Chapter Summaries

After Gyutaro and Daki recalled their human memories under the influence of Miss Tamayo’s medicine, Lin Yoriichi learned information about the Infinity Castle and reported the medicine’s effects. As the Kakushi arrived to handle the aftermath, Lin Yoriichi sensed a watcher and struck an ice sculpture that suggested another demon’s Blood Demon Art was nearby.

• Lin Yoriichi realized Miss Tamayo’s medicine had affected Gyutaro and Daki, prompting them to recall their human lives and their former names.
• Lin Yoriichi asked Gyutaro about the Infinity Castle, received information useful to Yushiro, and recorded his discovery for Miss Tamayo and Yushiro.
• Gyutaro and Daki turned to ash, and Lin Yoriichi summoned Chachamaru to send his report.
• Goto and the Kakushi arrived to check on Lin Yoriichi, Giyu Tomioka, and Tengen Uzui and handle the damaged Kyogoku House.
• Lin Yoriichi sensed a watcher and hurled his Nichirin Blade at an ice sculpture; he recognized its appearance as resembling the Blood Demon Art Crystalline Divine Child.

Lin Yoriichi asked Kagaya Ubuyashiki to help spread false news that the Blue Spider Lily had been discovered, hoping to draw out Doma and Muzan Kibutsuji's other subordinates. Kagaya agreed to use the Ubuyashiki Family's resources to make the story convincing, and the chapter ended with their plan taking shape.

• Lin Yoriichi realized he needed a way to find Doma and decided to speak with Kagaya Ubuyashiki.
• Lin Yoriichi proposed announcing that a botanist had discovered the Blue Spider Lily to attract Muzan Kibutsuji's attention and draw out his subordinates.
• Kagaya Ubuyashiki explained that the Ubuyashiki Family had a greenhouse and could use white spider lilies dyed blue for the ruse.
• Kagaya Ubuyashiki planned to fund universities, research institutions, newspapers, and public events to spread the false discovery.
• Lin Yoriichi accepted Kagaya Ubuyashiki's plan to use the family's wealth to make the Blue Spider Lily story credible.

Lin Yoriichi watched Kagaya Ubuyashiki use a staged Blue Spider Lily discovery to draw out Muzan Kibutsuji and his followers. Muzan ordered Doma to investigate, while Lin Yoriichi and Shinobu Kocho monitored the daytime exhibition and spotted suspicious visitors.

• Muzan Kibutsuji learned from Doma that humans had discovered the Blue Spider Lily and grew furious when he learned it bloomed only briefly during the day.
• Muzan Kibutsuji ordered Doma to have his human followers gather information and try to obtain the Blue Spider Lily.
• Kagaya Ubuyashiki publicized the discovery and arranged a daytime exhibition to attract Doma's followers.
• Lin Yoriichi and Shinobu Kocho watched the exhibition, where Kakushi including Goto and Momoki Haruko posed as researchers.
• Lin Yoriichi noticed several tense, fast-breathing visitors trying to approach the Blue Spider Lily, and an honest-looking Kakushi turned them away.

Shinobu Kocho let members of the Eternal Paradise Cult lead her to Doma after they failed to steal the Blue Spider Lily. Doma recognized from her breathing that she was a Demon Slayer, while Muzan Kibutsuji ordered him to obtain the flower before the exhibition ended.

• Lin Yoriichi followed the suspicious cult members and overheard them decide to return for the Blue Spider Lily another day.
• Shinobu Kocho appeared in the alley and pretended to be interested in the Eternal Paradise Cult, allowing its members to take her away.
• Doma reflected on the demons who had disappeared and used an eyeball on his hand to communicate with Muzan Kibutsuji.
• Doma told Muzan Kibutsuji that the cult members were returning without the Blue Spider Lily and had brought a short woman with them.
• Muzan Kibutsuji ordered Doma to get the Blue Spider Lily before the exhibition ended, and Doma realized Shinobu Kocho was a Demon Slayer.

Shinobu Kocho confronted Doma, the demon who killed her older sister, at the Eternal Paradise Cult’s headquarters. As Doma unleashed his Blood Demon Arts against Shinobu and Lin Yoriichi, Lin’s blade destroyed the ice attacks and opened the ceiling to let in sunlight.

• Shinobu Kocho arrived at the Eternal Paradise Cult’s headquarters with cultists who had failed to find the Blue Spider Lily, and Doma forgave them for the day.
• Doma recognized Shinobu Kocho as the younger sister of the woman he had killed and said he wanted to taste her.
• Lin Yoriichi tossed Shinobu Kocho her Nichirin Blade, and she attacked Doma with its poison-coated tip.
• Doma summoned ice duplicates and unleashed multiple Blood Demon Arts against Shinobu Kocho and Lin Yoriichi.
• Shinobu Kocho thrust her blade through the ceiling as Lin Yoriichi cut apart Doma’s ice attacks and opened a path for sunlight.

Lin Yoriichi and Shinobu Kocho killed Doma, and Lin used a drug to question him about the Infinity Castle, Kokushibo, and Akaza. Akaza arrived near Doma’s cult headquarters, only for Muzan Kibutsuji to order him away and tell him Doma was dead.

• Lin Yoriichi cut Doma down and exposed him to sunlight while Shinobu Kocho stabbed him with her blade and poured wisteria poison into his body.
• Lin Yoriichi severed Doma’s head, crushed a drug vial, and questioned him about the Infinity Castle, Kokushibo, and Akaza.
• Muzan Kibutsuji contacted Akaza through an eye on his hand and ordered him to find and, if necessary, help Doma.
• Akaza hurried toward the Eternal Paradise Cult headquarters, but Muzan Kibutsuji suddenly told him to leave because Doma was dead.
• Akaza asked whether Doma had really died this time.

Akaza struggled with doubts about his past as Muzan ordered him away from Yoriichi Tsugikuni. Meanwhile, Kaigaku ran into Akaza and offered to betray the swordsmen at a nearby Wisteria Family House, leaving Akaza grim-faced.

• Akaza wondered why he had become a demon and why he could not remember, but Muzan urged him to leave and avoid fighting Yoriichi Tsugikuni.
• Kaigaku overheard Demon Slayer Corps swordsmen criticize him and discuss the wisteria incense burner, which reminded him of how he had once lured a demon to survive.
• Kaigaku left the Wisteria Family House and encountered Akaza, recognizing the demon as Upper Rank Three.
• Kaigaku knelt and begged Akaza to spare him, offering to disable the wisteria incense burner and poison the swordsmen's well.
• Akaza's expression turned grim when Kaigaku proposed poisoning the well.

Akaza killed Kaigaku in a rage after Kaigaku offered to help him by poisoning the well, then returned to the Infinity Castle and faced Muzan Kibutsuji’s punishment. As Muzan injected him and Nakime with more blood, Akaza remembered who Koyuki and Keizo were.

• Akaza attacked Kaigaku over his offer to poison the well and beat him to death in a crater.
• Swordsmen from the Wisteria Family House found the crater and planned to report the death to the Master.
• Akaza returned to the Infinity Castle and sensed that Nakime had recently suffered severe injuries.
• Muzan Kibutsuji scolded Akaza over the deaths and disappearances of the Twelve Kizuki and threatened to promote him to Upper Rank Two.
• Muzan Kibutsuji pierced Akaza and Nakime with his transformed arms and injected them with blood, causing Akaza to remember Koyuki and Keizo.

Lin Yoriichi learned about the rescued women from Doma’s cult and Kaigaku’s death, then discussed a new Blue Spider Lily lure with Kagaya Ubuyashiki. He found Sayo’s name again in a report about relocating the women housed at a Wisteria Family House.

• Sanemi Shinazugawa thanked Lin Yoriichi for helping kill Doma, who had murdered Kanae Kocho.
• Sanemi Shinazugawa told Lin Yoriichi that the Kakushi had rescued women whom Doma’s followers had lured to the Eternal Paradise Cult.
• Lin Yoriichi read a report stating that Kaigaku had been killed by a demon at a Wisteria Family House, and suspected Akaza had killed him.
• Lin Yoriichi inferred from Kaigaku’s death that Akaza might have recovered some memories of his human life.
• Kagaya Ubuyashiki planned to publicize that the Blue Spider Lilies were about to wither to draw Muzan Kibutsuji’s subordinates out again.
• Lin Yoriichi saw Sayo’s name on a report about relocating the rescued women.

Lin Yoriichi told Gyomei Himejima that Sayo had been found and brought him to meet her. Sayo prepared to explain her past, but froze when she saw how much more muscular Gyomei had become.

• Gyomei Himejima learned of Kaigaku's death and mourned as memories of his past returned.
• Lin Yoriichi told Gyomei that Sayo wanted to see him, and Gyomei eagerly agreed to go meet her.
• Sayo told Momoki Haruko that her teacher was Gyomei Himejima, and Momoki recognized the name and promised to arrange a reunion.
• Sayo grew frightened that Gyomei might not want to see her, while Momoki warned that he had changed a little.
• Lin Yoriichi and Gyomei arrived, and Sayo stared at Gyomei's muscular build in disbelief.

Gyomei Himejima reunited with Sayo, who explained that the children had tried to protect him and thanked him for fighting for her. Days later, Susamaru and Yahaba attacked Murata, but Muichiro Tokito arrived and challenged their claim to be Upper Ranks.

• Gyomei Himejima sensed Sayo sobbing, embraced her, and told her he was glad to see her again.
• Sayo apologized for what happened and explained that the children had gone outside to find help or weapons, while the demon had killed everyone and Gyomei had saved her.
• Susamaru and Yahaba, newly empowered and marked as Upper Ranks by their lord, set out to draw the Demon Slayer Corps' attention.
• Susamaru and Yahaba ambushed Murata, and Susamaru hurled a temari at him with Yahaba's arrows guiding it.
• Muichiro Tokito cut the temari in half and faced Susamaru and Yahaba, dismissing them as weak Upper Ranks.

Lin Yoriichi realized Muzan Kibutsuji had sent demons to probe the Demon Slayer Corps before retrieving the Blue Spider Lily, and joined the fighting to disrupt his plan. At the exhibition hall, Akaza’s human memories resurfaced until Kokushibo took over the retrieval and ordered him to draw the Corps’ attention.

• A Kasugai Crow reported that Murata and Muichiro Tokito had slain two demons, and Lin Yoriichi recognized them as the Temari Demon and Arrow Demon Muzan had strengthened to test the Demon Slayer Corps.
• After another crow reported demon attacks in multiple locations, Lin Yoriichi left the exhibition hall and joined the fighting, hoping to turn Muzan’s cautious scheme against him.
• Muzan Kibutsuji confirmed through an eye on Akaza’s hand that Lin Yoriichi was occupied and ordered Akaza to steal the Blue Spider Lily and escape with Nakime’s help.
• Akaza’s memories of Keizo and Koyuki returned, leaving him dazed despite Muzan’s pain-inducing control.
• Kokushibo found Akaza, took over retrieving the Blue Spider Lily, and told Akaza to draw the Demon Slayer Corps’ attention and flee if he saw Lin Yoriichi.

Akaza fought Kyojuro Rengoku while Lin Yoriichi watched and secretly released a drug, hoping to recover Akaza’s memories and question him. Rengoku’s blade turned dark red and his fighting spirit vanished from Akaza’s senses, leaving Akaza unable to regenerate his severed arm as the battle intensified.

• Akaza questioned whether Muzan was as underhanded as the weaklings he despised, then encountered Kyojuro Rengoku and accepted his challenge.
• Rengoku asked Lin Yoriichi not to interfere, insisting that this was his battle with Akaza.
• Akaza recognized Lin Yoriichi from the train station and realized the swordsman was far more dangerous than he had seemed.
• Lin crushed a vial of drug, hoping it would help Akaza recover his human memories and reveal information when questioned.
• Akaza attacked Rengoku’s arms, but Rengoku evaded him, awakened his Demon Slayer Mark, and severed one of his arms with a dark red blade.
• Akaza discovered that his arm would not regenerate and that Rengoku’s fighting spirit had vanished from his senses.

Akaza fought Kyojuro Rengoku and began approaching the Supreme Territory, but Tamayo’s Drug took effect and restored his human memories. He remembered Koyuki and his true name, Hakuji, and stopped fighting.

• Akaza questioned why he had spent a hundred years seeking strength and wondered what he had once wanted to protect.
• Akaza and Kyojuro Rengoku traded techniques before unleashing their ultimate attacks, each wounding the other.
• Akaza reached the threshold of the Supreme Territory, then noticed the peculiar fragrance and saw Koyuki appear before him.
• Kyojuro Rengoku asked Lin Yoriichi whether he should kill Akaza, but Lin Yoriichi gave him a bottle of the Drug and said the fight was over.
• Koyuki called Akaza Hakuji and asked him to stop fighting, and he remembered his human name.

Hakuji shared information about the Infinity Castle with Lin Yoriichi before accepting his death, while Muzan Kibutsuji focused on examining the Blue Spider Lily. After learning of Akaza's death, Kokushibo wrestled with his fear of facing Yoriichi Tsugikuni and heard the name Muichiro Tokito outside his resting place.

• Hakuji voluntarily described the Infinity Castle to Lin Yoriichi, though he did not know Kokushibo's location.
• After fireworks reminded Hakuji of his promise to Koyuki, he apologized for failing to protect her and said he would await the sunlight with her.
• Muzan Kibutsuji sensed Akaza's death, then continued studying the withered Blue Spider Lily that Kokushibo had found.
• Muzan Kibutsuji sent Kokushibo away so he could examine the flower alone, and Kokushibo reflected on Akaza's death and his own reluctance to face Yoriichi Tsugikuni.
• Kokushibo heard Demon Slayer Corps swordsmen outside mention Muichiro Tokito and demons with the words 'Upper Rank' in their eyes.

After hearing that Kyojuro Rengoku had slain Upper Rank Two, Shinjuro Rengoku dismissed the news and went out to buy more sake. Senjuro Rengoku welcomed Mr. Yoriichi into the family home, and Shinjuro returned to find his sake flask shattered at the doorway.

• A Kasugai Crow announced that Kyojuro Rengoku and Mr. Yoriichi had slain Upper Rank Two, and Shinjuro Rengoku angrily threw a stopper at it.
• Shinjuro dismissed Kyojuro’s achievement, recalled his belief that only the swordsman from the past could defeat the Demon King, and left to buy sake.
• Senjuro Rengoku remembered how his father had reacted when Kyojuro described Mr. Yoriichi and wished Mr. Yoriichi could speak with him.
• Senjuro opened the door to find Mr. Yoriichi waiting and invited him inside.
• Shinjuro returned home with a sake flask, and it slipped from his hand and shattered as he opened the door.

Lin Yoriichi visited Shinjuro Rengoku at Kagaya Ubuyashiki’s request and helped him regain his resolve, then received a letter from Miss Tamayo about new discoveries in his blood. After Gyomei Himejima petted Chachamaru, he told Lin Yoriichi that Muichiro Tokito felt as though someone was watching him.

• Lin Yoriichi visited Shinjuro Rengoku and discussed the Flame Hashira's Book, Kyojuro Rengoku's talent, and Kagaya Ubuyashiki's request for him to guard the Mansion.
• Senjuro Rengoku overheard Shinjuro praise Kyojuro, and later saw his father ask for a razor and declare that he would stop wallowing.
• Lin Yoriichi received a letter from Miss Tamayo asking him to visit because she had made new discoveries while studying his blood.
• Gyomei Himejima approached Lin Yoriichi and happily petted Chachamaru, while Lin Yoriichi watched him become emotional.
• Gyomei Himejima revealed that Muichiro Tokito had recently felt as though he was being watched.

Lin Yoriichi concluded that Upper Rank One, Kokushibo, had been watching Muichiro Tokito and arranged for Hashira to protect him. He agreed to stay with Muichiro after visiting a special friend, while Mitsuri Kanroji and Obanai Iguro accepted the assignment.

• Lin Yoriichi questioned Muichiro Tokito about feeling watched and concluded that Kokushibo was likely responsible.
• Gyomei Himejima worried that Kokushibo might endanger Muichiro Tokito, then reasoned that several Hashira could protect him.
• Lin Yoriichi promised to stay beside Muichiro Tokito after visiting a special friend, and Gyomei Himejima offered to contact Sanemi Shinazugawa.
• Lin Yoriichi asked Mitsuri Kanroji and Obanai Iguro to help protect Muichiro Tokito, and both agreed.
• Lin Yoriichi mentioned sakura mochi to Mitsuri Kanroji and told Obanai Iguro that Mitsuri would also help; both replied with an exclamation mark.

Lin Yoriichi visited Yushiro, whose hair loss from working to crack the Infinity Castle had worsened, and reassured him by praising his bond with Miss Tamayo. Inside their residence, Miss Tamayo suddenly went berserk, and after Lin Yoriichi knocked her unconscious, Yushiro began losing consciousness too.

• Lin Yoriichi found Yushiro completely bald beneath his headscarf and thanked him for working to crack the Infinity Castle.
• Lin Yoriichi reassured Yushiro that Miss Tamayo appreciated his efforts and that he had grown stronger, lifting Yushiro's spirits.
• A crash sounded inside the residence, and Yushiro found Miss Tamayo trembling beside her toppled laboratory bench.
• Miss Tamayo transformed into a ferocious state and began to raise her sharpened nails toward her arm.
• Lin Yoriichi struck Miss Tamayo on the back of the neck with his scabbard, knocking her down.
• Yushiro realized his consciousness was becoming hazy as well.

Lin Yoriichi learned that Lady Tamayo’s second-generation drug could send demons into a berserk frenzy while still easing the Demon Slayer Mark’s side effects in humans. After considering whether dreams could let him communicate with Yoriichi Tsugikuni, he asked Lady Tamayo how to induce specific dreams and enter someone else’s, and she nodded as if she knew a way.

• Yushiro woke to find Lady Tamayo apologizing for an accident involving her drug, and she explained that she had been researching it with Lin Yoriichi’s blood.
• Lady Tamayo explained that the second-generation drug could still ease the Hashira’s Demon Slayer Mark side effects but made demons lose their reason and attack wildly.
• Lin Yoriichi considered his stalled restoration rate and wondered whether dreams could let him speak with Yoriichi Tsugikuni.
• Lin Yoriichi recalled that Tanjiro and possibly the Rengoku family or Kokushibo might dream of Yoriichi Tsugikuni, and wondered if he could enter those dreams.
• Lin Yoriichi asked Lady Tamayo whether someone could be made to have a specific dream and whether he could enter another person’s dream, and she nodded affirmatively.