Chapter Summaries

Kurozawa lost his close-quarters fight with Hongyue, who used her blood blades and body-shifting ability to overwhelm him before agreeing to his whispered request. They returned to demon-ruled Asakusa City, where Hyuga Wu was secretly waiting for a chance to confront his enemy.

• Hongyue pierced Kurozawa with blood blades, weakening him until she declared that she had won.
• After Kurozawa healed, he realized Hongyue had baited him into close combat, and she explained that her enlarged body was suited for fighting.
• Kurozawa whispered a request to Hongyue, and she blushed but nodded in agreement.
• At dawn, Kurozawa and Hongyue returned to Asakusa City, where humans were confined and demons guarded the deserted streets.
• Hyuga Wu hid in a house, sensing the demons and waiting for an opportunity to corner the enemy whose fighting spirit had vanished.

The Demon Slayer Corps gathered outside Asakusa City to plan a night assault and rescue the people imprisoned there. As Kagaya Ubuyashiki weighed their slim chances against Kurozawa and the demons, Kyojuro Rengoku urged the swordsmen to fight for the city’s residents.

• The Stone Pillar sensed concentrations of human fighting spirit in all four directions of Asakusa City but could not locate the demons before sunset.
• Kagaya Ubuyashiki explained that he had brought nearly six hundred swordsmen near the city to strike first, but the Corps would have to fight at night to avoid the demons’ daylight ambush advantage.
• Kagaya Ubuyashiki concluded that the Corps had to risk everything to rescue the city’s residents and eradicate the source of the demons.
• Tengen Uzui said the Corps had little chance of defeating six Upper Rank demons and the Demon King.
• Kyojuro Rengoku declared that the swordsmen had a duty to protect the people, and Tengen Uzui recognized that the sixteen-year-old already had Pillar-level strength.

Kagaya Ubuyashiki rallied the Demon Slayer Corps for a final assault on Hongyue, and the swordsmen charged into Asakusa. Kurozawa realized they had targeted Hongyue rather than the imprisoned residents, and she ordered the demons to kill them all.

• Kagaya Ubuyashiki declared that the Corps would eliminate the Demon King and urged the swordsmen to fight despite the risk of death.
• The Stone Pillar sensed the Demon King’s fighting spirit, and Kagaya Ubuyashiki ordered the Corps to begin its assault on Asakusa.
• The Stone Pillar broke through the city’s boundary as Kurozawa and Hongyue detected the approaching swordsmen.
• Kurozawa and Hongyue left their residence, warned Hanada Shizuka and Iguro Obanai to stay inside, and headed toward the city’s busiest street.
• Kurozawa deduced that the swordsmen were converging on Hongyue, while the Upper Moons and elite demons gathered nearby.
• Hongyue transformed into her battle form and ordered the demons to kill the Demon Slayer Corps swordsmen.

Kurozawa’s demons overwhelmed the Demon Slayer Corps after the Upper Moons joined the battle, leaving the Stone Pillar struggling against Kokushibo. With Tengen Uzui dead and the Corps losing a tenth of its forces in seconds, the Stone Pillar feared they would soon be wiped out.

• The Stone Pillar and a Rank A swordsman killed the first attacking demons while the Corps’ coordinated groups defeated several others without casualties.
• Kurozawa ordered the Upper Moons to attack, and Kokushibo killed two Rank A swordsmen before the Stone Pillar engaged him.
• Kokushibo’s Moon Breathing injured the swordsmen around the Stone Pillar, while Kurozawa and the Demon King slaughtered fighters elsewhere.
• Kurozawa killed Tengen Uzui and his wives, and the Demon Slayer Corps lost nearly fifty swordsmen within seconds.
• The Stone Pillar realized the Corps was outmatched and feared it would be wiped out, but he could not break his deadlock with Kokushibo.

Kurozawa slaughtered the Demon Slayer Corps fighters until Hyuga Wu appeared and unleashed a sunlike attack that wounded Hongyue and exposed his power as a second Yoriichi Tsugikuni. The battle paused with Hongyue badly injured and Kurozawa recognizing Hyuga Wu as a threat capable of reversing the fight.

• Kurozawa killed a Pillar and nearly twenty swordsmen, then broke Kanae's blade as she attacked him.
• A blazing slash from Hyuga Wu destroyed Kanae and stripped the flesh from Kurozawa's left arm, suppressing his regeneration.
• Hongyue charged Hyuga Wu, but his sunlike sword strike sent her flying and covered her body in burning wounds.
• Hongyue recognized the swordsman as Yoriichi Tsugikuni and warned Kurozawa that Hyuga Wu carried the same terrifying power.

Hongyue and Kurozawa tried to stall Hyuga Wu while Nakime prepared to trap him in Infinity Castle, but Akaza launched a direct challenge. Akaza unleashed a powerful finishing attack, and Hyuga Wu remained poised to face it.

• Hongyue ordered Nakime to open Infinity Castle and bring the Marechi Blood human to her while Kurozawa stalled Hyuga Wu.
• Nakime began expanding a gateway, struggling to keep it stable under Hyuga Wu's overwhelming fighting spirit.
• Akaza deployed Compass Needle and attacked Hyuga Wu with Flying Meteor Thousand Wheels, but Hyuga Wu dodged every strike without drawing his blade.
• Akaza gathered his fighting spirit into his right arm and unleashed Destruction Kill: Annihilation at Hyuga Wu.

Hyuga Wu repelled a coordinated assault by Akaza, Kokushibo, and Doma, then faced Kurozawa as their confrontation resumed. Kurozawa taunted him while secretly deepening his understanding of sword forms, leaving their next clash imminent.

• Hyuga Wu overpowered Akaza's attack, and Kurozawa ordered the Upper Moons to attack him together.
• Kokushibo, Doma, and Akaza launched their strongest attacks while Hantengu and Gyokko kept the Pillars occupied.
• Hyuga Wu evaded the attacks with Sun Breathing: Fourth Form: Mirage Heat Haze and sliced apart Doma's four ice giants.
• Doma's ice dust briefly slowed Hyuga Wu, but his heated breathing melted it away, leaving the Upper Moons wary of him.
• Hyuga Wu told Kurozawa he had changed and promised to kill him, while Kurozawa secretly used Potential Points to deepen his sword-form understanding.

Kurozawa trapped Hyuga Wu inside Infinity Castle so he could gather Potential Points and strengthen his allies. With Nakime able to hold Hyuga Wu for only about ten minutes, Kurozawa ordered the demons to cripple the swordsmen while he claimed the final blows.

• Kurozawa decided to spend Potential Points on Water Breathing Sword Forms and planned to keep Hyuga Wu occupied in Infinity Castle.
• Kurozawa used a burst of Fighting Spirit to distract Hyuga Wu, allowing Nakime to open a gateway beneath him and drop him into Infinity Castle.
• Hongyue devoured the bound Sanemi Shinazugawa, recovered her strength, and condensed her Fighting Spirit into tangible form.
• Hongyue learned that Hyuga Wu had found Nakime and was rapidly tearing through Infinity Castle, leaving her only about ten minutes to hold him.
• Kurozawa ordered the demons to cripple the swordsmen without killing them, then joined Hongyue in attacking the Stone Pillar.

Kurozawa and Hongyue killed the Stone Pillar and annihilated the Demon Slayer Corps, gaining Potential Points. After Divine Will sent lightning and a storm against Kurozawa, he asked Hongyue whether they could kill all the Upper Moons, and she said they could.

• The Stone Pillar shattered Hantengu’s wooden dragons and struck him in the chest with his flail.
• Hongyue punched the Stone Pillar, and Kurozawa beheaded him with Bright Day.
• Kurozawa and Hongyue slaughtered the swordsmen in Asakusa, annihilating the Demon Slayer Corps and earning Kurozawa thirteen hundred Potential Points.
• Divine Will sent lightning toward Kurozawa, but the bolts missed and struck nearby ground and buildings as a storm broke over Asakusa.
• Kurozawa asked Hongyue whether they could kill all the Upper Moons, and she answered yes.

Hongyue’s bloodline power turned the demons against themselves as Kurozawa hunted the Upper Moons. Kurozawa killed Kokushibo and Doma, while Akaza launched himself at Hongyue.

• Hongyue triggered the bloodline within every demon, causing Bloodline Demon Hands to erupt from their hearts and attack them; Hantengu was beheaded amid the chaos.
• Kurozawa killed demons and gained Potential Points while Kokushibo struggled against his regenerating demon hand.
• Kurozawa exploited Kokushibo’s disrupted attack to behead him, and Kokushibo recalled killing Yoriichi Tsugikuni before turning to ash.
• Kurozawa charged Doma, who stopped resisting, and beheaded him.
• Akaza’s fighting spirit flared, and he leaped toward Hongyue.

Kurozawa killed Akaza with his newly formed Pitch-Black Flames as Akaza remembered his human life and reunited with Koyuki. With Nakime close to being killed by Hyuga Wu, Kurozawa prepared to face the threat and used his Potential Points to improve himself.

• Hongyue restrained Akaza with the Bloodline Demon Hand while Kurozawa severed his head, but Akaza began regenerating and breaking free of her control.
• Kurozawa struck Akaza with a fireball of Pitch-Black Flames, which burned away Akaza's fighting spirit as he remembered Koyuki and his former name, Hakuji.
• Akaza gave up resisting and turned to ash, granting Kurozawa 297 Potential Points and 30 Power of Despair.
• Hongyue warned Kurozawa that Nakime could not hold off Hyuga Wu much longer, and Kurozawa said he was confident he could face him.
• Kurozawa asked Gray-White to perfect his Immortal Demon Body and distribute his remaining Potential Points evenly among his combat attributes.

Kurozawa perfected his Immortal Demon Body, dramatically increasing his strength and severing Hongyue’s control over his bloodline. He joined Hongyue in the Infinity Castle to confront Hyuga Wu, and the chapter ended with Kurozawa charging him at full power.

• Kurozawa spent more than three thousand Potential Points and completed the transformation into an Immortal Body.
• Nakime opened the Infinity Castle, where Kurozawa and Hongyue joined her as Hyuga Wu pursued them.
• Kurozawa and Hongyue blocked Hyuga Wu’s attacks, and Hyuga Wu recognized that both had grown much stronger.
• Kurozawa activated Total Concentration and the fourth stage of the Higan Suzume Eye, boosting his combat attributes above thirty.
• Kurozawa charged Hyuga Wu while Hongyue moved along his flank to pressure him.

Hyuga Wu and Kurozawa exchanged powerful attacks in the Infinity Castle, and Hongyue joined the fight before Hyuga Wu wounded her. The chapter ended as Hyuga Wu’s Sun Breathing Tenth Form collided with Kurozawa’s Water Breathing Secret Art, unleashing a destructive shockwave.

• Hyuga Wu’s crimson slash overpowered Kurozawa’s attack, but Kurozawa smashed the remaining blade light apart and regenerated his injured palm.
• Kurozawa drove Hyuga Wu through several buildings while Nakime arranged obstacles beneath him, but Hyuga Wu emerged without serious injury.
• Hongyue attacked Kurozawa from behind, and Hyuga Wu escaped their combined assault with a thrust that severed part of Hongyue’s leg and cut her face.
• Kurozawa told Hongyue to rejoin him after regenerating, then prepared his Water Breathing Secret Art as Hyuga Wu gathered power above him.
• Hyuga Wu unleashed Sun Breathing Tenth Form: Brilliant Grace, and Kurozawa’s Water Breathing Secret Art met it in a clash that shattered the surrounding buildings.

Kurozawa and Hyuga Wu fought through the destruction of Infinity Castle until Kurozawa shattered Hyuga Wu’s Nichirin Blade in a mutual, devastating exchange. With both fighters badly wounded, Kurozawa turned to Hongyue for what came next.

• Stray sword strikes from Kurozawa and Hyuga Wu split Nakime’s loft, gravely wounded her, and caused Infinity Castle to collapse.
• Kurozawa and Hyuga Wu continued fighting in the rain, both accumulating severe injuries as their attacks kept the surrounding area clear of raindrops.
• Kurozawa hurled Bright Day at Hyuga Wu, formed a second blade from Pitch-Black Aura, and rushed in behind the first attack.
• Kurozawa struck the base of Hyuga Wu’s Nichirin Blade, shattering it, then kicked Hyuga Wu into the ruins of a house.
• Hyuga Wu’s controlled blade fragments pierced Kurozawa’s heart, leaving both fighters unable to pursue as Kurozawa turned to Hongyue.

Kurozawa defeated Hyuga Wu and survived the battle in ruined Asakusa, where he discovered that the World Seed could carry him beyond the Demon Slayer World. The chapter ended with Hongyue embracing him as his presence began to slip away from the world.

• Hongyue killed Hyuga Wu, who admitted defeat and died while murmuring Little Nai.
• Hongyue devoured Hyuga Wu's corpse, and Kurozawa recovered after lightning struck him.
• Kurozawa found Nakime unconscious, let her recover, and told her to take the available food into Infinity Castle.
• Kurozawa realized he had reached the Demon Slayer World's limits and discovered that the World Seed could take him across the Mother River to other worlds.
• Hongyue sensed Kurozawa becoming ethereal, embraced him, and pushed him into a shallow puddle amid the rain and lightning.

After the sun returned to Asakusa City, Kurozawa discovered that his perfected Immortal Body let him bask in sunlight without harm. Hongyue tried to endure the sunlight but could not resist it, and Kurozawa resolved to remain in this world until she mastered the Immortal Body.

• The rain ended, sunlight returned to Asakusa City, and the surviving residents began to emerge from hiding.
• Kurozawa woke beside Hongyue and went outside to test his perfected demon body in the sunlight.
• Kurozawa felt no pain in the sun and explained that his Immortal Body had erased his weakness to it.
• Hongyue said she once hated the sun because she could not possess it, but now she had Kurozawa, her own sun.
• Hongyue touched the sunlight and used her regenerative power to fight its damage until Kurozawa stopped her.
• Kurozawa considered Hongyue's slow Sun Breathing progress and decided to stay until she gained the Immortal Body before leaving for another world.

Kurozawa promised Hongyue he would find a way to take her between worlds, while Hongyue planned to build an empire under the Black Flame Blood Moon banner. Kurozawa then visited the dying Tanjuro and offered to help him live, leaving Tanjuro asking what it would cost.

• Kurozawa told Hongyue he would seek a way to take her from her world and travel with her across dimensions.
• Hongyue declared that she would establish an empire under the Black Flame Blood Moon banner so Kurozawa could find her when he returned.
• Hongyue gave Kurozawa some of her blood, and he set out for Mount Kumotori to find candidates for Crescent Moon.
• Kurozawa appeared beside the gravely ill Tanjuro and pointed out that he would soon die, leaving his family behind.
• Kurozawa offered to help Tanjuro live until old age, and Tanjuro asked what price he would have to pay.

Ten years after Kurozawa helped Hongyue build a powerful demon society, he visited Mount Sagiri and warned Makomo that another conflict would come. Hongyue mastered the Immortal Body, and she and Kurozawa tested her strength in a head-on clash.

• Over ten years, Kurozawa helped Hongyue gather elite demons and trained in several Breathing Techniques, while Hongyue advanced in Sun Breathing.
• Kurozawa visited Sakonji Urokodaki’s grave on Mount Sagiri and reflected on his past.
• Makomo met Kurozawa, and he warned her to stay on the mountain because a new organization and future conflict would emerge.
• Kurozawa returned to Asakusa and sensed Hongyue master the Immortal Body.
• Hongyue charged Kurozawa, and he met her punch head-on without moving as they compared their strength.

After ten years with Hongyue, Kurozawa chose to leave the Demon Slayer World and travel to another world, leaving his body behind for her. As the World Seed carried him through the Illusory Long River, a powerful being tried to seize it, and Kurozawa entered a world amid terrible pain.

• Kurozawa explained to Hongyue that his body would remain behind while his soul traveled onward, carrying the abilities imprinted on it.
• Hongyue embraced Kurozawa and asked him not to make her wait too long; he promised to return and see her reign over the world.
• After Hongyue left during the night, Kurozawa decided that exploring other worlds mattered more to him than remaining at the pinnacle of the Demon Slayer World.
• Kurozawa activated the Gray-White Panel, and the World Seed separated him from his body and carried him away.
• Kurozawa saw countless worlds drifting through the Illusory Long River before a powerful being tried to pull the World Seed out of it.
• The World Seed resisted the being and forced its way into a world, while Kurozawa suffered agonizing pain and lost consciousness.

Eighteen years after arriving in a modern world, Kurozawa remained unable to find any signs of demons or other supernatural beings and kept his distance from his sister, Kana. He practiced Moon Breathing in his room, while Kana’s unusual ability to sense only him and her growing attachment remained unexplained.

• Kana waited for Kurozawa to return home and offered him tempura, but he declined and went to his room.
• Kurozawa reflected on spending eighteen years in a world that seemed identical to an ordinary modern world and considered the danger of becoming a demon there.
• Kurozawa recalled that his sister, Kimishima Kana, could sense his presence within a hundred meters but could not sense anyone or anything else.
• Kurozawa remembered finding romantic manga about siblings among Kana’s belongings and suspected her unique connection to him had shaped her feelings.
• Kurozawa practiced Kokushibo’s Moon Breathing, which he had found suited his body better than the other Breathing Techniques.