Chapter Summaries

Uesugi Sasuke awakened his Sharingan after a breakthrough in strength and discovered its heightened perception. He told Jigoro Kuwajima it was his family’s Kekkei Genkai, while Zenitsu Agatsuma panicked at the sight of Sasuke’s red eye; Sasuke then walked off to train.

• Uesugi Sasuke opened his newly awakened Sharingan and saw the world in extraordinary detail, including the slowed movements of a flying insect.
• Jigoro Kuwajima sensed Sasuke’s unsettled aura, saw his red eye, and worried that he had been injured.
• Uesugi Sasuke told Jigoro Kuwajima that his eye was a hereditary Kekkei Genkai that awakened with a breakthrough in strength.
• Zenitsu Agatsuma saw Sasuke’s eye, screamed that he was a monster, and hid behind Jigoro Kuwajima.
• Uesugi Sasuke closed and reopened his eye, making it look black again, then walked alone toward the training posts.

Sasuke used his Sharingan to analyze Jigoro Kuwajima’s Thunder Breathing demonstration and reproduced its power-gathering stance perfectly. Kuwajima recognized Sasuke’s ability to see through and copy what others had mastered, while Zenitsu was left shaken by the gap between them.

• Zenitsu avoided Sasuke during the morning and struggled to understand Kuwajima’s lesson on generating power through the waist and abdomen.
• Sasuke activated his Sharingan and analyzed the muscles, breathing, and energy pathways involved in Kuwajima’s Thunder Breathing demonstration.
• Sasuke asked to try and reproduced the First Form’s opening stance and power-gathering technique after studying it once.
• Zenitsu stared in disbelief as Sasuke demonstrated a technique he had failed to learn despite extensive practice.
• Kuwajima called Sasuke’s performance very good and suspected that Sasuke’s eyes had let him see through and plunder the master’s knowledge.

Sasuke combined Thunder Breathing, chakra, and his Sharingan to perfect Chidori and destroy the boulder that had defeated him before. Zenitsu watched in terror, while Jigoro recognized that Sasuke had created a technique unlike any Thunder Breathing he had taught.

• Sasuke went to the waterfall to confront his earlier failure with Chidori, followed secretly by Zenitsu as Jigoro watched from the slope.
• Sasuke used a Thunder Breathing stance and his Sharingan to control and compress the lightning in his palm.
• Sasuke charged the boulder and pierced it with Chidori, keeping his movement under control.
• The boulder fractured and crumbled into powder, leaving Sasuke unharmed and Zenitsu speechless with fear.
• Jigoro recognized Sasuke's attack as a new, exceptionally efficient killing technique and returned to the wooden house.

Jigoro Kuwajima worried that Uesugi Sasuke’s power was driven by vengeance and that he had nothing to protect. After Sasuke rejected the idea of protecting others, Kuwajima halted his Breathing Style training and assigned him a thousand sword swings a day until he understood why he wielded his sword.

• Jigoro Kuwajima watched Uesugi Sasuke practice chakra control in the courtyard and invited him inside for tea.
• Kuwajima told Sasuke about Demon Slayer Corps comrades who had died protecting others despite their weakness.
• Sasuke said the comrades would not have died if they had been strong enough, and Kuwajima replied that their swords had souls.
• Kuwajima asked what Sasuke would do after killing all the demons, leaving Sasuke unable to answer.
• Kuwajima told Sasuke that a swordsman needed something to protect, but Sasuke said he had nothing.
• Kuwajima stopped Sasuke’s Breathing Style training and ordered him to swing his sword one thousand times each day until he understood his purpose.

Uesugi Sasuke endured sword drills before Jigoro Kuwajima ordered him to spar with Zenitsu Agatsuma. After Sasuke repeatedly knocked Zenitsu down, Zenitsu unconsciously unleashed the beginnings of Thunderclap and Flash, leaving Sasuke with a bloody scratch and a new respect for his hidden ability.

• Uesugi Sasuke and Zenitsu Agatsuma practiced sword swings from sunrise to sunset under Jigoro Kuwajima's instruction.
• Jigoro Kuwajima ordered Sasuke and Zenitsu to spar, and Zenitsu reluctantly faced Sasuke.
• Sasuke easily dodged Zenitsu's clumsy attacks and knocked him down repeatedly.
• After Zenitsu collapsed, Sasuke noticed his breathing change and saw him rise into the opening stance of Thunder Breathing.
• Zenitsu vanished with a burst of speed and nearly struck Sasuke, who dodged but received a shallow scratch on his cheek.
• Zenitsu collapsed unconscious, and Sasuke wondered about the power hidden inside him.

Sasuke questioned his master's sword training and practiced chakra control alone at night. Zenitsu secretly brought him rice balls, but fled in fright after Sasuke caught him, leaving Sasuke puzzled as he picked up the food.

• Sasuke dismissed the repeated sword practice as useless and trained his chakra control with a leaf in his room.
• Sasuke heard someone outside his door and opened it, expecting to find his master.
• Sasuke found Zenitsu holding two rice balls and startled him into dropping them.
• Zenitsu panicked, claimed he had only been passing by, and ran away without the rice balls.
• Sasuke wondered why Zenitsu had brought him food and picked up the still-warm rice balls from the floor.

Sasuke slipped away from Mount Momoyama to hunt a demon, choosing Revenge Points and power over his promise to wait until Final Selection. He killed the demon in seconds and returned to the night with 150 Revenge Points, leaving the grave undisturbed.

• Sasuke ate the rice balls left for him, then recalled his impatience with sword training and his desire to become stronger.
• After the system detected a demon at a cemetery east of Mount Momoyama, Sasuke broke his promise to his master and left to hunt it.
• Sasuke found a demon digging into a fresh grave and activated his Sharingan to read its movements.
• Sasuke struck the demon with two kunai, closed in using Thunder Breathing, and cut off its head.
• Sasuke received 150 Revenge Points, cleaned his kunai, restored the grave soil, and disappeared into the night.

Sasuke upgraded his Sharingan to two tomoe after killing enough demons, greatly improving his perception and chakra control. After testing his refined Chidori, he turned his attention to Mount Fujikasane and the Final Selection.

• Sasuke hunted demons on Mount Momoyama at night until his revenge points reached the upgrade threshold.
• Sasuke upgraded his Sharingan and endured intense pain as it awakened with two tomoe.
• Sasuke tested his enhanced vision at a waterfall and saw the precise trajectories of the falling water.
• Sasuke used his improved chakra control to charge and halt a Chidori without losing control.
• Sasuke looked toward Mount Fujikasane and resolved to enter the Final Selection.

After Sasuke returned from killing demons, Jigoro Kuwajima confronted him about abusing his strength and warned him not to become consumed by revenge. Sasuke agreed not to descend the mountain without permission until Final Selection, though Kuwajima remained uncertain where Sasuke’s path would lead.

• Sasuke returned to the dojo at dawn and found Jigoro Kuwajima waiting in his room.
• Sasuke admitted he had gone down the mountain to kill demons, and Kuwajima angrily accused him of treating lives as worthless.
• Kuwajima warned Sasuke that revenge could make him more terrifying than a demon and urged him to use his sword to protect people.
• Sasuke thought of people he had encountered, bowed to Kuwajima, and promised not to go down the mountain without permission until Final Selection.
• Sasuke began his daily practice swings as Kuwajima watched, relieved but still worried about his future.

On the morning of Final Selection, Jigoro Kuwajima gave Sasuke and Zenitsu iron tsuba and urged them to survive. Sasuke left Mount Momoyama for Mount Fujikasane, while Zenitsu tried to follow him.

• Jigoro Kuwajima called Sasuke and Zenitsu to the dojo and gave each a lightning-patterned iron tsuba.
• Kuwajima told the two boys to survive, and Zenitsu broke down and begged to stay behind.
• Sasuke thanked Kuwajima with a formal bow and accepted his permission to go.
• Sasuke picked up his bundle and left the dojo without looking back.
• Zenitsu let go of Kuwajima and hurried after Sasuke as Sasuke descended Mount Momoyama toward Mount Fujikasane.

Sasuke arrived at Mount Fujikasane for the Demon Slayer Corps' Final Selection, where he learned he had to survive seven days among demons. While the other candidates rushed into the mountain, he entered calmly, viewing the trial as a chance to hunt and gain power.

• Sasuke reached Mount Fujikasane and sensed the rotting resentment of demons trapped beneath the wisteria.
• Sasuke spotted Zenitsu Agatsuma among the nervous candidates, then waited alone beneath a wisteria tree.
• Kiriya Ubuyashiki and Hinaki Ubuyashiki explained that the candidates had to survive seven days in the demon-filled area above the wisteria.
• After most candidates entered the mountain, Sasuke followed at his own pace, and the hunt began.

During the Final Selection on Mount Fujikasane, Sasuke hunted demons alone, using his Sharingan and precise attacks to kill them and earn Revenge Points. Kiriya Ubuyashiki and Hinaki spotted his unusual methods and ordered him placed under high-priority observation as he headed toward stronger demons.

• As other candidates fled into the forest, Sasuke walked toward the strongest demonic aura and used his Sharingan to spot a demon hiding behind a tree.
• Sasuke pinned the wolf-shaped demon with three kunai, killed it with his wakizashi, and gained 120 Revenge Points.
• Sasuke continued through the forest, killing demons while ignoring the candidates’ cries for help.
• At the mountain’s foot, Kiriya Ubuyashiki and Hinaki watched the live feeds and recognized Sasuke’s precise, unconventional hunting style.
• Kiriya ordered the corps to classify intelligence on Sasuke at the highest level and prioritize observing him.
• Sasuke stood atop a tree and looked toward the darker forest, where stronger demons—and more points—awaited.

Sasuke grew impatient with the weak demons on Mount Fujikasane and used the Great Fireball Technique to destroy three demons attacking candidates. The Corps monitors witnessed his power and decided to send the footage to the Master, believing Sasuke might be more important than they had imagined.

• Sasuke sensed a dense demonic aura to the east and headed toward it, but cries for help diverted him to a nearby clearing.
• Sasuke found three demons torturing two candidates and formed hand seals as the candidates neared defeat.
• Sasuke unleashed the Great Fireball Technique, incinerating all three demons and leaving the surviving candidate stunned.
• Sasuke gave the surviving candidate and his unconscious companion a cold glance, then disappeared into the forest.
• Kiriya ordered the Corps monitors to encrypt the footage and send it to the Master.

Sasuke defeated the Rock Demon with Lightning Release: Chidori after discovering that ordinary sword strikes could not pierce its body. In the monitoring room, Kiriya ordered Sasuke’s code name changed and his battle footage classified as top secret.

• Sasuke found the Rock Demon beside a stream valley, surrounded by the remains of slain selection candidates.
• Sasuke’s sword could not harm the Rock Demon, so he used Lightning Release: Chidori to pierce its chest and kill it.
• Kiriya watched the battle footage and ordered Sasuke’s code name changed to “One Who Commands Lightning and Fire.”
• Kiriya ordered all footage of Sasuke’s battles classified as top secret and reported to the Master.

On the fourth night of selection, Sasuke found the Hand Demon, whose resentment toward Kuwajima and memories of eating his disciples stirred Sasuke’s anger. The Hand Demon caught Sasuke’s scent and prepared to identify him as another of Kuwajima’s disciples.

• Sasuke killed another weak demon and grew bored with the monotonous slaughter.
• Sasuke followed a foul stench and powerful, resentful aura into a clearing, where he found the Hand Demon.
• The Hand Demon toyed with a dead candidate and boasted about killing Kuwajima’s disciples, including a girl in a fox mask.
• Sasuke’s anger at the Hand Demon’s insults rose as his two tomoe spun in his right eye.
• The Hand Demon smelled Sasuke, recognized Kuwajima’s scent on him, and asked which of the old man’s disciples he was.

Sasuke's memories of his family, Master Kuwajima, and Zenitsu fueled an overwhelming killing intent as the Hand Demon taunted him. He charged through the demon's attack and began cutting off its arms, leaving the Hand Demon unable to follow his movements.

• The Hand Demon bragged about eating Kuwajima's disciples and imitated their dying cries, including those of a girl wearing a Fox Mask.
• Sasuke's memories and anger converged into a chilling killing intent that astonished the Hand Demon.
• The Hand Demon attacked Sasuke with hundreds of arms from every direction.
• Sasuke used his Two-Tomoe Sharingan to weave through the arms and sever them with his black Wakizashi.

Sasuke used his two-tomoe Sharingan to read the Hand Demon's attacks and began cutting away its arms to expose its neck. He left the demon terrified, with more than half its arms severed and the hunt reversed.

• The Hand Demon increased its attacks, but Sasuke anticipated every strike with his Sharingan.
• Sasuke decided to cut through the arms protecting the Hand Demon's neck and severed the first one with his Wakizashi.
• Sasuke charged into the mass of arms, cutting them apart faster than the Hand Demon could regenerate them.
• The Hand Demon panicked as Sasuke severed more than half its arms in a dozen breaths.
• Sasuke stopped atop the pile of severed arms and fixed his gaze on the terrified Hand Demon.

Sasuke burned through the Hand Demon's defensive ball of flesh with the Dragon Fire Technique, then charged his wakizashi with lightning to finish it. The Hand Demon gave up as Sasuke raised the electrified blade.

• The Hand Demon sealed its neck inside a ball of its arms and flesh, hoping to endure until dawn.
• Sasuke used the Dragon Fire Technique to surround the ball with flames and force the Hand Demon to burst free in agony.
• Sasuke seized the opening and gathered lightning in his left hand.
• Sasuke channeled the lightning into his pitch-black wakizashi, forming an immature Chidori Sharp Spear.
• The Hand Demon abandoned resistance as Sasuke raised the lightning-wreathed blade.

Sasuke killed the Hand Demon with Chidori Sharp Spear after using Body Flicker Technique to bypass its defenses. He paid his respects to the departed disciples and left the mountain.

• The Hand Demon tried to flee and shield its neck as Sasuke prepared his attack.
• Sasuke vanished with Body Flicker Technique and appeared above the Hand Demon.
• Sasuke struck with Chidori Sharp Spear, severing the Hand Demon's neck and turning it to ash.
• Sasuke gained 1,500 Revenge Points, bringing his total to 3,950.
• Sasuke bowed toward the broken fox masks, then headed down the mountain.

Sasuke survived the final selection on Mount Fujikasane and completed the Demon Slayer Corps’ entry procedures, drawing the Master’s interest because of his unusual ninjutsu. With the trial over and his system mission complete, he set out toward the battles ahead.

• Sasuke returned from the mountain at dawn as one of five survivors, alongside Zenitsu Agatsuma and Kanao Tsuyuri.
• Kiriya Ubuyashiki and Hinaki welcomed the survivors and oversaw the distribution of uniforms, ranks, and ore for Nichirin Blades.
• A large, unusually sharp-eyed Kasugai Crow chose Sasuke as its master.
• Kiriya told Sasuke that Kagaya Ubuyashiki was interested in seeing his ninjutsu firsthand.
• Sasuke completed his core mission, received a boost to his template proficiency, and left the trial focused on the demons and Muzan Kibutsuji ahead.