Arc 4The Thunder Hashira

Sasuke killed Rui, earned the Hashira’s recognition by defeating the Information Demon with Kirin, and was formally named the Thunder Hashira. At the Butterfly Mansion, he trained Tanjiro and Inosuke, noticed Zenitsu’s hidden talent, and agreed to work with Shinobu on a poison capable of killing Muzan, on his own terms.

  • Sasuke killed Rui, and the Master ordered Tanjiro, Nezuko, and Sasuke escorted to headquarters, where Sasuke defended Nezuko before the Hashira and Kagaya named him a Hashira-level Candidate.
  • Sasuke accepted a mission to find the Information Demon in the City of Wind Chimes and traced its network of altered messages to the Wind Chime House.
  • Sasuke overwhelmed the Information Demon with Chidori Stream, then summoned Kirin from the storm clouds and annihilated it.
  • After the Hashira heard reports of Kirin, Kagaya formally named Sasuke the Thunder Hashira, and Sasuke visited Jigoro Kuwajima to tell him he had inherited the position.
  • At the Butterfly Mansion, Sasuke demonstrated how Tanjiro could improve his Constant Flux and defeated Inosuke by outmaneuvering him.
  • Sasuke used his Sharingan to discover that Zenitsu unconsciously maintained Total Concentration: Constant and recognized his natural affinity for lightning.
  • Shinobu found that Sasuke’s body could contain immense energy and poison, and proposed developing a toxin to kill Muzan.
  • Sasuke used genjutsu to make Kanao question her reliance on her coin, then agreed to Shinobu’s poison plan on condition that she share all her research and the complete formula.
Chapters 76–100 Vol. 1 Read

Ch. 76Chidori Sharp Spear, the lightning spear that prevented regeneration

Sasuke used Chidori Sharp Spear to pierce Rui’s true body and prevent his regeneration. As Rui’s life faded, Giyu and Tanjiro stared at the overwhelming power Sasuke had displayed.

  • Sasuke formed a several-meter spear of lightning from his Wakizashi and called it Chidori Sharp Spear.
  • Giyu Tomioka and Tanjiro watched in shock as Sasuke hurled the lightning spear at Rui.
  • The spear pierced Rui’s true body and pinned him to a tree while his fleeing body collapsed and disintegrated.
  • The lightning paralyzed Rui and burned through his demon blood, preventing his chest wound from regenerating.
  • Rui realized he had never stood a chance against Sasuke as Giyu Tomioka reflected on the enormous gap between them.

Ch. 77The end of Lower Rank Five, witnessed by two Hashira

Sasuke killed Lower Rank Five Rui, whose final memories restored his understanding of his parents’ love. Giyu Tomioka and Shinobu Kocho witnessed Sasuke’s unfamiliar powers and recognized him as an anomaly in the Demon Slayer Corps.

  • Rui remembered his human past and realized his parents had loved him before he killed them.
  • Sasuke pulled the lightning-charged Wakizashi from Rui, then decapitated him as Rui saw his parents reaching for him.
  • Rui died and turned to ash, ending Lower Rank Five.
  • Giyu Tomioka watched Sasuke’s battle and concluded his flames and lightning were not a Breathing Style.
  • Shinobu Kocho arrived after the fight and was shocked by Sasuke’s power.
  • Sasuke looked toward Tanjiro, Giyu Tomioka, and Shinobu Kocho with his cold gaze.

Ch. 78Butterfly and water, a clash over demons

After Sasuke killed Rui, Shinobu Kocho tried to attack Nezuko, but Giyu Tomioka blocked her and protected Tanjiro. A Messenger Crow then ordered Tanjiro, Nezuko, and Uesugi Sasuke to be escorted to Corps headquarters, where a new confrontation awaited.

  • Sasuke killed Rui and watched as Shinobu Kocho confronted Tanjiro over carrying Nezuko.
  • Shinobu rushed to stab the box holding Nezuko, but Giyu blocked her and told Tanjiro to run.
  • Shinobu and Giyu clashed over whether Nezuko should be spared, while Sasuke watched without intervening.
  • A Messenger Crow delivered the Master’s order to escort Tanjiro, Nezuko, and Uesugi Sasuke to headquarters.
  • Sasuke realized that the journey to headquarters would bring further trouble.

Ch. 79The Master's Orders, the Misfits Summoned

After the Master ordered Tanjiro, Nezuko, and Sasuke escorted to headquarters, Sasuke anticipated that the central conflict was beginning. In the Infinity Castle, Muzan studied Rui’s memories and decided Sasuke was a major threat who needed to be killed before he grew stronger.

  • Sasuke stepped forward and released a killing intent that made Shinobu Kocho and Giyu Tomioka freeze.
  • A Messenger Crow announced the Master’s order to escort Tanjiro Kamado, Nezuko, and Uesugi Sasuke to headquarters under guard.
  • Tanjiro felt confused and uneasy but gained hope, while Sasuke withdrew his killing intent and considered what awaited him at headquarters.
  • Muzan Kibutsuji reviewed Rui’s final images of Sasuke’s powers and recognized them as something beyond any Breathing Style he knew.
  • Muzan marked Sasuke as a threat of the highest level and resolved to find and kill him before he fully matured.

Ch. 80Trial at Headquarters, the oppressive presence of the Nine Hashira

Tanjiro woke bound in the Corps headquarters courtyard, where all Nine Hashira gathered to judge him for harboring Nezuko. Sasuke silently studied their abilities with his Sharingan until Sanemi confronted him about killing Lower Rank Five and using sorcery.

  • Tanjiro woke injured and bound before the Nine Hashira, who debated executing him for harboring a demon.
  • Obanai challenged Giyu over protecting Tanjiro and noted that Giyu and Sasuke had stopped Shinobu from acting.
  • Sasuke watched the Hashira with his Sharingan and assessed their strengths, judging their power unimpressive.
  • Sanemi demanded to know how Sasuke had killed Lower Rank Five and what sorcery he was using.

Ch. 81The Wind Hashira's Provocation, the Halted Blade

At the Hashira meeting, Sanemi Shinazugawa attacked Nezuko’s box to test whether she would succumb to blood, while Tanjiro was restrained. Uesugi Sasuke stopped Sanemi just before he could lure Nezuko out, insisting she would not eat humans.

  • Sanemi Shinazugawa challenged Sasuke over his reported victory against Lower Rank Five, then turned his attention to Tanjiro and Nezuko’s box.
  • Sanemi stabbed the box with his Nichirin Blade, and Tanjiro charged at him in fury before Obanai Iguro pinned him to the ground.
  • Sanemi cut his own arm to offer Nezuko his rare blood, while the Hashira watched and Tanjiro struggled helplessly.
  • Uesugi Sasuke seized Sanemi’s bleeding wrist before it reached the box and told him that Nezuko would not eat humans.

Ch. 82The Sharingan's Testimony, Insight Beyond the Sense of Smell

Sasuke restrained Sanemi and used his Sharingan to explain why he believed the demon in the box would not attack humans. The Hashira remained doubtful, but Sasuke’s overwhelming strength gave them pause before the Master arrived.

  • Sasuke held Sanemi’s wrist and insisted the demon in the box would not eat humans.
  • Obanai, Kyojuro, and Shinobu questioned Sasuke’s claim and demanded evidence.
  • Sasuke said his eyes could see the demon’s calm, protective will and found no desire to attack humans.
  • Sanemi rejected Sasuke’s explanation, but Sasuke tightened his grip and flung him back several steps.
  • The Hashira reconsidered Sasuke’s claim after witnessing his strength, then an announcement declared that the Master had arrived.

Ch. 83The weight of Lower Rank Five, an overwhelming feat

At the Hashira Meeting, Kagaya Ubuyashiki confirmed his approval of Tanjiro and Nezuko, but the Hashira objected and questioned Sasuke’s claims about his eyes. Sasuke revealed evidence that he had killed Lower Rank Five Rui alone, leaving the Hashira stunned by a feat that could qualify him to stand among them.

  • Kagaya Ubuyashiki arrived at the meeting, and the Hashira bowed to welcome him.
  • Sanemi Shinazugawa asked Kagaya to deal with Tanjiro, but Kagaya said he had already approved Tanjiro and Nezuko.
  • Kyojuro Rengoku, Tengen Uzui, and other Hashira objected to a Demon Slayer traveling with a demon.
  • Obanai Iguro challenged Sasuke’s claims about his eyes and questioned his ability to judge Nezuko.
  • Sasuke showed a bloodstained cloth bearing Rui’s pattern and declared that he had killed Lower Rank Five alone.
  • The Hashira fell silent, shocked that Sasuke might have already accomplished the feat required to join their ranks.

Ch. 84Oyakata-sama's verdict, the Shippuden template unlocked!

At the Hashira Meeting, Sasuke’s victory over Lower Rank Five earned him the title of Hashira-level Candidate, while Tanjiro was tasked with proving himself by defeating a Twelve Kizuki. After the meeting, Sasuke unlocked the Early Shippuden Sasuke Template and gained a vast increase in chakra and new abilities.

  • Sasuke revealed that he had killed Lower Rank Five Rui single-handedly, supporting the case for Nezuko and Tanjiro.
  • Kagaya Ubuyashiki settled the Kamado siblings’ trial and told Tanjiro to defeat a Twelve Kizuki to earn the Corps’ recognition.
  • Kagaya appointed Uesugi Sasuke a Hashira-level Candidate and said he could become Thunder Hashira after completing a Hashira-level mission.
  • As Sasuke left the meeting, the system unlocked the Early Shippuden Sasuke Template and flooded him with increased chakra, techniques, and Kusanagi Sword memories.

Ch. 85A Hashira's Trial, Vanishing Intelligence

After unlocking his Early Shippuden Sasuke template, Sasuke received a mission to hunt an Information Demon that had disrupted the Demon Slayer Corps' intelligence network. The mission would serve as his trial to prove he was qualified to become a Hashira, and he set out for the City of Wind Chimes.

  • Sasuke awakened with greatly increased chakra and new knowledge of Chidori Stream, the Kusanagi Sword, and genjutsu.
  • Kagaya Ubuyashiki told Sasuke that a five-person squad and an investigating Hinoto-ranked member had disappeared while pursuing an Information Demon.
  • Ubuyashiki explained that the demon stole and corrupted intelligence while hiding in a crowded city, and assigned Sasuke to find and kill it.
  • Sasuke accepted the mission as a trial for Hashira rank and learned that his destination was the City of Wind Chimes.

Ch. 86A City in Disguise, a Web of Lies

Sasuke investigated the City of Wind Chimes by disguising himself as several townspeople and discovered that a demon was feeding on and corrupting information. He traced the altered messages to the Wind Chime House, the city's information relay station.

  • Sasuke found that the crowds and bustle of the city concealed demons and made conventional tracking methods ineffective.
  • Sasuke used the Transformation Technique to disguise himself as a rickshaw puller and heard reports of messages being changed.
  • Sasuke disguised himself as a night watchman and investigated places where information passed through the city, finding blank letters and false reports.
  • Sasuke concluded that the demon fed on information and mapped the locations where messages had been altered.
  • Sasuke identified the Wind Chime House as the center of the city's web of lies.

Ch. 87The Demon's Shadow Beneath the Wind Chimes, the True Face of the Blood Demon Art

Sasuke infiltrated the Wind Chime House and found the Information Demon’s hidden underground library. The demon revealed its ability to record and alter information, then attacked Sasuke with a storm of living paper.

  • Sasuke used his Sharingan to read the wind and chimes, slipping into the Wind Chime House without setting off its alarms.
  • Sasuke found a concealed passage behind a wall on the tower’s top floor and entered the underground study.
  • The Information Demon recognized Sasuke and declared him a valuable addition to its collection.
  • The Information Demon showed images of Sasuke’s past battles and claimed it could hear, see, record, copy, and alter information.
  • The Information Demon sent countless sheets of living paper flying at Sasuke.

Ch. 88A trap of words, an unpredictable attack

In the Underground Library, Sasuke dodged Paper Man’s paper storm and discovered that the demon had gathered intelligence on his past and could predict his known techniques. Sasuke unleashed Chidori Stream, a technique Paper Man had not anticipated.

  • Sasuke used his Sharingan and chakra-infused Wakizashi to evade and deflect Paper Man’s storm of paper blades.
  • Paper Man revealed details about Sasuke’s family, training, and techniques, showing that he had collected intelligence on him.
  • Sasuke attacked with Fire Release: Dragon Fire Technique, but Paper Man used a paper tornado to disperse the flames.
  • Paper Man predicted Sasuke’s next attack and urged him to become a collectible, but Sasuke responded by releasing Chidori Stream around his body.

Ch. 89New Technique: Chidori Stream, the Inescapable Lightning Net

Sasuke used Chidori Stream to overwhelm the Information Demon’s predictions and devastate its paper body. He left the demon crippled on the basement floor and mocked its attempt to uncover his secrets.

  • The Information Demon failed to predict Chidori Stream, which spread lightning across the entire basement.
  • Sasuke’s lightning scorched the demon’s paper body and overwhelmed its information-based abilities.
  • The Information Demon fell to the ground, badly damaged and unable to move, but still alive.
  • Sasuke stepped on the demon’s face and taunted it for trying to pry into his secrets.

Ch. 90An Invitation from the Thunderstorm, the Final Stage

Sasuke destroyed the Information Demon's body, but the demon escaped as scraps of paper and began rebuilding itself. Sasuke summoned the storm's power and raced toward the city's clock tower, preparing to finish the hunt there.

  • Sasuke crushed the Information Demon’s information-based body, leaving it to scatter into scraps of paper.
  • The Information Demon gathered its scraps in an alley and saw Sasuke watching from the Wind Chime House rooftop.
  • Sasuke fired a thin flame into the thunderclouds, causing them to churn and gather power.
  • Sasuke welcomed the demon to his stage and raced toward the city's ancient clock tower for their final confrontation.

Ch. 91The Lightning-Summoning Technique, the Kirin's Roar!

The black-haired boy stood atop the clock tower and summoned a Kirin from the storm, revealing overwhelming control over natural lightning. The Information Demon understood that it could neither analyze nor escape the power about to strike it.

  • The rain weakened the Information Demon, which tried to flee the city while watching the boy on the clock tower.
  • The boy raised his left hand toward the thunderclouds, and lightning gathered into a vast vortex.
  • A Kirin formed from natural lightning and fixed its gaze on the Information Demon.
  • The Information Demon realized the boy commanded the sky’s power and could only wait helplessly for the attack.

Ch. 92An instant of annihilation, the Hashira struck speechless

Sasuke annihilated the Information Demon in City of Wind Chimes with Kirin, leaving a vast vitrified crater and stunning witnesses across the region. At Demon Slayer Corps headquarters, the Hashira heard the reports and fell silent as Kagaya Ubuyashiki called Sasuke a true god of thunder.

  • Sasuke brought his raised hand down and summoned Kirin, which struck the Information Demon and left no trace of it.
  • The blast’s light, shock wave, and sound overwhelmed the Kakushi watching from outside City of Wind Chimes.
  • A Kasugai Crow crashed into Kagaya Ubuyashiki’s courtyard and reported that the Thunder Hashira had annihilated the demon with divine punishment.
  • The Nine Hashira gathered for an emergency meeting and listened to the frightened reports of the destruction.
  • Giyu Tomioka and Shinobu Kocho realized Sasuke’s power exceeded what they had witnessed on Mount Natagumo.
  • Kagaya Ubuyashiki called Sasuke a true god of thunder, and the Hashira remained speechless.

Ch. 93The title of Thunder Hashira, an undisputed succession

Kagaya Ubuyashiki appointed Uesugi Sasuke the new Thunder Pillar after the Hashira learned of his overwhelming power. The Hashira accepted the decision, and Sasuke became the Demon Slayer Corps' undisputed Thunder Hashira.

  • The Hashira reacted with shock and unease to reports of Uesugi Sasuke summoning lightning and destroying the Information Demon with Kirin.
  • Sanemi Shinazugawa, Gyomei Himejima, Tengen Uzui, Obanai Iguro, Shinobu Kocho, and Giyu Tomioka questioned how Sasuke's power fit among them.
  • Kagaya Ubuyashiki urged the Hashira to accept the power that could help end the Corps' thousand-year war against Muzan.
  • Kagaya Ubuyashiki declared Uesugi Sasuke the new Thunder Pillar and asked whether anyone objected.
  • Sanemi Shinazugawa knelt first, and the other Hashira followed, voicing no objections.
  • Kagaya Ubuyashiki formally named Uesugi Sasuke the Demon Slayer Corps' undisputed Thunder Hashira.

Ch. 94A Master's Legacy, Solace on Mount Momoyama

After becoming the Thunder Hashira, Uesugi Sasuke returned to Mount Momoyama to show Jigoro Kuwajima that he had inherited his position. He left with his master’s acceptance and a new responsibility to carry the legacy forward.

  • Uesugi Sasuke visited Mount Momoyama after accepting his Hashira appointment.
  • Sasuke found Zenitsu Agatsuma resisting training while Jigoro Kuwajima scolded him.
  • Sasuke put on the Thunder Hashira’s haori and bowed before Kuwajima.
  • Sasuke told Kuwajima that he had inherited his position.
  • Kuwajima accepted Sasuke’s standing and expressed relief and pride as Sasuke departed.

Ch. 95A Hashira's return, a subtle tension at the Butterfly Mansion

Sasuke returned to the Butterfly Mansion wearing the thundercloud haori that marked him as a Hashira, and the residents reacted to his changed status. Shinobu welcomed him back and asked to examine him and his chakra after hearing about his use of Kirin.

  • Sasuke arrived at the Butterfly Mansion exhausted from using Kirin and headed toward an empty room to rest.
  • Aoi Kanzaki and Sumi, Kiyo, and Naho recognized Sasuke and reacted with awe to his Hashira haori.
  • Zenitsu Agatsuma and Inosuke Hashibira came out of their room, and Inosuke challenged Sasuke for his haori.
  • Tanjiro noticed that Sasuke’s status had created a new sense of distance between him and the others.
  • Shinobu Kocho welcomed Sasuke as the Thunder Hashira and asked to examine his body and chakra.

Ch. 96Guidance under the Sharingan: Water Breathing Dissected

After recovering from using Kirin, Sasuke watched Tanjiro train and used his Sharingan to identify flaws in Tanjiro’s Water Breathing. He demonstrated a precise Constant Flux and left Tanjiro with a new understanding of how to control his body and energy.

  • Shinobu Kocho showed interest in studying Sasuke, but he refused and walked away.
  • A few days later, Sasuke found Tanjiro, Zenitsu, and Inosuke practicing at the Butterfly Mansion training ground.
  • Sasuke told Tanjiro to attack him with his strongest Water Breathing technique, and Tanjiro used Constant Flux.
  • Sasuke used his Sharingan to point out the flaws in Tanjiro’s movements and said the attack was full of openings.
  • Sasuke demonstrated a precise Constant Flux with a wooden sword and explained that combat depended on making the most of one’s energy.
  • Tanjiro reflected on Sasuke’s demonstration and began to grasp something about controlling his body.

Ch. 97A beast's instincts and a ninja's skills

Sasuke defeated Inosuke by evading his charges, using deception, and striking from behind, leaving Inosuke confused by a style of fighting beyond brute force. Inosuke repeated Sasuke’s words about hunting and began to reconsider what fighting meant.

  • Tanjiro reflected on Sasuke’s precise control, while Inosuke dismissed his skill and challenged him to fight.
  • Inosuke charged Sasuke with his swords, but Sasuke evaded the blows and struck his sword-wielding wrist.
  • Inosuke lunged with his boar mask, hit a log in Sasuke’s place, and found Sasuke behind him with a wooden sword at his neck.
  • Sasuke told Inosuke that fighting involved concealment, deception, and a fatal strike, then left the training ground.
  • Inosuke stood bewildered and repeated Sasuke’s word, “Hunting,” as he contemplated his defeat.

Ch. 98Lightning's Resonance, a Slumbering Talent

Sasuke went to silence Zenitsu’s noisy crying, but discovered that Zenitsu unconsciously maintained Total Concentration: Constant while asleep and possessed a rare natural affinity for lightning. The chapter left Sasuke recognizing the talent hidden beneath Zenitsu’s fear as he quietly returned to his room.

  • Sasuke’s meditation was interrupted by Zenitsu wailing about having to go on another mission.
  • Sasuke went to Tanjiro and Zenitsu’s room to stop Zenitsu, but found that Zenitsu had cried himself to sleep.
  • Sasuke used his Sharingan to see Zenitsu unconsciously maintaining a perfect state of Total Concentration: Constant.
  • Sasuke sensed that Zenitsu’s natural golden aura resonated with his own Lightning Release chakra.
  • Sasuke understood that fear suppressed Zenitsu’s talent, and that his body had instinctively mastered Thunderclap and Flash; he then silently left.

Ch. 99Shinobu's Body and the Butterfly's Poison: A Draft

Shinobu Kocho examined Sasuke Uesugi after his use of Kirin and discovered that his cells had extraordinary vitality and could contain immense energy and poison. She proposed combining his body with her Wisteria Poison to create a weapon capable of killing Muzan Kibutsuji.

  • Sasuke agreed to let Shinobu Kocho examine his body and provide a blood sample.
  • While Shinobu studied the sample, Sasuke sensed that his chakra was recovering quickly after Kirin.
  • Shinobu discovered that Sasuke’s cells were unusually active and possessed an unfamiliar energy circulation system.
  • Shinobu concluded that Sasuke’s body could contain and assimilate immense energy and deadly poison.
  • Shinobu proposed using Sasuke as a carrier for a powerful toxin and working together to create a technique that could kill Muzan Kibutsuji.

Ch. 100Enlightenment through Genjutsu, the Choice of the Heart's Coin

Sasuke accepted Shinobu Kocho’s plan to make his body a vessel for a powerful poison, but insisted on controlling the process and learning everything about it. After using genjutsu to force Kanao Tsuyuri to confront her dependence on her coin, he returned to the pharmacy to begin cooperating with Shinobu.

  • Sasuke considered the risks of Shinobu Kocho’s poison plan and concluded that poison should be a weapon he controlled, not something that made him a passive vessel.
  • Sasuke watched Kanao Tsuyuri rely on her coin, then used genjutsu to trap her in a terrifying illusion and prevent her from reaching it.
  • Sasuke asked Kanao what she would rely on if she could not toss her coin, leaving her questioning her dependence on it.
  • Sasuke told Shinobu Kocho that he agreed to her plan but demanded to see all her research data and the complete poison formula.
  • Shinobu Kocho welcomed Sasuke’s conditions and invited him into the pharmacy to begin creating the poison.
Arc 4 of 13