Chapter Summaries

After the ball, Roa shared a meal with Ghislaine and Eris, gave Eris a Red Dragon Magic Stone for her birthday, and prompted Ghislaine to give her a protective ring. Eris got tipsy and insisted on staying with Roa, so he carried her to bed.

• Roa invited Ghislaine to eat privately, and Eris joined them after the ball.
• Eris asked for her present, and Roa gave her a crimson Magic Stone taken from the Red Dragon.
• Ghislaine apologized for not preparing a gift, then gave Eris her people's worn wooden warding ring.
• After eating and drinking, Ghislaine left Roa alone with a tipsy Eris.
• Eris insisted on staying the night, and Roa carried her to bed.

On her birthday, Eris asked Roa to stay with her, and Roa realized he was attracted to her. The next morning, Roa told Eris he would leave on a long trip the following day and entrusted her to Rudeus.

• Roa carried Eris to bed, and she asked him to stay with her for her birthday; he agreed and watched over her as she slept.
• Roa considered Eris's feelings and admitted to himself that he was somewhat attracted to her.
• The next morning, Roa told Eris he would leave on a long trip and asked her to keep working toward becoming stronger with Rudeus's help.
• Eris found Rudeus listening outside the door, scolded him, and left; Roa then confronted Rudeus, who apologized for spying.
• Roa told Rudeus he was leaving the next day and leaving Eris in his care, and Rudeus protested that Eris was too much for him to handle.

Roa revealed his Dragon Transformation to Rudeus and urged him to become strong enough to protect their family before leaving for another world. He crossed over in his true body, then woke amid festive decorations and a bustling crowd.

• Roa admitted that he had disguised himself as the black-robed man and showed Rudeus his Dragon Transformation, then reassured him that he was still his big brother.
• Roa told Rudeus he needed to grow strong enough to protect their family, and Rudeus promised to work hard.
• After several uneventful days, Roa left early and used the system to locate a new world, adjust its timeline, and choose true-body crossing.
• Roa chose the role of a child from a wealthy family, but a force struck him unconscious before he could complete the selection.
• Roa woke surrounded by festive decorations in a bustling place.

Roa discovered that he had transmigrated into the Taisho era with his strength temporarily restricted and was being married into a family of demons. When the bride and her maid revealed their plans to eat him and his household, Roa struck first and beheaded the maid.

• Roa tested his weakened magic and body, then learned from a servant that it was his wedding day.
• The servant explained that Roa’s father had arranged his marriage alliance, and Roa was led to meet his veiled bride.
• Roa sensed that the bride’s side consisted of demons and recognized that he was in the world of Demon Slayer.
• In the bedroom, the maid Xiao Die revealed her intent to eat Roa alongside the bride, who claimed first claim to him.
• Roa drew a hidden fruit knife and beheaded Xiao Die with a sudden strike.

Roa fought four demons who attacked him in a house and discovered that breathing deeply strengthened his body. He incapacitated them, tied their heads beneath a tree, and left them struggling as he continued to overpower them.

• Roa decapitated Xiao Die and confronted the red-clad demoness, who revealed that Muzan Kibutsuji had ordered them to kill everyone that night.
• The demoness attacked Roa, but he kicked her through a wall and sensed that breathing in oxygen was increasing his strength.
• Roa pinned a servant with a thrown fruit knife and told the people in the house to flee.
• A hidden demon attacked Roa, but he seized her and beat her unconscious before overpowering Hong Nü and another demon.
• Roa used the fruit knife to slice apart the four demons, tied their heads together beneath a tree, and bound their headless bodies so they could not escape.

Roa learned that Muzan Kibutsuji had killed his family and sent four demons to attack him, then left his home at dawn to avoid a confrontation with Muzan. As he headed toward a village, he recalled how demons and the Demon Slayer Corps were organized.

• Roa questioned Xiao Die and learned that Muzan Kibutsuji had eaten his family and ordered the demons to look after his descendants.
• Roa tied the four demons to a tree and waited until sunlight turned them to ash.
• Roa gathered valuables from the house and set out, refusing to take a servant with him.
• A Demon Slayer Corps squad arrived and found the wreckage and a chipped fruit knife.
• As he walked, Roa recalled the Demon Slayer Corps, its ranks and Hashira, and the methods used to kill demons.
• Roa reached a village, where the villagers stared at him strangely.

Roa stopped at a restaurant and ate bowl after bowl of ramen, where the owner arranged for him to meet Kanroji Mitsuri. Mitsuri fell for Roa at first sight, and the chapter ended with her asking to sit beside him.

• Roa ordered fifteen bowls of ramen, and the owner decided to introduce him to Kanroji Mitsuri, who was seeking a husband.
• Roa quickly finished his first two bowls and continued eating while the restaurant staff prepared more.
• Kanroji Mitsuri arrived upset after another rejection, and the owner persuaded her to meet Roa by pointing out how much he ate.
• The owner introduced Kanroji Mitsuri to Roa, and Mitsuri fell in love when she saw his face.
• Roa introduced himself and invited Kanroji Mitsuri to sit on the bench opposite him.

Roa shared a meal with Kanroji Mitsuri, reassured her about her unusual appetite and strength, and found they both enjoyed sakura mochi. Mitsuri became captivated by Roa, but she lost her nerve before she could tell him what she wanted to say.

• Roa offered to treat Mitsuri to food, and she shyly ordered ten sakura mochi before asking for forty and then a hundred after he encouraged her to eat freely.
• Mitsuri cried as she told Roa that others had mocked her appetite and strength, and Roa urged her to be herself and ignore their opinions.
• Mitsuri tried to speak to Roa, but a server's arrival startled her, and she apologized before eating the sakura mochi while staring at him.
• Roa asked to try a sakura mochi, and Mitsuri grabbed his hand to share one before sheepishly releasing him when he tried to pull away.
• The narration explained Mitsuri's extraordinary strength and appetite came from her unusual physique, while she remained a hopeless romantic.

Roa arm-wrestled Kanroji Mitsuri and narrowly lost after she unleashed her overwhelming strength. News of Roa’s demon-slaying reached Ubuyashiki Kagaya and Kuwajima Jigoro, who both decided to seek him out.

• Roa challenged Kanroji Mitsuri to an arm-wrestling contest, and the middle-aged man agreed to referee.
• Roa and Mitsuri struggled in a close match until Mitsuri suddenly overwhelmed him and left his hand swollen.
• Ubuyashiki Kagaya heard that Roa had killed four demons without knowing Breathing techniques and told Ubuyashiki Amane they had to recruit him.
• Kuwajima Jigoro learned about Roa’s feat and ordered a servant who could recognize him to accompany him, telling someone to inform Agatsuma Zenitsu and Kaigaku that he would be away.

Roa said goodbye to Kanroji Mitsuri and set out to hunt demons, capturing a female demon in a mountain hut but unable to kill her permanently without a Nichirin Blade. After a warning about a powerful demon, he continued downhill and reached a lit temple.

• Roa declined Kanroji Mitsuri's invitation to stay with her and suggested they might meet again in the Demon Slayer Corps.
• Roa searched the town for demons, then climbed the mountain after finding none there.
• Roa encountered a female demon at a hut, beheaded and dismembered her, and discovered human remains cooking inside.
• Roa tied the demon's limbs to a tree and carried her head onward through the mountain.
• An old voice warned Roa that a powerful demon was farther down the mountain, but he continued toward a lamp-lit temple.

Roa confronted Byakuya, Lower Rank Three, and defeated him with his extraordinary speed despite lacking a Nichirin Blade. He restrained Byakuya and the female demon until daybreak, but Byakuya realized Roa had put down his sword and decided to attack.

• Roa entered Byakuya’s home after leaving the female demon’s head outside, and Byakuya introduced himself as Lower Rank Three.
• Byakuya taunted Roa for lacking a Breathing Technique and Nichirin Blade, but Roa swiftly severed his head and tore apart his body.
• Roa carried Byakuya’s head outside, retrieved the female demon’s head, and silenced both demons with threats and his sword.
• Roa hung both heads from a crooked tree, ate Sakura Mochi while waiting for daybreak, and left his sword aside.
• Byakuya used his mind to move his body toward Roa and resolved to attack while Roa was unarmed.

Roa defeated Lower Rank Three Byakuya after experimenting until he developed a rudimentary Breathing Technique, then met Flame Hashira Rengoku Kyojuro and agreed to join the Demon Slayer Corps. Rengoku offered to make Roa his Tsuguko, but Roa declined, leaving Rengoku still trying to persuade him.

• Roa pummeled Byakuya through the night, then experimented with his breathing to retain the energy needed to harm demons.
• Roa developed a passable Breathing Technique, and Byakuya and the female demon crumbled to ash in the morning sunlight.
• Roa met Rengoku Kyojuro on the mountain and told him that demons had killed many villagers, but that he had killed the demon responsible.
• Roa copied Rengoku's breathing rhythm, and Rengoku praised his quick progress and invited him to join the Demon Slayer Corps.
• Rengoku offered Roa the position of his Tsuguko, but Roa declined because he had not decided which Breathing style suited him.
• Roa revealed that he had killed Lower Rank Three without a Nichirin Blade, and Rengoku again asked him to become his Tsuguko as Roa tried to leave.

Roa agreed to join the Demon Slayer Corps if Rengoku recommended him, while Muzan learned that Lower Rank Three had been killed and questioned the Lower Ranks’ usefulness. Roa brought Rengoku to meet Mitsuri and suggested she become his Tsuguko, leaving her to consider the offer.

• Roa agreed to join the Demon Slayer Corps if Rengoku recommended him, and offered to show him where the demon had died.
• Muzan searched Lower Rank Three’s memories, saw Roa’s fast blade, and decided it was time to deal with the Lower Ranks.
• Rengoku sent a message to Oyakata-sama and accompanied Roa to a noodle shop, where Roa asked about Breathing Techniques and learned Flame Breathing.
• Roa brought Rengoku to the restaurant where Mitsuri was eating, and the three of them devoured a huge meal together.
• Roa explained that Rengoku was the Flame Hashira and proposed that Mitsuri become his Tsuguko, then asked what she thought.

Roa joined the Demon Slayer Corps with permission to act independently, while Kanroji Mitsuri became Rengoku Kyojuro’s Tsuguko. After settling in at the Rengoku residence, Roa met Kuwajima Jigoro and began a sparring match with the former Rumble Hashira.

• Kanroji Mitsuri chose to join the Demon Slayer Corps, and Rengoku Kyojuro brought her and Roa to meet Ubuyashiki Kagaya.
• Rengoku Kyojuro asked to take Kanroji Mitsuri as his Tsuguko and revealed that Roa had killed Lower Rank Three; Ubuyashiki Kagaya agreed to let Roa act freely and suggested he try Thunder Breathing under Kuwajima Jigoro.
• Ubuyashiki Kagaya arranged for Roa and Kanroji Mitsuri to stay at Rengoku Kyojuro’s home, where Rengoku Shinjuro demanded payment for their food and lodging.
• Roa paid Rengoku Kyojuro for expenses, and Rengoku Kyojuro later left to train Kanroji Mitsuri.
• Kuwajima Jigoro visited Roa and challenged him to spar; after Kuwajima called the start, he charged with Thunder Breathing’s First Form, Thunderclap and Flash.

Roa learned Thunder Breathing from Kuwajima Jigoro, created a modified sword-draw technique, and agreed to pursue the Rumble Hashira title after killing another Lower Rank demon. Unable to sleep, he left headquarters to hunt and discovered a demon hiding in a decaying house.

• Kuwajima Jigoro taught Roa Thunder Breathing after Roa defeated him with his speed.
• Roa learned Thunderclap and Flash and combined it with Sword Draw Style to create Sword Draw Technique: Thunder.
• Kuwajima Jigoro said he would ask Oyakata-sama to make Roa the Rumble Hashira if Roa killed one more Lower Rank demon, and Roa agreed.
• After eating at Rengoku Shinjuro's house and sleeping briefly, Roa left headquarters to hunt demons.
• Roa followed a sinister presence to a ruined house near a town and found a figure cowering in the dark.

Roa encountered Hantengu, Upper Rank Four, and fought the demons created by his splitting Blood Demon Art. Although Roa repeatedly decapitated the clones, he realized he had no way to kill them for good and considered retreating.

• Roa recognized the timid demon as Hantengu, Upper Rank Four, and recalled that decapitation could make him split into powerful clones.
• Hantengu transformed into the enraged demon, who attacked Roa with lightning and destroyed the small house.
• Roa used Thunder Breathing to decapitate the enraged demon, but it split into Empty Joy and Karaku.
• Zohakuten attacked with lightning, and Roa swiftly cut off his head, causing him to split into Aizetsu.
• Roa severed Aizetsu's head and spear, then realized that the clones could not be killed unless all four were decapitated at once.
• Alone and without a reliable way to finish Hantengu, Roa considered running from the fight.

Roa cut down Hantengu’s four demon bodies, then escaped before they could pursue him. Muzan Kibutsuji learned of Roa and his strength, leaving the demons with no need to report the encounter.

• Wrathful Evil, Empty Joy, Sorrowful Awareness, and Karaku attacked Roa, who decided to retreat after testing his sword heart.
• Roa used Light Katana—Revised to sever Empty Joy’s, Sorrowful Awareness’s, and Karaku’s heads, then struck Wrathful Evil with Sword Draw Style—Thunder.
• Roa kicked Wrathful Evil’s head into Empty Joy’s and fled, leaving the demons stunned by his escape.
• Wrathful Evil and Empty Joy argued over the fight before Wrathful Evil said he would report Roa to Muzan Kibutsuji.
• Muzan Kibutsuji spoke to all five demons and said he already knew what had happened.

After escaping Upper Rank Four, Roa reported Hantengu’s abilities to Demon Slayer Corps members and returned to the Rengoku household, where he ate and took a walk with Kanroji Mitsuri. He resumed training while considering how to develop his power and pursue Sun Breathing through Tanjiro Kamado.

• Muzan Kibutsuji studied a book and ordered Gyokko and Akaza to come to him for a mission.
• Roa escaped Hantengu, considered waiting for Muzan Kibutsuji near Tanjiro Kamado’s home, and told Demon Slayer Corps members what he had learned about Hantengu’s forms and weaknesses.
• Roa returned to Rengoku Shinjuro’s home, told Rengoku Kyojuro he had encountered Upper Rank Four, and ate breakfast with Kyojuro and Kanroji Mitsuri.
• Roa walked around Demon Slayer Corps Headquarters with Kanroji Mitsuri and offered guidance about her Breathing Technique.
• Roa returned to training and concluded that he needed to learn Sun Breathing, with Tanjiro Kamado as his path to it.

Roa searched the Water Hashira’s territory for Tanjiro Kamado while hunting demons with his new Nichirin Blade. After killing Rui and the other demons with him, Roa’s trail reached Muzan Kibutsuji, so Roa changed where he stayed.

• Roa collected his Nichirin Blade and learned that Oyakata-sama planned to announce him as the Rumble Hashira at the next Hashira meeting.
• Roa searched the mountains in Giyu Tomioka’s territory for Tanjiro, killing demons and briefly encountering Shinobu Kocho on the road.
• After a week without finding Tanjiro, Roa encountered Rui, Lower Rank Five, and killed Rui and his three demon companions.
• Muzan Kibutsuji learned of Rui’s death and ordered Gyokko to investigate, but Gyokko arrived after Roa had left.
• Roa realized his whereabouts had been exposed and moved to lodging at a Demon Slayer Corps branch instead of returning home.

Roa found the Kamado family and persuaded Nezuko to accept money by claiming his late father had once been helped by Kamado Tanjuro. Nezuko took the money despite her doubts, leaving Roa with a chance to help the family.

• Roa asked an elderly man where Tanjiro Kamado lived and learned the family was on the opposite mountain.
• Roa reached the Kamado home and met Nezuko, then claimed his father had been close to Kamado Tanjuro.
• Nezuko told Roa that her father had died the previous winter.
• Roa offered the struggling family money, but Nezuko initially refused because her mother had taught her not to accept it.
• Roa insisted that helping was only natural, and Nezuko finally accepted the money.