Chapter Summaries

Lu You learned that local powers planned to assassinate him after Fuyuki High School’s principal left, so he used his newly activated template system to seek strength. The system selected Yuji Itadori as his template, leaving Lu You startled by the displayed age of 383.

• An assassin organization discussed killing Lu You and set a suggested price of 10 million Sakura Currency for the mission.
• Lu You woke in his shabby teachers’ dormitory and recalled that the old principal’s impending transfer would leave him exposed to Fuyuki City’s local powers.
• Lu You reviewed his Psychic Energy cultivation and system panel, which showed one available template draw and an Astral Transit ability that could take him to another world.
• Lu You ordered the system to draw a template and send him to another world immediately.
• The system selected Yuji Itadori as a purple template, and Lu You was shocked when it listed Yuji’s age as 383.

Lu You installed the Yuji Itadori template and transmigrated to Mount Kumotori, where he interrupted Giyu Tomioka as Giyu tried to take Nezuko from Tanjiro. Lu You and Giyu clashed briefly, then learned each other's names, though Giyu insisted that people did not dislike him.

• Lu You installed the 383-year-old Yuji Itadori template and chose to transmigrate despite not knowing what awaited him.
• Lu You arrived on Mount Kumotori as Giyu Tomioka moved to take Nezuko Kamado from her brother, Tanjiro.
• Lu You intervened and gained Yuji Itadori's approval, increasing his synchronization and unlocking an intermediate physique.
• Lu You mistook Giyu's explanation for a threat and charged him, but Giyu used Water Breathing to deflect Lu You's punch and send him flying.
• Lu You realized he was in the Demon Slayer world, exchanged names with Giyu, and asked if Giyu's way of speaking made people dislike him.
• Giyu stayed silent before insisting that people did not dislike him.

Lu You protected Tanjiro and Nezuko from Giyu, then helped prove the siblings’ bond when Nezuko defended Tanjiro despite becoming a demon. After Giyu invited Lu You to join the Demon Slayer Corps, Lu You accepted, and his words unlocked two new skills.

• Lu You comforted Tanjiro after learning that a demon had killed his family, and he stood between the siblings and Giyu when Giyu insisted Nezuko had to die.
• Giyu challenged Tanjiro to show resolve instead of begging, and Tanjiro entrusted Nezuko to Lu You.
• Lu You let Nezuko struggle free; after Tanjiro and Nezuko fought Giyu and were defeated, Giyu saw Nezuko protect her brother.
• Giyu explained demons and Nichirin Blades to Lu You, then asked him to join the Demon Slayer Corps because of his kindness and talent.
• Lu You shared his dream of living meaningfully before death, earning a synchronization boost that unlocked Reverse Cursed Technique and Malevolent Shrine, and agreed to join the Corps.

After waking from surgery, Tanjiro buried his family and traveled with Lu You and Nezuko toward Mount Sagiri. On the way, they found a blood-soaked inn, where Lu You attacked a man-eating demon and ordered Tanjiro to help finish it off.

• Tanjiro woke beside Lu You, learned Giyu had directed him to find Sakonji Urokodaki, and resolved to protect Nezuko.
• Tanjiro buried his family, then left with Nezuko and Lu You for Mount Sagiri.
• Lu You and Tanjiro smelled blood near a mountain inn and decided to investigate for survivors.
• Lu You struck the demon inside the inn with a pebble, drawing it outside.
• Lu You blasted the demon's waist apart with a punch, tore free its grasping arm, and told Tanjiro to chop it to pieces with his axe.

Lu You taught Tanjiro to face the responsibility of stopping Nezuko if she ever harmed an innocent, then the two reached Mount Sagiri and met Sakonji Urokodaki. While Urokodaki tested Tanjiro, Lu You stayed behind with Nezuko and demonstrated a powerful cutting technique.

• Lu You urged Tanjiro to strike the demon’s head and told him that if Nezuko ever killed an innocent, he must kill her and then take his own life; Tanjiro resolved to prevent that from happening.
• Lu You and Tanjiro cremated the victims’ bodies, rested at the inn, and continued toward Mount Sagiri the next morning.
• Sakonji Urokodaki met Lu You and Tanjiro, then led them on a strenuous run to his house while assessing them and recalling Giyu Tomioka’s letter.
• Sakonji Urokodaki took Tanjiro away for further testing and told him to leave Nezuko in Lu You’s care.
• Lu You stayed with Nezuko and used a whispered technique to cut a thick tree in half, leaving her astonished.

Lu You discovered that Reverse Cursed Technique let him generate cursed energy from his body, then realized Breathing Styles could strengthen his supply. As Sakonji Urokodaki began teaching him, Lu You imitated the breathing pattern within minutes, leaving Urokodaki stunned while Tanjiro had yet to return.

• Lu You used Reverse Cursed Technique to convert his bodily energy into cursed energy and found that one slash exhausted his small supply.
• Lu You realized Breathing Styles could increase the cursed energy he generated, then cleared away the tree he had knocked down.
• Sakonji Urokodaki returned and agreed to teach Lu You the Breathing Style while Tanjiro attempted to return before dawn.
• Sakonji Urokodaki explained the Breathing Style and demonstrated its breathing rhythm to Lu You.
• Lu You imitated the breathing pattern after only a few dozen minutes, astonishing Sakonji Urokodaki as morning arrived without Tanjiro.

Lu You completed his Water Breathing training under Sakonji Urokodaki and prepared to leave the mountain to learn another style. Urokodaki planned to recommend him to a Thunder Breathing cultivator, whose two successors included Kaigaku and Zenitsu Agatsuma.

• Lu You developed a steady Total Concentration Breathing Style, while Tanjiro completed Urokodaki’s mountain trial and earned his approval.
• Over the next several months, Tanjiro improved at navigating the mountain traps as Lu You mastered Water Breathing and increased his strength.
• Lu You sparred with Sakonji Urokodaki, using Water Breathing’s Tenth Form, while Tanjiro watched.
• Urokodaki declared Lu You’s training complete and told Tanjiro he would approve his Corps examination once he reached one-third of Lu You’s level.
• Urokodaki offered to have Giyu recommend Lu You to a nearby Thunder Breathing cultivator, whose successors included Kaigaku and Zenitsu Agatsuma.

Lu You left Tanjiro and Urokodaki to seek training from Jigoro Kuwajima, but stopped in Utsunomiya and uncovered a sushi shop owner who was a man-eating demon. After surviving the demon’s crushing Blood Demon Art, Lu You faced him with his sword and a mysterious technique.

• Lu You said goodbye to Tanjiro and received a fox mask from Sakonji Urokodaki before setting out toward Mount Momoi to learn Thunder Breathing.
• After nearly half a month of travel, Lu You visited a sushi shop in Utsunomiya and suspected its owner, Pingshong, was serving human flesh.
• Pingshong sent the children away, revealed himself as a demon, and attacked Lu You with a blood thread.
• Pingshong used his Blood Demon Art to seal Lu You inside the shop and compress the building into a wooden sphere.
• Lu You emerged unharmed, sliced the sphere into pieces, and confronted Pingshong with a technique he called “Lataib!”

Lu You defeated the demon Hirakane and learned about his tragic past, then confronted Kaigaku, who mistook him for a demon and attacked. Lu You began using his Domain Expansion against Kaigaku.

• Lu You used his slashes and Water Breathing to kill Hirakane, who asked him to give sushi to the children before turning to ashes.
• Lu You received a 2% synchronization increase, assessed Hirakane's Blood Demon Art, and considered training Constant Total Concentration Breathing.
• Kaigaku arrived at the ruins, accused Lu You of being a demon, and drew his blade.
• Kaigaku attacked Lu You out of jealousy and anger, and Lu You formed a hand seal and activated Malevolent Shrine.

Lu You killed Kaigaku with his Malevolent Shrine after Kaigaku tried to kill him, and a Kasugai Crow recorded the fight. The Demon Slayer Corps sent Tengen Uzui to find Lu You, who then faced an old man threatening to disembowel himself over compensation.

• Lu You trapped Kaigaku in a closed-domain Malevolent Shrine and killed him with thousands of slashes, despite Kaigaku pleading for his life.
• Lu You left the ruins as residents approached, unaware that a Kasugai Crow had recorded the killing.
• Kagaya Ubuyashiki and Amane discussed Lu You's actions and decided to send Tengen Uzui to bring him to headquarters.
• Tengen Uzui accepted the assignment and set out toward Utsunomiya Prefecture after taking several missions along the way.
• Lu You confronted an old man holding a knife and warned him not to try to scam him over compensation.

Lu You persuaded Jigoro Kuwajima to abandon seppuku and followed him to Mount Momoi to learn Thunder Breathing, where he met Zenitsu Agatsuma. After two months of training, Lu You left for Mount Fujikasane, intending to challenge the Demon Slayer Corps’ selection system.

• Lu You stopped Jigoro Kuwajima from committing seppuku by asking him to teach Thunder Breathing, then delivered sushi to the children of Hirakane Ryusuke.
• Lu You gained 3% Synchronization Value and unlocked the Steel Ball Expert ability.
• Jigoro Kuwajima brought Lu You to Mount Momoi, where he met Zenitsu Agatsuma, who grieved over Kaigaku’s death.
• Over two months, Lu You learned Thunder Breathing and trained Zenitsu to strengthen his swordsmanship.
• Lu You thanked Jigoro Kuwajima and left for Mount Fujikasane, planning to overturn the selection system.

Lu You met Tengen Uzui, outran the Sound Hashira in a test of speed, and reached Mount Fujikasane for Final Selection. He entered the test determined to survive and hunt the demons inside.

• Jigoro Kuwajima advised Lu You to be patient, and Lu You set off after saying goodbye to him and Zenitsu.
• On the way to Mount Fujikasane, Tengen Uzui assured Lu You that headquarters had no concerns about his conflict with Kaigaku, then challenged him to escape pursuit.
• Lu You used Thunder Breathing to keep ahead of Tengen Uzui, who eventually stopped chasing him and acknowledged his talent.
• Lu You traveled for several days and arrived at Mount Fujikasane, where the attendants explained the seven-day survival test.
• Lu You climbed into the mountain, prepared to face the demons and pass Final Selection.

Lu You gathered a group of examinees to help him clear Mount Fujikasane and challenge the Demon Slayer Corps’ selection system. Three days later, they encountered the Hand Demon, and Lu You struck it down with Source Breathing.

• Lu You continued slaughtering demons while searching Mount Fujikasane for the Hand Demon, and a group of examinees asked to follow him.
• Lu You explained that he intended to change the Corps’ examination system, and Xijing persuaded the others to join him.
• The group swept across Mount Fujikasane, killing demons, until they encountered the Hand Demon three days later.
• The Hand Demon trapped several swordsmen with its arms, and Xijing’s Nichirin Blade broke when he tried to fight it.
• Lu You appeared behind the Hand Demon and used Source Breathing-First Form Beginning, slicing through its body and severing its arms.

Lu You cleared Mount Fujikasane of demons and led the surviving candidates in petitioning the Demon Slayer Corps to reform its final selection. Kagaya Ubuyashiki scheduled a Hashira Meeting, and Lu You was invited to attend in sixty-one days.

• Lu You prevented the Hand Demon from regenerating, carried its head out of Mount Fujikasane, and helped the remaining candidates survive the selection.
• Kiriya Ubuyashiki's report told Kagaya Ubuyashiki that Lu You had cleared the mountain and that twenty-four candidates had joined his petition to revise the selection system.
• Gyomei Himejima proposed a Hashira Meeting to discuss the petition, and Kagaya agreed to hold it two months later.
• At the Wisteria Estate, Lu You let the other survivors leave and remained with Xijing, Yamada Takayuki, and Hirakawa Long, who had discussed their Breathing Styles with him as he developed Source Breathing.
• Kiriya received a reply inviting Lu You to attend the Hashira Meeting at Demon Slayer Corps Headquarters in sixty-one days.

Lu You received a black-and-red Nichirin Blade and decided to hunt Upper Rank Six in Yoshiwara to strengthen his standing before the Hashira meeting. After traveling there with three companions, he sensed danger near a cluster of buildings in the Entertainment District.

• Lu You received a black-and-red Nichirin Blade forged by Hagane Ikkyū, then chose Upper Rank Six, Gyūtarō, as his target.
• Lu You brought Xijing, Yamada, and Hirakawa along to help evacuate civilians and traveled toward Yoshiwara, taking other missions on the way.
• During the half-month journey, Lu You refined Source Breathing and reached 32% synchronization with the Yuji Itadori template.
• Lu You and his companions entered Yoshiwara's Entertainment District, where Lu You sensed danger coming from a large cluster of buildings.
• Hirakawa suggested that the group visit a pleasure house.

Lu You waited at Kyogoku House while Hirakawa sent three companions to clear the crowds for a fight later that night. After surrendering his Nichirin Blade to meet the Oiran Warabihime, Lu You faced Daki, who had chosen him for his looks and prepared to attack him.

• Hirakawa told three companions to evacuate the crowds during the second half of the night so he could fight freely.
• Lu You entered Kyogoku House and sensed resentment rising from beneath it while he waited for the streets to grow quieter.
• Lu You agreed to meet the Oiran, handed his Nichirin Blade to Xiaoli, and paid Mitsu for the chance to take Warabihime's test.
• Daki, posing as Warabihime, judged Lu You attractive and opened the adjoining room to meet him.
• Lu You remained alert as he and Daki began their meeting with mutual murderous intent.

Lu You used a staged fire to draw Daki into a fight and overwhelmed her with his speed and strength. After beheading her, he stayed alert for Gyūtarō to appear.

• Lu You taunted Daki by praising Koinatsu, while alarms and fires outside signaled that Xijing's team had evacuated the area.
• Daki spread her sashes beneath the floor and prepared to kill Lu You, but he revealed that he knew she was an Upper Rank and attacked her.
• Lu You blasted Daki through several buildings and pinned all thirteen of her sashes beneath his feet as she tried to flee.
• Lu You cut off Daki's head, while Nishinomiya and a Kasugai Crow watched and recorded the fight from a distance.
• Lu You kept his guard up after Daki was beheaded, expecting Gyūtarō to appear.

Lu You fought Gyutaro and Daki, using his healing ability to overcome Gyutaro’s poison and attacks. He beheaded both demons, while Xijing arrived and watched in shock.

• Gyutaro emerged from Daki and blocked Lu You’s surprise attack with his Blood Demon Art.
• Gyutaro poisoned and wounded Lu You, but Lu You’s injuries began healing, revealing that he could counter the poison.
• Xijing sent Kasugai Crows to summon help after realizing they faced an Upper Rank demon.
• Lu You and Gyutaro clashed fiercely, and Gyutaro severed both of Lu You’s arms before launching Circular Slashing Rotation.
• Lu You regrew his arms, broke through Gyutaro’s attack with Source Breathing, Third Form: Yin-Yang, and beheaded him.
• Lu You reached Daki and beheaded her as she watched his wounds heal, while Xijing arrived and collapsed in disbelief.

Lu You defeated Upper Rank Six Gyutaro while concealing his Cursed Technique from Muzan, then rested as news of the victory spread through the Demon Slayer Corps. The Hashira began returning to headquarters for a meeting.

• Lu You killed Gyutaro, who turned to ash after watching his sister disappear, and gained five percent synchronization value.
• Lu You sent his three underlings flying when they rushed to hug him, then took Xijing's upper garment and returned to Kyogoku House to recover.
• Goto arrived and saw the ruined Entertainment District, where Xijing told him that Lu You was resting.
• Kasugai Crows spread news of the victory, and Tengen Uzui, Giyu Tomioka, Sakonji Urokodaki, Shinobu Kocho, and Kagaya Ubuyashiki reacted to it.
• Kagaya ordered preparations for a Hashira Meeting as the Hashira began returning to headquarters.

The Hashira gathered at Demon Slayer Corps Headquarters for a meeting about changing the Corps’ examination system, with Kagaya Ubuyashiki awaiting Lu You’s arrival. After Sanemi Shinazugawa and Giyu Tomioka argued over the strength of Upper Rank demons, Kagaya announced that Lu You was coming.

• Aoi Kanzaki worried about her identity as a swordswoman who had survived the final examination with help, while Shinobu Kocho reassured her.
• Kagaya Ubuyashiki and Amane discussed the coming meeting and looked forward to meeting Lu You.
• The Hashira arrived one by one, and Kagaya praised Tengen Uzui and Jigoro Kuwajima for helping restore Lu You’s trust in the Corps.
• Sanemi Shinazugawa questioned Giyu Tomioka about Upper Rank demons, and Giyu challenged him to test their strength himself.
• Kagaya stopped the argument and announced Lu You’s arrival as the Hashira saw a figure approaching the gate.