Chapter Summaries

Kyojuro kept Akaza occupied with his Bright Red Nichirin Sword while Tanjiro and the others searched the wreckage for Chinatsu. Chinatsu emerged transformed into a powerful new form, ready to face Akaza again.

• Kyojuro used his Flame Breathing forms against Akaza, who lamented that Kyojuro had not become a demon and continued attacking.
• Akaza told Kyojuro that Chinatsu could not have survived his Annihilation Style and Final Style, but Kyojuro insisted she would recover.
• Tanjiro rushed toward the wreckage to find Chinatsu, and Inosuke used Beast Breathing, Seventh Form: Spatial Awareness to search for her.
• Chinatsu burst out from beneath the wreckage in a transformed, taller form with blood-red eyes.
• Chinatsu gripped her Nichirin Blade until it became bright red again and faced Akaza, ready to fight.

Chinatsu unleashed a demonic power and battled Akaza, shrugging off his attacks while her Bright Red Nichirin Sword inflicted severe damage. Akaza overcame his hesitation and launched his strongest attack yet as Chinatsu charged toward him.

• Chinatsu transformed, revealing blood-red eyes and a powerful presence that unsettled Akaza.
• Akaza charged Chinatsu and landed a heavy punch, but she ignored the wound and severed his left arm with her Bright Red Nichirin Sword.
• Chinatsu's wound rapidly healed, and she attacked Akaza with Hinokami Kagura: Dance, forcing him to retreat.
• Akaza resolved that he could not lose, briefly glimpsed a young woman in his memories, and unleashed Destructive Death: Final Form-Blue Silver Chaotic Afterglow at Chinatsu.

Chinatsu decapitated Akaza with her Bright Red Nichirin Sword, but his body continued fighting until Koyuki reached him and broke his resolve. As Akaza recovered his sealed memories, he remembered the losses that had driven him to seek strength, and stood frozen.

• Akaza charged Chinatsu, but Koyuki's influence made him lose focus.
• Chinatsu used Hinokami Kagura: Dance to sever Akaza's head with her Bright Red Nichirin Sword.
• Akaza's headless body prepared to attack again until Koyuki appeared and begged him to stop.
• Akaza's memories returned, revealing how his father died, how Keizo and Koyuki became his family, and how a rival dojo poisoned them.
• Hakuji killed the rival dojo in grief, then Muzan turned him into a demon and erased his human memories.
• Akaza stood frozen as he remembered why he had once sought strength.

Akaza remembered his past and chose to die as Hakuji, reunited with Koyuki in his inner world as his body crumbled away. After the battle, Chinatsu and the others headed back toward Demon Slayer Corps Headquarters, but Chinatsu’s exhaustion overcame her and she collapsed unconscious.

• Chinatsu and Kyojuro stood by as Hakuji embraced Koyuki in his inner world, and Akaza’s body disintegrated into dust.
• Tanjiro and the others arrived, and Chinatsu encouraged them by reminding them that watching the Upper Rank battle had given them valuable experience.
• Nezuko asked Chinatsu if she was all right, and Chinatsu reassured her before being overcome by intense drowsiness.
• The group left for Demon Slayer Corps Headquarters at dawn, with Kyojuro injured and exhausted and Chinatsu pretending she was fine.
• Chinatsu stumbled over a pebble, collapsed, and fell unconscious while the others called to her.

After waking from a month-long coma at Shinobu Kocho’s home, Chinatsu reflected on the powerful combat state she had used against Akaza and tried to find a way to master it. She accidentally discovered she could shrink at will, and Tanjiro rushed off to bring Nezuko so she could see Chinatsu’s childlike form.

• Chinatsu woke after nearly a month and remembered how her strength had surged while fighting Akaza, though the transformation left her exhausted.
• Chinatsu wondered how to train for that combat state without being beaten up, while Tanjiro trained Hinokami Kagura to become strong enough to help next time.
• Tanjiro smelled that Chinatsu had awakened and raced to Shinobu Kocho’s home, where he found her sitting on the bed as a little girl.
• Chinatsu explained that she had discovered an ability to shrink and grow at will, startling Tanjiro, Shinobu Kocho, and Kanao.
• Tanjiro asked Chinatsu to stay small so he could bring Nezuko to see her, and Chinatsu agreed.

After promising Nezuko they would play again when Chinatsu shrank, Chinatsu met with Oyakata-sama, who asked whether their generation could defeat Muzan Kibutsuji. Chinatsu affirmed they would, then left without choosing a Pillar title and decided to visit the Sound Hashira while waiting for Nezuko's excitement to fade.

• Nezuko delighted in seeing Chinatsu smaller than her, but Chinatsu left after promising they would play together another time.
• Oyakata-sama summoned Chinatsu for a private chat and asked whether their generation could destroy Muzan Kibutsuji.
• Chinatsu confidently said they would defeat Muzan, and Oyakata-sama recalled that she had helped kill Upper Rank Three and create a Bright Red Nichirin Sword.
• Oyakata-sama asked Chinatsu to choose a Pillar title, leaving her flustered and undecided.
• Chinatsu returned near Shinobu Kocho's residence, avoided going back to Nezuko, and decided to visit the Sound Hashira.

Chinatsu visited Tengen Uzui and asked to learn his Musical Score technique, despite knowing little about music. Tengen agreed to teach her the fundamentals and began by tossing books for her to catch.

• Chinatsu wandered through Demon Slayer Corps Headquarters until she found Tengen Uzui's residence.
• Tengen recognized Chinatsu and challenged her claim that she had come just to visit.
• Chinatsu admitted she wanted to learn Tengen's Musical Score technique.
• Tengen warned Chinatsu that learning the technique would require studying music from the basics, but agreed to teach her when she persisted.
• Tengen led Chinatsu inside and tossed her several books about music, which she caught one by one.

Chinatsu studied music theory with Tengen Uzui for half a month and began intensive combat practice to master his Musical Score. When Tengen worried about his wives’ silence from the Entertainment District, Chinatsu offered to go with him and bring her companions along as backup.

• Chinatsu discovered that her enhanced memory let her rapidly memorize music theory and spent the day reading Tengen’s books.
• Chinatsu returned to Tengen’s home for half a month of lessons, passed his test, and began combat training to complete her Musical Score faster.
• Tengen repeatedly completed his Musical Score during their sparring, resetting Chinatsu’s progress and pushing her to keep practicing.
• Tengen told Chinatsu that his three wives had stopped sending letters from the Entertainment District, where they were investigating demons.
• Chinatsu decided to accompany Tengen to the Entertainment District with her little brother and the others, letting them fight if the demons were not too strong.

Chinatsu told Tanjiro about their upcoming mission to the Entertainment District and explained that their father had reached the Transparent World. Tanjiro wondered whether it was connected to the supreme realm, and Chinatsu summoned everyone for the new mission as Daki felt an unexplained chill.

• Chinatsu returned to the Corps mansion after agreeing with Tengen to bring younger boys to the Entertainment District.
• Tanjiro trained hard and recalled Akaza's strength and his reference to Kyojuro approaching the supreme realm.
• Tanjiro asked Chinatsu whether their father had told her about a realm, and she described Tanjuro's experience with the Transparent World.
• Tanjiro wondered if the Transparent World was related to the supreme realm, and Chinatsu said the two might be connected.
• Chinatsu told Tanjiro to gather everyone for a new mission, while Daki suddenly felt a chill in the Entertainment District.

Daki waited at Kyogoku House for the Demon Slayer Corps to take her bait while Tengen led Chinatsu, Tanjiro, Nezuko, Zenitsu, and Inosuke to the Yoshiwara Pleasure District to search for his missing wives. After they arrived, Tengen proposed infiltrating three geisha houses, but Chinatsu refused to let herself or Nezuko take part.

• Daki walked through Kyogoku House, thinking about the Demon Slayer Corps and anticipating that her bait would draw powerful targets.
• Chinatsu gathered Tanjiro and the others at Tengen's residence, and Tengen set out with them for the Yoshiwara Pleasure District.
• The group reached Yoshiwara at night, where Chinatsu stopped Inosuke and Zenitsu from leaping out of their rickshaw to gawk at the district.
• Tengen explained Yoshiwara's geisha houses and said the mission was to find his three missing wives.
• Tengen proposed infiltrating Kyogoku House, Tokito House, and Ogimoto House, but Chinatsu refused to let herself or Nezuko do the job.

Chinatsu and Tengen disguised Tanjiro, Zenitsu, and Inosuke as girls to infiltrate Yoshiwara, then attracted the attention of the Ogimoto House's madam. The madam offered to buy Inosuke, and Chinatsu asked how much she would pay.

• Chinatsu stopped Tengen from doing the boys' makeup and made up Tanjiro, Zenitsu, and Inosuke instead.
• Tengen removed his makeup and revealed his handsome face, making Zenitsu jealous and Nezuko more suspicious of his interest in Chinatsu.
• The group dressed in women's clothing and walked through Yoshiwara, drawing attention as they passed Koinatsu's oiran procession.
• The Ogimoto House's madam spotted Inosuke and offered to buy him, but Chinatsu kicked Tengen before he could give Inosuke away for free.
• Chinatsu asked the madam how much she was willing to pay for Inosuke.

Chinatsu and Tengen placed Inosuke, Tanjiro, and Zenitsu in three brothels across the Entertainment District as part of their investigation. With her role seemingly finished, Chinatsu headed out for food and bought Konpeito for Nezuko.

• Chinatsu negotiated a price with the proprietress of Ogimoto House and left Inosuke in her care.
• Chinatsu warned Tanjiro to be cautious before arranging for him to stay at Tokito House.
• Tengen placed Zenitsu in Kyogoku House, leaving the three key brothels covered.
• Tengen remained worried about his missing wives, while Chinatsu decided not to interfere in the fight against Upper Rank Six.
• Chinatsu spotted a stall selling Nezuko's favorite Konpeito and asked for a large portion.

Tengen and Chinatsu discussed the possibility that an Upper Rank demon was hiding in Yoshiwara, while Tanjiro, Zenitsu, and Inosuke continued investigating Tengen’s missing wives undercover. Zenitsu discovered Daki at Kyogoku House and attacked her, alerting Tanjiro and Inosuke.

• Tengen returned from searching Yoshiwara and warned Chinatsu that the hidden demon might be an Upper Rank.
• Chinatsu urged Tengen to trust Tanjiro, Zenitsu, and Inosuke to handle their undercover mission.
• Tanjiro and the others gathered reports that Hinatsuru, Makio, and Suma had disappeared from their respective brothels.
• Zenitsu sensed that a woman passing him at Kyogoku House was a demon, and Daki recognized him as a Demon Slayer.
• Daki kicked Zenitsu into a wall, but he stayed standing and used Thunder Breathing, First Form: Thunderclap and Flash, Sixfold Strike to carry her out of the brothel.
• Tanjiro and Inosuke heard the commotion and realized that Zenitsu had engaged the demon.

Zenitsu dragged Daki out of the brothel and fought her without his Nichirin Blade until Tanjiro arrived. Tanjiro’s Hinokami Kagura cut through Daki’s sashes, and he launched himself at her as the battle continued.

• Zenitsu used Thunder Breathing to pull Daki out of the brothel and punched her before she knocked him toward the ground.
• Daki attacked Zenitsu with her sashes, wounding him as he dodged and landed safely.
• Tanjiro arrived, told Zenitsu to retrieve his Nichirin Blade, and faced Daki with his own sword.
• Daki mistook Tanjiro for a Pillar, and he switched to Hinokami Kagura to meet her attack.
• Tanjiro’s Blazing Sun severed Daki’s sashes, causing her intense pain, and he charged at her.

Tanjiro drove Daki back with Hinokami Kagura, and Inosuke joined the fight. Daki learned that Chinatsu and Tengen had found her hidden storehouse of captured humans and destroyed her sash clone, leaving her stunned as Tanjiro and Inosuke attacked.

• Tanjiro cut through Daki’s sashes and forced her to retreat, though she transformed her neck into a sash to survive his strike.
• Tanjiro used Hinokami Kagura: Blazing Sun Red Mirror, driving Daki farther away until their fight reached a stalemate.
• Inosuke arrived to help Tanjiro and insulted Daki, provoking her as she refused the voice of her big brother’s offer to take over.
• Daki told her big brother that she would outlast the humans and regain strength by eating captives stored beneath the Entertainment District.
• Chinatsu and Tengen found Daki’s Underground Cave and destroyed the sash clone guarding the captured women.
• Daki realized two stronger Pillars had appeared, but Tanjiro and Inosuke charged her with their breathing techniques.

Tengen, Chinatsu, and the rescued wives returned from the underground cave as Tanjiro and Inosuke beheaded Daki. Daki called for her brother, and a second demon bearing the markings of Upper Rank Six appeared to protect her.

• Tengen rescued Makio and Suma, then told them that Hinatsuru was safe outside and introduced Chinatsu as the Demon Slayer Corps' newest Pillar.
• Tengen, Makio, Suma, and Chinatsu emerged from the cave and saw Inosuke destroy Daki's sashes while Tanjiro cut off her head.
• Tanjiro wondered why Daki had been so easy to behead, while Daki cried out for her brother.
• A scrawny, green-haired man blocked Tanjiro's next strike with a Blood Scythe and reattached Daki's head.
• The man comforted Daki, promised revenge, and revealed the same Upper Rank Six markings in his eyes.

Chinatsu watched Tanjiro and Inosuke fight Gyutaro and Daki, letting Tanjiro face Gyutaro as a test of his growth. When Gyutaro poisoned Tanjiro and the strain threatened to awaken his demon slayer mark, Chinatsu changed plans and prepared to join Tengen in ending the fight quickly.

• Gyutaro emerged from Daki and attacked Tanjiro, while Zenitsu joined Inosuke against Daki as Chinatsu and Tengen watched.
• Tanjiro struggled to match Gyutaro's speed but grew more capable as he fought and unleashed Hinokami Kagura techniques.
• Gyutaro used Blood Demon Art: Flying Blood Scythes, and a poisoned blood blade grazed Tanjiro's shoulder.
• Tanjiro resisted the poison and kept fighting, but Chinatsu realized his rising temperature and heart rate could trigger his demon slayer mark.
• Chinatsu picked up Nezuko and told Tengen they would intervene and take out the demons quickly, and Tengen agreed.

Nezuko rescued Tanjiro by knocking Gyutaro away and burning the poison from his body. Chinatsu and Tengen arrived, and the three prepared to attack Gyutaro together, with Tanjiro wielding a blade empowered by Nezuko’s Exploding Blood.

• Nezuko flew in and punched Gyutaro, sending him crashing away.
• Nezuko used Exploding Blood to remove Gyutaro’s poison from Tanjiro, who recovered and prepared to fight again.
• Chinatsu and Tengen arrived and joined Tanjiro, forming a three-person assault against Gyutaro.
• Tengen and Chinatsu turned their Nichirin Blades bright red, while Nezuko empowered Tanjiro’s blade with her blood and Exploding Blood.
• Gyutaro grew enraged and jealous as the fighters faced him, and Chinatsu prepared to finish the battle quickly.

Chinatsu, Tengen, and Tanjiro defeated Gyutaro, while Inosuke and Zenitsu beheaded Daki. As the siblings argued over their defeat, Gyutaro remembered that his sister had once been called Ume.

• Gyutaro charged at Chinatsu, Tengen, and Tanjiro, and their Bright Red Nichirin Swords struck him from three directions.
• Tanjiro cut off Gyutaro's head with his Exploding Blood blade, setting Gyutaro ablaze.
• Daki attacked Inosuke and Zenitsu in a frenzy, but Inosuke created an opening for Zenitsu to sever her head with Godspeed.
• Tanjiro became emotional at having helped defeat an Upper Rank demon, and Chinatsu patted his head.
• Gyutaro and Daki blamed and insulted each other until Gyutaro recalled his sister's former name, Ume.

Gyutaro and Ume remembered their human lives before crumbling into dust, while Chinatsu and the others prepared to leave the Entertainment District. They rescued the girls Daki had abducted, and the incident later became a famous urban legend.

• Gyutaro and Ume recalled their impoverished childhood, Ume’s burning, and how Doma turned them into demons before they both disintegrated.
• Chinatsu reflected on the demons’ crimes and kept her focus on the threat of the Demon King in the Infinity Castle.
• Chinatsu returned the money pouches to Tanjiro and Inosuke, then remembered the girls trapped in Daki’s Underground Cave.
• Chinatsu and the others retrieved the abducted girls and left them safely along the streets of the Entertainment District.
• The police and Medical Team found the girls alive, and the events became a famous urban legend.