Chapter Summaries

After learning Tanjuro’s Sun Breathing dance, Rokuya promised to protect Tanjiro and gained a large reward from the system. Two days later, he used a modified Sunflare Chakram against three Demons, killing two and sending the last fleeing into the forest.

• Tanjuro finished the Kagura dance, collapsed into coughing, and told Rokuya he had no regrets.
• Rokuya recognized the dance as a powerful legacy and promised to protect Tanjiro if he followed the same path.
• The system awarded Rokuya 3,000 Gratitude Points for Tanjuro’s trust in him.
• In a forest near Tokyo Prefecture, Rokuya confronted three Special Ability Demons feasting on a caravan guard.
• Rokuya combined Sun Breathing with Magic Power to unleash Sunflare Chakram, decapitating two Demons and burning away their regeneration.
• The surviving one-horned Demon fled, while Rokuya watched without pursuing him.

After defeating Lower Rank Four, Koyuki, Rokuya reported to Kagaya Ubuyashiki, who ordered him to take three days off with Kanae. Rokuya returned to the Butterfly Mansion, where Kanae and Shinobu welcomed him with a feast.

• Rokuya used his single-target critical strike to split the Horned Demon in half and vowed to defeat Muzan.
• Rokuya reported to Kagaya Ubuyashiki that he had slain Koyuki and cleared demons from the area around Tokyo Prefecture.
• Kagaya noticed Rokuya's killing intent and ordered him to take three days off, encouraging him to spend time with Kanae.
• Rokuya returned to the Butterfly Mansion, where Shinobu teased him and Kanae welcomed him home.
• Rokuya ate an enormous meal at the Butterfly Mansion, astonishing Kiyo, Sumi, and Little Naho.

After recovering from his fight with Lower Rank Four, Rokuya asked Kanae to take a three-day break with him and go on a date in Tokyo Prefecture. The next day, they explored the crowded city together, and Rokuya held Kanae’s hand so they would not get separated.

• Rokuya finished a huge meal at the Butterfly Mansion, prompting Shinobu Kocho to threaten to dissect him while Kanae warned him not to hide injuries or neglect eating.
• Rokuya told Kanae that Oyakata-sama had given him three days off and asked her to go on a date with him in Tokyo Prefecture; Kanae gladly agreed.
• Shinobu Kocho watched Rokuya and Kanae’s exchange from outside the dining room, but Aoi Kanzaki covered her mouth and dragged her away.
• The next day, Rokuya and Kanae walked through bustling Tokyo Prefecture in civilian clothes as Kanae admired the city.
• When a crowd jostled them near a passing tram, Rokuya sheltered Kanae and interlaced his fingers with hers so they would not get separated.

Rokuya and Kanae spent a romantic day together in Tokyo, and Rokuya protected her from three drunken swordsmen and gave her an amethyst butterfly hairpin. By the Sumida River, Kanae admitted her fears of dying in battle, and Rokuya vowed that he would keep her alive no matter what.

• Rokuya drove off three drunken swordsmen who harassed Kanae, frightening them with his killing intent and crushing a piece of brick in his hand.
• Rokuya bought Kanae an amethyst butterfly hairpin to replace the one chipped when she saved him on Mount Fujikasane.
• Kanae told Rokuya she once dreamed of humans and demons living peacefully, but had lost hope after witnessing so many tragedies.
• Kanae confessed that she feared dying in battle and never seeing Rokuya or Shinobu again.
• Rokuya embraced Kanae and vowed to protect her, even if he had to fight fate itself.

After sharing a tender farewell with Kanae Kocho, Takanashi Rokuno went to Hachijo Island to investigate missing fishermen and discovered a clan preparing to sacrifice Obanai Iguro to a demon. He freed Obanai from his cell, but the boy refused to leave, and Rokuya challenged his belief that dying would atone for his clan’s crimes.

• Kanae Kocho kissed Rokuya, and he vowed to protect her regardless of the cost.
• A Kasugai Crow warned Rokuya that fishermen had gone missing on Hachijo Island, so he crossed the sea to investigate.
• Rokuya found a mansion where women planned to sacrifice a mismatched-eyed boy to their clan’s supposed god in exchange for wealth.
• Rokuya traced the demon’s presence to an underground dungeon and cut through the lock on Obanai Iguro’s cell.
• Obanai refused to leave, blaming himself for benefiting from his clan’s sacrifices of people to the demon.
• Rokuya told Obanai that staying behind would only feed the demon and lead it to kill more people.

Rokuya rescued Obanai from his clan and exposed the snake demon they worshipped as a monster. He left the demon to slaughter the clanspeople who had fed it offerings, while Obanai saw Rokuya as a beacon in the darkness of his life.

• Rokuya convinced Obanai to leave the cell and took him into hiding as the clan members came to deliver him to their god.
• Rokuya and Obanai witnessed the snake demon kill a clanswoman and learned that the supposed god was a monster.
• Rokuya cut off part of the snake demon’s tail, then seized Obanai and escaped through the cave roof.
• Rokuya explained that the demon had turned on the clan after losing its offering, and that he would not save the clanspeople who had fed it victims.
• Obanai looked at Rokuya beneath the moonlight and saw him as the sun.

Rokuya killed the snake demon on Hachijo Island and brought Obanai to the Demon Slayer Corps, where Kagaya welcomed him. Back at the Butterfly Mansion, Rokuya heard that Ruka Rengoku was gravely ill and that Shinjuro might retire, leaving him thinking of Kyojuro.

• Rokuya used a modified Sunflare Chakram to kill the snake demon and returned to Obanai.
• Rokuya took Obanai to Kagaya Ubuyashiki, who welcomed him into the Demon Slayer Corps.
• Obanai swore to dedicate his life to Rokuya, whom he revered as a god.
• At the Butterfly Mansion, Rokuya ate to recover his energy after using the Arcana Armor.
• Rokuya overheard that Ruka Rengoku was gravely ill and Shinjuro might retire, then murmured Kyojuro Rengoku's name.

Rokuya went to the Rengoku residence, hoping his Arcana Power might help Ruka and determined to confront Shinjuro’s despair. After finding Shinjuro drunk, he beat him and demanded that he stop abandoning his family while Ruka was still alive.

• Rokuya considered whether Arcana Power could sustain another person’s life and decided to visit the Rengoku residence.
• Senjuro Rengoku opened the gate and warned Rokuya that Shinjuro was not receiving visitors, but Rokuya went inside to find him.
• Rokuya found Shinjuro drunk in the dojo, and Shinjuro mocked him for coming to lecture or ridicule him.
• When Shinjuro insisted that swordsmanship could not protect anyone, Rokuya kicked him into the dojo wall and accused him of hiding his cowardice behind grief.
• Rokuya compared Shinjuro’s despair with Kagaya Ubuyashiki’s courage and urged him to spend Ruka’s remaining time by her side instead of drinking and worrying his family.

Rokuya used his arcana power to stabilize Ruka’s terminal illness and extend her life, earning the Rengoku family’s gratitude. Kyojuro returned from a mission and, after hearing his mother had improved, asked Rokuya to spar.

• Rokuya told Shinjuro he could stabilize Ruka’s condition and followed him to her sickroom.
• Rokuya used his arcana power to restore some of Ruka’s vitality, and she woke feeling better.
• Rokuya said Ruka’s condition was stable and she could live another three to five years with proper rest.
• Shinjuro thanked Rokuya and pledged his gratitude, while the system awarded Rokuya 5,500 Gratitude Points for saving Ruka.
• Kyojuro returned from a mission, learned Ruka had improved, and asked Rokuya to spar after visiting her.

Rokuya defeated Kyojuro in a sparring match and helped Shinjuro recognize the damage his despair had done to his son. At the Ubuyashiki Estate, Rokuya told Kagaya that Tamayo might be able to make lifesaving medicine from his blood, and he decided to go to Tokyo Prefecture to investigate.

• Rokuya sparred with Kyojuro, who fought with Flame Breathing but lost after an extended exchange.
• Rokuya praised Kyojuro's resolve and predicted he could qualify for Hashira within a year, while Shinjuro watched and realized he had nearly ruined his son's future.
• Rokuya left the Rengoku residence, pleased by the Gratitude Points he had gained from helping the family.
• Rokuya reported to Kagaya that he had stabilized Ruka and explained that Tamayo was studying his blood for a possible lifesaving medicine.
• Kagaya eagerly asked whether Rokuya's blood could produce the medicine, and Rokuya said he would go to Tokyo Prefecture to confirm the results.

After returning from his meeting with Kagaya, Rokuya came back to the Butterfly Mansion and told Kanae and Shinobu that Tamayo had discovered a powerful healing energy in his blood. The two medical practitioners were stunned by the prospect of a treatment that could keep mortally wounded Demon Slayers alive.

• Kagaya bowed to Rokuya and declared that he believed Rokuya would end Muzan Kibutsuji's thousand-year reign.
• Rokuya returned to the Butterfly Mansion, where Kanae, Shinobu, Aoi, and the three girls welcomed him with a feast.
• Rokuya ate eighteen bowls of rice to replenish the energy he had spent saving Ruka Rengoku.
• Rokuya asked Aoi to take the girls away, then told Kanae and Shinobu that Tamayo had extracted a healing energy from his blood.
• Kanae and Shinobu reacted with disbelief when Rokuya explained that the energy could keep a dying person alive.

Rokuya explained that his arcana power could be used to produce emergency medicine and decided to return to Tokyo Prefecture to meet Tamayo. There, he found three demons attacking a father and daughter and killed them before disappearing into the night.

• Rokuya showed Kanae his arcana power and said Tamayo’s drug could turn it into emergency medicine.
• Rokuya told Kanae he would return to Tokyo Prefecture to meet Tamayo and confirm the medicine’s production plans, while Shinobu warned him not to overuse his blood.
• Rokuya arrived in Tokyo Prefecture at night and found three demons cornering a civilian father and his daughter.
• Rokuya drew the Shura Greatblade and killed all three demons with Blade Tempest.
• Rokuya left banknotes for the injured father and daughter, then vanished into the night.

Rokuya visited Tamayo’s hidden laboratory to collect a life-saving medicine made from his blood, which could keep a gravely wounded person alive for a day. He accepted the limit of one dose every six months and vowed to protect Tamayo’s research from demons, even Muzan.

• Rokuya slaughtered demons at three hideouts in Tokyo Prefecture, gaining over three thousand Gratitude Points.
• Rokuya found Tamayo’s concealed residence and entered despite Yushiro’s objections.
• Tamayo explained that she had developed a medicine from Rokuya’s blood that could sustain someone with fatal injuries for at least a day.
• Yushiro and Tamayo warned that making the medicine drained Rokuya’s power and could cause his body to collapse, limiting production to one syringe every six months.
• Rokuya took the finished syringe and promised to protect Tamayo’s research as the Kai Hashira.

After promising Tamayo that he would fight against fate, Rokuya spent six months responding to demon emergencies while training Sanemi and Obanai. Back at headquarters, Obanai told Rokuya that Water Breathing did not suit his natural fighting style.

• Rokuya promised Tamayo he would return for food and left with the emergency medicine as dawn broke.
• Rokuya killed a powerful demon in a mountain valley and reflected on how the Corps had kept him constantly traveling for urgent missions.
• Rokuya returned to headquarters and found Sanemi and Obanai sparring in the Butterfly Mansion's courtyard.
• Rokuya asked Obanai how he felt after completing Final Selection, where Obanai had killed twenty-one demons without injury.
• Obanai told Rokuya that Water Breathing conflicted with the way his body naturally moved and left him vulnerable.

Rokuya helped Obanai develop Serpent Breathing, then diagnosed Sanemi’s physical weaknesses and proposed daily barehanded sparring to strengthen him. The chapter left Sanemi facing a punishing new training challenge.

• Sanemi insulted Obanai’s Water Breathing, but Rokuya stopped their argument and told Obanai to create a style suited to him.
• Rokuya taught Obanai to adapt Water Breathing’s flowing movements into serpentine strikes, and Obanai practiced under his guidance.
• Three days later, Obanai unveiled Serpent Breathing’s First Form: Winding Serpent Slash and thanked Rokuya.
• Sanemi asked Rokuya to make him stronger, and Rokuya pointed out that his physical ability lagged behind his swordsmanship.
• Rokuya challenged Sanemi to spar with him barehanded for three hours each day, requiring Sanemi to last ten minutes without falling.

Rokuya spent half a month brutally training Sanemi, whose strength and endurance began to improve. After receiving Kagaya Ubuyashiki’s report of powerful demons at Mount Natagumo, Rokuya took Sanemi and Obanai there to confront them.

• Rokuya repeatedly defeated Sanemi in training, pushing him to improve while earning Gratitude Points from Sanemi’s admiration.
• After three hours of training, Rokuya ordered Obanai to have the Kakushi Corps prepare a medicinal bath for Sanemi.
• Half a month later, Rokuya received Kagaya Ubuyashiki’s letter warning that multiple powerful demons were near Mount Natagumo.
• Rokuya told Obanai to bring Sanemi and his sword, then led them toward Mount Natagumo to face the Twelve Kizuki.
• At Mount Natagumo, Sanemi and Obanai noticed signs of spider-like demons, including cocoons and human-headed spiders.

Rokuya identified a powerful demon behind the spider demons on Mount Natagumo and sent Sanemi and Obanai to draw it out while he watched from hiding. Rui, Lower Rank Five, appeared after the hunters killed his spider family, and Sanemi erupted in rage at Rui’s twisted view of family.

• Rokuya deduced that a powerful demon was granting spider abilities to the demons on Mount Natagumo and ordered Sanemi and Obanai to flush it out while he concealed his presence.
• Sanemi and Obanai hunted down spider demons across the mountain, with Sanemi showing increased strength and Obanai demonstrating his emerging Serpent Breathing.
• Rui appeared in the valley as the spider demons’ bodies crumbled, revealing the inscription Lower Rank Five in his eye.
• Rui dismissed his dead family as useless and threatened to kill Sanemi and Obanai before finding a new family.
• Sanemi furiously confronted Rui and demanded to know whether he understood what family meant.

Sanemi and Obanai fought Rui, using coordinated Wind and Serpent Breathing to counter his deadly spider threads and unusually hard neck. Sanemi broke through Rui’s defensive mesh, opening a path for Obanai to attack.

• Sanemi charged Rui with Wind Breathing, while Obanai slipped past Rui’s threads to strike at his neck.
• Rui evaded Obanai’s attacks and countered with reinforced threads, but Sanemi deflected them and helped Obanai retreat.
• Sanemi and Obanai agreed to combine Sanemi’s wide-area attacks with Obanai’s mobility to overcome Rui’s defenses.
• Sanemi drew Rui’s attention with a barrage of wind blades as Obanai moved into a blind spot.
• Sanemi struck the mesh’s weakest point with Wind Breathing, Sixth Form, and tore open a gap.

Obanai and Sanemi beheaded Rui, only to discover that he had severed his own neck before their blades struck and survived. As Rui unleashed a devastating attack against the exhausted Demon Slayers, Rokuya appeared in front of them with Air-Shura.

• Obanai trapped Rui's blade with his thread armor, but Sanemi struck Rui from behind and helped Obanai cut off his head.
• Rui's body picked up his head and reattached it, revealing that he had cut his own neck with threads before the Nichirin Blades hit.
• Rui unleashed his Blood Demon Art: Thread Rotation against the exhausted Sanemi and Obanai.
• Rokuya appeared before Sanemi and Obanai, wielding Air-Shura, and used Blade Tempest.

Rokuya killed Rui with a single overwhelming strike, then warned Sanemi and Obanai not to lower their guard until demons had turned to ash. At the Hashira Meeting, Kagaya Ubuyashiki revealed troubling reports about the Eternal Paradise Cult and the disappearance of its young female followers.

• Rokuya cut through Rui’s Thread Rotation and killed him with one sword strike that also carved through the woods and a distant hill.
• Rokuya chastised Sanemi and Obanai for assuming Rui was defeated before he had turned to ash.
• At the Ubuyashiki Estate, Rokuya attended the Hashira Meeting, where Tengen Uzui praised his recent record and he exchanged a look with Kanae Kocho.
• Kagaya Ubuyashiki told the Hashira that the Eternal Paradise Cult had attracted many followers and that young women who joined it often disappeared.