Chapter Summaries

Bai Yue recognized that he had arrived in the world of Demon Slayer: Kimetsu no Yaiba and learned that Kanae Kocho was a member of the Demon Slayer Corps. After Kanae left to confront Upper Rank Two Doma, she fought him alone and waited for reinforcements.

• Bai Yue inferred that the world was set in the Taisho Era after seeing a train, then suffered a sudden loss of consciousness caused by a connection problem.
• Bai Yue asked Kanae Kocho if he could join the Demon Slayer Corps, but she angrily warned him not to join on a whim.
• A crow reported that Upper Rank Doma had been spotted, and Kanae left Bai Yue at a snack shop to respond.
• Kanae found Doma collecting severed heads and fighting another Slayer, then attacked him after witnessing his cruelty toward women.
• Kanae exchanged attacks with Doma, sustained an arm wound, and continued fighting while waiting for her companions to arrive.

Mr. Bai Yue arrived in time to save Kanae Kocho and overwhelmed Doma with a blazing Crimson Blade, but the power left his condition beyond saving. After Doma fled and Kanae was rescued, she realized the terrible cost of Mr. Bai Yue’s strength.

• Kanae Kocho nearly lost to Doma until Mr. Bai Yue arrived, took her sword, and drove Doma back with a pitchfork and rapid strikes.
• Mr. Bai Yue repeatedly cut apart Doma’s regenerating body, then split his ice Bodhisattva and scorched Doma’s halves with his Crimson Blade.
• Doma divided himself to flee and attacked Kanae Kocho with ice petals and spears, but Mr. Bai Yue’s heat melted the petals and forced the spears to miss.
• Mr. Bai Yue caught the injured Kanae Kocho, and she noticed her Nichirin Blade had become a Crimson Blade and that his condition was beyond saving.

Tsuki died in Kanae Kocho’s arms as dawn broke, promising they would meet again after reincarnation. A newly generated character then arrived in the mountains, where he killed a bear before encountering Nezuko and her family; after the bear tore him apart, he regenerated in front of them.

• Tsuki comforted Kanae Kocho and told her that her parents had watched over her and that they would meet again after reincarnating.
• Tsuki asked Kanae Kocho to allow him to be unfaithful in his next life, and she agreed before he died at sunrise.
• A newly generated character killed a bear, used its hide for warmth, and headed down the mountain.
• Nezuko watched her younger siblings play outside while her mother worked and her older brother was away selling firewood.
• A bear leaped from the roof and tore the approaching man apart, but his body reassembled as Nezuko and her siblings watched.

Bai Yue defeated Muzan by clearing the clouds and exposing him to sunlight, then discovered that Nezuko had begun changing into an Oni. After giving Nezuko his blood, he found she had become an Oni who could withstand sunlight and seemed to have no need to eat people.

• Bai Yue disrupted the airflow to clear the clouds, and sunlight destroyed Muzan while Nezuko watched.
• Nezuko slipped in Muzan’s blood, and Bai Yue realized she might have been infected despite finding no visible wound.
• Bai Yue asked Nezuko to help retrieve a bear, and she confessed that she feared becoming an Oni and begged him to kill her.
• Nezuko discovered that the wound on her foot had healed, while Bai Yue suspected his blood had resisted Muzan’s infection.
• Bai Yue cut his hand and made Nezuko drink his blood, after which he told her she had become an Oni who was not afraid of sunlight.
• Nezuko noticed her fangs but no longer felt a craving for human flesh, while Bai Yue remained unsure whether the change would last.

Nezuko left home with Bai Yue and fought him when she found his blood beside a corpse, only to learn he had staged the scene to test her. She then helped Bai Yue restrain an oni who had eaten at least twenty-one people, and his blood caused the oni unbearable pain when it touched his wounds.

• Nezuko left her family and followed Bai Yue, fearing she might someday hurt them as an oni.
• Nezuko smelled Bai Yue's blood near a corpse, attacked the disguised figure, and discovered that Bai Yue had staged the scene to test her.
• Nezuko sensed another oni nearby and alerted Bai Yue, who found it suffering after it had eaten his corpse and blood.
• Bai Yue told Nezuko that the oni had eaten at least twenty-one people, and she attacked it under his instructions.
• Bai Yue splashed his blood onto the injured oni, which screamed in agony when the blood touched its wounds.

Bai Yue tested Nezuko’s unusual appetite and recovery, then considered seeking a demon doctor for help preserving blood. Meanwhile, Shinobu tracked a trail linked to Bai Yue and reached a hot spring, where she discovered someone nearby.

• Bai Yue tested Nezuko’s reaction to his blood and confirmed that it suppressed demons’ regeneration, while Nezuko could tolerate his blood without losing control.
• Nezuko ate a large meal and drank Bai Yue’s blood, allowing him to estimate how much she needed to recover from battle.
• Bai Yue recalled a doctor demon who had broken with Muzan and considered searching for her to find a way to preserve blood.
• Shinobu followed a demon trail, found a corpse with unusually clean blood that resisted and decomposed her poison, and collected a sample.
• Shinobu tracked the blood’s scent through the mountains, then set poison warnings around a hot spring before entering it.
• Shinobu moved through the hot spring’s mist and realized someone was nearby.

Shinobu mistook Bai Yue for a demon impersonating the man who had saved her sister, but he proved he was human and knew intimate details from her past. Unable to defeat him or affect him with poison, she accepted his identity for now and ended up sharing the hot spring with him.

• Shinobu found Bai Yue at the hot spring and pinned him down, believing his resemblance to her sister's deceased benefactor demanded an interrogation.
• Shinobu recalled how the benefactor had died after helping Kanae fight Doma, and suspected Bai Yue was either his reincarnation or a demon using his memories.
• Nezuko appeared, and Shinobu concluded that both she and Bai Yue were demons, but sunlight revealed that Bai Yue was human and Nezuko was a demon unaffected by the sun.
• Bai Yue removed Shinobu's paralyzing needle and demonstrated his knowledge of her childhood, confirming that he had saved Kanae and could see souls.
• Shinobu attacked Bai Yue after he began revealing an embarrassing childhood secret, but he effortlessly flipped her onto her back and restrained her.
• Shinobu accepted Bai Yue's identity because he knew her family's secrets and she could neither defeat him nor poison him, then soaked in the hot spring with him.

Shinobu learned from Nezuko how Bai Yue’s blood had transformed her into a demon immune to sunlight and uninterested in eating people, then privately informed her sister that she had seen his reincarnation. Over three days, Shinobu followed Bai Yue as he repeatedly found disguised demons through the spirits surrounding them, and the chapter ended with her testing a new poison on one while Nezuko hid from her experiments.

• Shinobu questioned Nezuko about becoming a demon and learned she had encountered Muzan Kibutsuji before drinking Bai Yue’s blood, which made her immune to sunlight and unwilling to eat people.
• Shinobu tested Nezuko’s reaction to her blood and learned that Bai Yue’s blood poisoned demons and might have other unusual effects.
• Shinobu teased Bai Yue at dinner, while Kanao Tsuyuri saw a line in Shinobu’s letter to Kanae saying, “I saw his reincarnation...”
• Bai Yue explained how the spirits surrounding demons helped him locate them, then exposed a demon disguised as a storage cabinet and pinned it with his blade.
• Shinobu used the disguised demon as a test subject for her new poison and watched Nezuko hide behind Bai Yue to avoid more experiments.

Shinobu and Bai Yue tracked a seemingly cowardly demon and discovered it was Hantengu, Upper Rank Four. Bai Yue slashed Hantengu, whose wounds froze into blood-red ice, but the demon rapidly regenerated and split into countless frozen chunks.

• Shinobu examined Nezuko and Bai Yue, then sensed a powerful demon approaching the house.
• Bai Yue guided Shinobu to spot a demon sneaking through the shadows and warned that it had killed at least five hundred people.
• Shinobu followed the demon to an open area, where it feigned terror and begged for its life.
• Bai Yue identified the demon as Hantengu, Upper Rank Four, despite Shinobu seeing no rank markings in its eyes.
• Hantengu tried to flee after touching Shinobu's poison, but Bai Yue struck it with a cross-shaped slash that froze its wounds.
• Hantengu regenerated into a huge lump of flesh, which Bai Yue sliced into more than a hundred chunks that were covered in red frost.

Shinobu watched Bai Yue battle Hantengu’s split demons as they combined into a more powerful Hatred demon. Bai Yue struck Hantengu’s hidden weakness, and Shinobu and Nezuko helped bring down Hatred, but falling debris threatened Bai Yue.

• Hantengu split into Joy, Anger, Sorrow, and Pleasure, and Bai Yue fought off their attacks while Shinobu observed their abilities.
• Bai Yue wounded Pleasure with Blood Freezing, but Anger absorbed Pleasure, and Sorrow revived before being absorbed along with Joy.
• Anger transformed into Hatred, summoned five Wood Dragons, and pursued Bai Yue when he sprinted toward the forest.
• Bai Yue hurled his Nichirin Blade into the forest and struck Hantengu’s hidden weakness, disrupting Hatred and the Wood Dragons.
• Nezuko kicked a Wood Dragon while Shinobu poisoned Hatred’s head, causing the demon and its dragons to collapse.
• Shinobu rushed toward Bai Yue as fragments of the Wood Dragons crashed around him.

After Upper Rank Four was killed, Shinobu watched Bai Yue die from his abnormal condition and buried his body, then discovered him alive and apparently restored. She examined him while pinning him down, but their close position brought back memories of their first meeting.

• Shinobu confirmed that Upper Rank Four had perished and found Bai Yue's fever, rapid heartbeat, and deteriorating blood and organs beyond her ability to save.
• Bai Yue collapsed and died after reassuring Shinobu that his return would not take another four years.
• Shinobu drew blood from Bai Yue's heart, buried his body, and cleaned herself so sleeping Nezuko would not notice what had happened.
• A naked Bai Yue suddenly appeared beside Nezuko, and Shinobu tackled him and pierced his palm with a poison dart.
• Shinobu found Bai Yue alive with normal vital signs and examined him closely as he asked whether she needed to confirm his identity too.

Muzan Kibutsuji learned that Hantengu had been killed by a powerful man and ordered the Upper Ranks summoned. At Demon Slayer Corps Headquarters, Kagaya Ubuyashiki revealed that Shinobu was safe but that her unknown ally could not join the Corps, and sent Kanae Kocho and Mitsuri Kanroji to meet her in case demons pursued her.

• Bai Yue kissed Shinobu after she lost her balance and fell against him.
• Muzan Kibutsuji sensed Hantengu's death, suspected the killer was the fur-clad man who had once wounded him, and resolved to confirm the man's death.
• Muzan sensed that a female demon had appeared at Hantengu's location and wondered whether she was Tamayo before deciding to summon the Upper Ranks.
• Kagaya Ubuyashiki told the assembled Hashira that Upper Rank Four, Hantengu, had been killed and assured Kanae Kocho that Shinobu was unharmed.
• Kagaya explained that an unknown man had killed Hantengu with Shinobu's Nichirin Blade but could not join the Corps, then ordered Kanae and Mitsuri Kanroji to meet Shinobu in case she was pursued.

Shinobu traveled with him and Nezuko to Tokyo Prefecture to seek out Tamayo, an Oni doctor who might know how to turn Oni back into humans. Along the way, he explained that his death-triggered regeneration relied on a cultivated spare body and space-teleportation technology, then asked whether Tamayo was interested in the secret of his body.

• Shinobu worried about facing Kanae after learning that Kanae had permitted him to be unfaithful, while a Corps crow carried news of his apparent death to Headquarters.
• Shinobu and her companions headed to Tokyo Prefecture instead of going straight to Corps Headquarters, hoping to find the Oni doctor Tamayo.
• He told Shinobu that he had learned about Tamayo from a manga called Demon Slayer: Kimetsu no Yaiba.
• Shinobu questioned how he could return from death despite having no visible Oni traits, and he described his regeneration as growing a body from a prepared spare body.
• He explained that he used space-teleportation technology to store the spare body, then asked whether Tamayo wanted to learn the secret of his body.

Bai Yue met Tamayo and agreed to teach her medical research that might turn oni back into humans, on the condition that she become his exclusive something. Tamayo and Bai Yue then discussed medicine in depth while Shinobu struggled to follow, and the chapter ended when Tamayo noticed movement beside her.

• Bai Yue recognized Tamayo and invited her to talk at her residence with Shinobu and the oni girl.
• Tamayo revealed that she knew Shinobu’s sister, Kanae, and knelt to ask Bai Yue to teach her how to turn oni back into humans.
• Bai Yue agreed, but began to state a condition: Tamayo had to become his exclusive something.
• Tamayo brought out her medical notes and discussed human anatomy and treatment with Bai Yue while Shinobu listened.
• Bai Yue and Tamayo discussed surgery, organ transplants, the immune system, blood transfusions, and cancer cells, and Tamayo noticed movement beside her.

Bai Yue learned from Tamayo that Muzan Kibutsuji had kept the Oni population small because of his arrogance and reluctance to share his power. He agreed to let Tamayo study his and Nezuko’s blood, and the chapter ended with news that a Lower Rank Demon’s trail had been found as a possible test subject.

• Tamayo reviewed the medical notes from her discussion with Bai Yue while Shinobu and Nezuko slept nearby.
• Tamayo explained that Oni could infect humans only with Muzan Kibutsuji’s permission, and that his arrogance had kept him from creating more Oni.
• Bai Yue agreed to provide blood for Tamayo’s research and explained that his DNA was locked, making his blood dangerous to Oni.
• Shinobu stopped Tamayo from experimenting on herself, and her crow reported that a Lower Rank Demon’s trail had been discovered.

Bai Yue told Tamayo that her child had appeared one last time before being drawn back to Heaven and might be reincarnated, while the group approached Mount Natagumo to capture demons and conduct experiments. On the mountain, Rui prepared his forced demon family to confront the intruders, revealing that their apparent family bond was maintained through fear.

• Bai Yue told Tamayo that her child had visited on the day Tamayo delivered another woman's baby, then returned to Heaven and would likely be reincarnated after roughly a century.
• Tamayo joined Bai Yue's group as they approached Mount Natagumo, where they planned to capture demons and experiment on them.
• Rui sensed intruders entering his territory after they destroyed his traps and surveillance spiders, and he ordered his household to welcome them.
• Rui's supposed family agreed to fight, while the woman playing his mother suggested they flee and was met with his cold stare.
• The narration revealed that Rui's household members were unrelated demons forced to play family roles, and that Rui punished or killed them when they failed.

Mitsuri Kanroji and Kanae Kocho encountered spider demons and controlled villagers in the forest before a young man and Shinobu joined the fight. After he saved Mitsuri from spider threads, she blushed and wondered if she had fallen in love.

• Mitsuri Kanroji and Kanae Kocho found dead Demon Slayer Corps members being controlled by spider threads and discovered spiders, an enormous web, and armed villagers surrounding them.
• A black iron ball poisoned and melted the human-faced spider demon, while a hulking spider demon attacked Mitsuri Kanroji.
• Mitsuri Kanroji struck the hulking demon away, but a young man stopped its charge, pinned it down, and used another iron ball to weaken it.
• Shinobu arrived with butterflies and warned Mitsuri Kanroji not to attack Nezuko, who was fighting a demon on the Corps' side.
• Mitsuri Kanroji slipped, and the young man caught her while severing the spider threads that had threatened to tear her apart; she blushed in his arms.

Kanae Kocho decapitated Lower Rank Five but hesitated after seeing his confusion, leaving herself vulnerable to his counterattack. Bai Yue shielded her and was gravely wounded, while Shinobu and Tamayo immobilized the demon; the chapter ended with Mitsuri pleading for Bai Yue to survive as Shinobu prepared to collect his blood.

• Kanae Kocho used Flower Breathing to sever Lower Rank Five's head and body.
• Kanae sympathized with the demon and looked away, allowing him to reassemble and launch a web of lethal threads at her.
• Bai Yue appeared between Kanae and the threads, taking the attack and suffering severe wounds.
• Tamayo, Shinobu, Kanae, and Nezuko pinned Lower Rank Five's body parts with spikes.
• Mitsuri Kanroji urged Bai Yue not to die, while Shinobu stopped Kanae from treating him and called for Tamayo to preserve his blood.

After Mitsuri Kanroji accidentally killed Bai Yue, Shinobu and the others witnessed his revival and learned more about the exceptional nature of his body. Kanae reunited with him, and he brought up his old request to be unfaithful, prompting her to remind him what he had asked permission for.

• Mitsuri Kanroji slipped and fatally struck Bai Yue, splitting open his neck wound.
• Shinobu reassured Kanae Kocho that Bai Yue would recover, and Tamayo examined his body while the sisters helped.
• A luminous figure rose from the corpse and reassembled into Bai Yue; Mitsuri checked that he was alive and had a shadow.
• Mitsuri asked whether the Demon Slayer Corps could use the same medical technology, but Tamayo explained that Bai Yue's body was an extraordinary mystery.
• Shinobu sent Kanae to speak with Bai Yue, who asked whether she remembered his request to be unfaithful; Kanae recalled it with a teasing smile.

Bai Yue told the gathered women that he wanted all of them, while the Twelve Kizuki assembled in the Infinity Castle to hear Muzan Kibutsuji’s report about Hantengu’s killer. Muzan recognized the killer as a dangerous man Doma had met four years earlier and resolved to eliminate him; Rui endured being dismembered and regenerated.

• Bai Yue rejected the women’s guesses and said he wanted them all.
• Kokushibo, Doma, Gyokko, Akaza, Upper Rank Six, and the Lower Ranks gathered in the Infinity Castle as Nakime played her biwa.
• Muzan Kibutsuji announced that Hantengu had been killed and that a Lower Rank Demon had been captured in connection with the killer.
• Doma revealed that he had encountered the killer four years earlier and hidden the encounter from Muzan.
• Muzan connected the killer to the man in the bear pelt and ordered that he be eliminated.
• Rui was dismembered and regenerated, enduring the pain.