Slayer Corps on the Upper Ranks and explained how the Transparent World could counter Akaza’s Compass Needle. Kagaya revealed the Corps’ history of betrayal and devastation, while Shinjuro asked how they could reach the state Kanzaki described.

• Kanzaki Kumo described Akaza’s strength and abilities, and Giyu awkwardly praised Kanzaki for surviving the fight.
• Kanzaki explained that Doma’s icy mist threatened Breathing Style users and that Kokushibo was powerful enough to overwhelm Akaza and might use a Breathing Style.
• Kagaya revealed that Michikatsu Tsugikuni, elder brother of the creator of the First Breathing style, had betrayed the Corps and murdered its leader centuries earlier.
• Kanzaki said Akaza’s Compass Needle sensed fighting spirit and explained that suppressing one’s presence in the Transparent World could evade it and reveal an opponent’s movements.
• Shinjuro asked how the Demon Slayers could reach the Transparent World and how Kanzaki had learned about it.