Chapter Summaries

Osamu Dazai settled into life as a Jujutsu High teacher while secretly arranging for Toji Zenin to target Riko Amanai and test Suguru Geto and Satoru Gojo. He told Toji to retreat if he could not defeat them, then went to bed as Toji wondered whether Dazai had already foreseen the outcome.

• Osamu Dazai joined Satoru Gojo, Suguru Geto, and Shoko Ieiri for drinks, and Teacher Yaga punished them for skipping class.
• Osamu Dazai learned that Suguru Geto and Satoru Gojo had been assigned to protect Riko Amanai, though he was not on the mission roster.
• Suguru Geto asked Osamu Dazai who had been sent after Riko Amanai, and Dazai identified Toji Zenin as the Sorcerer Killer.
• Osamu Dazai confirmed to Toji Zenin that he was testing the two sorcerers and told him to leave if he realized he could not beat them.
• Toji Zenin agreed that not being strong enough was the original sin, while Dazai turned off his phone and went to bed.

Dazai arranged for Toji Zenin to bring Riko Amanai to safety, then confronted the shaken Suguru Geto at Jujutsu High. He dismissed Geto’s arguments and told him he was not strong enough yet, leaving their disagreement unresolved.

• Toji Zenin brought Riko Amanai to Dazai, who admitted he had sent Toji to stop Gojo and Geto because he feared Riko might refuse assimilation.
• Toji Zenin left with a backup recording device, while Dazai carried Riko Amanai away and settled her somewhere safe.
• Dazai returned to Jujutsu High at dusk and found Suguru Geto exhausted near his dormitory window.
• Suguru Geto insisted that Riko Amanai had been an individual before she was the Star Plasma Vessel, and Dazai accepted her name but rejected his argument.
• Dazai told Suguru Geto that others could not truly understand his pain and that he still had to remember the mission and write his report.
• Dazai warned Suguru Geto that his firm convictions made him easy to shatter, then declared that he would not treat him as an equal because he was not strong enough yet.

Osamu Dazai visited Tengen and used his blood to halt the evolution of Tengen’s cursed technique for thirty days, while promising to find another Star Plasma Vessel. At dawn, he took Satoru Gojo and Suguru Geto away from Jujutsu High for a Social Practice Class, leaving a note that made Teacher Yaga furious.

• Osamu Dazai told Tengen that his blood could temporarily prevent cursed spirits from changing, then cut his wrist and let the blood fall on Tengen to stop the evolution of his cursed technique for thirty days.
• Tengen questioned Osamu Dazai about Toji Zenin, Riko Amanai, and his motives, and Osamu Dazai said Riko Amanai was useful and promised to find another Star Plasma Vessel.
• Osamu Dazai left Tengen, reflecting that he cared about Satoru Gojo and Suguru Geto and intended to deal with their future decisively.
• Near dawn, Osamu Dazai found Satoru Gojo and Suguru Geto sparring and invited them to join his Social Practice Class.
• Osamu Dazai led Satoru Gojo and Suguru Geto down the mountain, while Teacher Yaga discovered his note and shouted his name.

Osamu Dazai, Satoru Gojo, and Suguru Geto traveled to a remote village to rescue two young jujutsu sorcerers who were being abused and blamed for the village’s misfortunes. The girls accepted Dazai’s offer to leave, while Geto struggled to restrain his anger at the villagers.

• Osamu Dazai told Satoru Gojo and Suguru Geto that the two girls were jujutsu sorcerers and might not survive in their hostile village.
• Dazai offered money to an old woman in exchange for the girls, and she led the group to a filthy shack where they were caged.
• The villagers called the girls monsters and demanded that they die, while Suguru Geto clenched his hands in anger.
• Dazai scattered the money to distract the villagers and gently asked the girls to leave with him.
• The two girls took Dazai’s hands, and he led them out as Satoru Gojo went with Geto to bring the car around.

Osamu Dazai rescued Nanako and Mimiko from their abusive village and brought them toward Jujutsu High, while Suguru Geto struggled with the collapse of his beliefs. Dazai challenged Geto to choose his own path and resolved to stop him from defecting, partly to spare Teacher Yaga pain.

• Dazai comforted Nanako and Mimiko, learned their names, and brought them away from the villagers.
• Dazai cleaned the girls' wounds, gave them fresh clothes, and told them they were now part of his family.
• As they drove, Geto admitted that his beliefs might have shattered and questioned whether protecting people meant anything.
• Dazai reminded Geto that the world was not simply black and white and warned that he and Gojo would stop him if he turned against ordinary people.
• Geto said he no longer understood his former principles, and Dazai gave him Mint Candy while leaving him time to think.
• Dazai decided he would intervene if Geto tried to defect, partly because he did not want Teacher Yaga to suffer.

After bringing Nanako and Mimiko to Shoko Ieiri, Dazai refused to take responsibility for raising them and attempted suicide by cutting his wrist. Teacher Yaga found and treated him, leaving Dazai alive but troubled by Yaga’s continued concern.

• Dazai sent Nanako and Mimiko with Suguru Geto and Satoru Gojo to Shoko Ieiri, then wandered Jujutsu High alone.
• Dazai decided he should not raise the girls and cut his wrist, hoping to bleed to death on a balcony.
• Teacher Yaga found Dazai, stopped the bleeding, and brought him to his dorm room to treat the wound.
• After Teacher Yaga left, Dazai returned to bed and wondered why Yaga never seemed disappointed in him.
• Dazai slept badly, woke at three in the morning, removed his bandages, and searched for fresh ones before putting on his usual smile.

The narrator used a Grade 1 mission as cover to meet Toji Zenin and collect several fingers, while considering how to approach Brain and protect Teacher Yaga after the narrator’s death. The narrator returned to the Assistant Supervisor’s car and decided to replace him.

• The narrator left the school for a distant Grade 1 mission, reflecting on the families the narrator had wiped out and the difficulty of reaching Brain.
• The narrator redirected the Assistant Supervisor to a crab meat restaurant, where Toji Zenin handed over a box of fingers and left to cook for his wife and child.
• The narrator considered eliminating the Jujutsu Society Higher-Ups and arranging for Teacher Yaga’s safety after the narrator died.
• The narrator returned to the car and decided to replace the Assistant Supervisor, sparing him because he had survived several extra months.

Dazai returned from a mission and invited Suguru Geto to drink on the anniversary of Nozomi and Sōsuke’s deaths, drawing him into a frank conversation about his grief and plans. At the izakaya, Dazai challenged Geto’s belief that he had to bear the burden of protecting ordinary people, while Geto remained uncertain about his path.

• Dazai destroyed a cursed spirit, drove the injured Assistant Supervisor to the infirmary, and left him there after treating his wounds.
• Dazai found Suguru Geto awake and invited him to an izakaya, saying it was the anniversary of Nozomi and Sōsuke’s deaths.
• Dazai changed into his old black coat and drove Geto to the izakaya, where Geto asked whether Dazai had invited him because he was troubled.
• Dazai confronted Geto about his regret over failing to protect Miss Riko Amanai and his shattered convictions, and Geto admitted he had considered defecting and taking drastic action.
• Geto asked whether Dazai would stop him from choosing his own path, and Dazai said he would while questioning Geto’s burden to protect ordinary people.

Dazai confronted Suguru Geto about his plan to defect and warned him that he and Satoru were being manipulated in a plot involving Tengen. Geto agreed to become stronger before pursuing his ideals, while Dazai secretly planned counseling and new courses at Jujutsu High to change his outlook.

• Dazai told Geto he could kill, imprison, or otherwise stop him from defecting, then explained that an unknown being had manipulated Geto, Satoru, Riko Amanai, and Tengen.
• Dazai argued that Geto lacked the strength and influence to change the world and warned that his plan to eliminate ordinary people would bring uncertain consequences.
• Geto decided to become stronger before attempting to pursue his plan, and Dazai sent Satoru the details of their conversation.
• Dazai planned to have Yaga arrange psychological support for Geto and introduce political science and law courses at Jujutsu High.
• Dazai considered how to expose ordinary people to jujutsu sorcerers and have Geto bring the villagers who had harmed him to justice.

Osamu Dazai carried out his final plan, trapping Kenjaku inside a burning barrier and shooting himself as the fire spread. As he slipped toward death, he began to question his identity and realized he had forgotten important people from his past.

• Osamu Dazai visited Toji Zenin and gave him a page from the Book, asking him to send his recordings to Suguru Geto and Satoru Gojo in three days.
• Osamu Dazai went to the Jujutsu Higher-Ups and confronted Kenjaku, trapping him inside a barrier before setting the building ablaze.
• Osamu Dazai reflected on the people whose remains he had returned and the students and friends he had helped before deciding he had no regrets.
• Osamu Dazai shot himself as the fire consumed the building, believing the Book and Sukuna's Finger would be destroyed with him.
• Osamu Dazai struggled to remember people from his past and questioned whether he was truly Osamu Dazai.

Osamu Dazai died in the burning barrier after pursuing the death he had chosen, while briefly regretting that he had not found a reason to live. After the barrier vanished, Masamichi Yaga held a funeral without Dazai’s body and was left with his final letter and clothes.

• Osamu Dazai’s consciousness faded as he bled to death, and he wondered whether anyone would understand him.
• The barrier dissipated, leaving scattered debris but no trace of Osamu Dazai or the Jujutsu Society’s Higher-Ups.
• Masamichi Yaga waited outside the barrier for two days before learning that Dazai’s body was gone.
• Masamichi Yaga held Osamu Dazai’s funeral at Jujutsu High, with an empty urn and Dazai’s final letter and clothes left behind.

Osamu Dazai woke from a hazy dream believing he was a cosplayer getting ready for a group shoot and a bungee-jumping trip. As he left with his friends, memories of names from the dream surfaced, but he could not recall what he had forgotten.

• The Chūya Nakahara cosplayer woke Osamu Dazai and urged him to get dressed for the group outing.
• Osamu Dazai put on his cosplay, including a red scarf, and brought a suicide manual and a rope.
• Osamu Dazai joined his friends and planned a dramatic photo during their bungee-jumping trip.
• In the chartered van, Osamu Dazai spotted a Jujutsu Kaisen photo shoot and recalled the names Nozomu Sakai and Sōsuke Mizukawa.
• The Chūya Nakahara cosplayer called Osamu Dazai over, and they argued as the group continued on.

Qichao woke up in the Port Mafia office surrounded by friends and allies, with no memory of how he had arrived there. After enduring medicine and his partner’s teasing, he used the Book to return them both to their original world, where an angry voice called for him.

• Qichao woke in the Port Mafia office and found Chūya, his close friend, Teacher Yaga, Satoru Gojo, Suguru Geto, Oda Sakunosuke, and Tōnosuke nearby.
• Qichao and his close friend admitted they did not know how they had ended up there, while Teacher Yaga scolded Qichao and made him drink bitter medicine.
• Chūya said Qichao’s partner had asked him to deliver the medicine because he might give in to Qichao acting cute.
• Qichao acted cute until his close friend agreed to his demands, startling Nozomu Sakai and Sōsuke Mizukawa.
• Qichao borrowed the Book’s power and rushed with his close friend back to their original world.
• After Qichao celebrated being home, someone outside angrily called his name, and he and his close friend feared they were in trouble.

Ten years after Osamu Dazai's death, Masamichi Yaga mourned his former student, while Satoru Gojo, Suguru Geto, and Toji Zenin reflected on the plans Dazai had left behind. Gojo and Geto carried out his reforms at Jujutsu High, and Toji kept the messages and assignments from his dead employer.

• Masamichi Yaga visited the former Jujutsu Society Higher-Ups site on the tenth anniversary of Osamu Dazai's death and remembered Dazai's despair and his own inability to save him.
• Three days after Dazai died, Satoru Gojo and Suguru Geto received a tape, traced it to a small city, and fought Toji Zenin before discovering Dazai had set the confrontation in motion.
• Gojo and Geto chose the path Dazai had planned and, two years later, helped overturn old policies while serving at Jujutsu High and as higher-ups.
• Toji Zenin recalled working as Dazai's hired blade and kept their now-gray chat and the assignments Dazai had sent him.

A group from Jujutsu High watched a screening of Osamu Dazai at fifteen, including his first dealings with Port Mafia boss Ōgai Mori. The chapter ended with Dazai asking Mori whether living had any value.

• The Book brought Masamichi Yaga, Satoru Gojo, Suguru Geto, and the others to a theater where they could not use cursed energy and explained that they would watch a movie.
• The screening showed fifteen-year-old Dazai killing a passenger on an aircraft and vowing to slaughter the Port Mafia.
• Dazai spoke with Ōgai Mori, a struggling doctor and Port Mafia boss, about his repeated attempts to die.
• Mori offered Dazai an easy-death drug in exchange for investigating rumors that the previous boss had returned from the dead.
• Dazai accepted the assignment and asked Mori why he wanted to die; Mori said he wanted to know why Dazai did.
• Dazai asked Mori whether living truly had any value.

The viewers watched Osamu Dazai investigate the return of a man in Suribachi Street, where Chūya Nakahara attacked and interrogated him over Arahabaki. The scene ended with Dazai identifying Chūya as the King of the Sheep and beginning to probe his role in the group.

• Masamichi Yaga and Suguru Geto recalled that Dazai had searched for the meaning of life from an early age, while Suguru Geto identified him as an upperclassman who had died.
• Osamu Dazai brought Hirotsu Ryūrō to Suribachi Street and told Mori that his investigation confirmed a man had returned to life.
• Chūya Nakahara struck Dazai down and demanded information about Arahabaki, but Dazai remained calm through the interrogation.
• Toji Zenin said that the boss's interrogation methods were frightening, then gave Megumi Zenin ginger milk pudding.
• Dazai identified Chūya as the King of the Sheep, and Chūya explained that he had taken responsibility for the group.

Osamu Dazai and Chūya Nakahara fought Hirotsu Ryūrō until a storm revealed the Port Mafia’s former boss, apparently returned from the dead. The observers wondered whether such a resurrection could happen in Jujutsu Society, while Satoru Gojo suggested the old man might have become a cursed spirit.

• Hirotsu Ryūrō confronted Chūya Nakahara, and Osamu Dazai used his Nullification ability to stop Chūya’s gravity power from working.
• Chūya Nakahara kicked Osamu Dazai out of reach before Hirotsu Ryūrō could use his ability, then attacked Hirotsu.
• The ground broke beneath Chūya Nakahara and Hirotsu Ryūrō, and a purple-black sphere and powerful storm spread across Suribachi Street.
• Osamu Dazai recognized the white-haired, bearded man who appeared from the storm as the former boss.
• Yuji Itadori asked whether someone could return from the dead in Jujutsu Society, and Satoru Gojo suggested the former boss might have become a cursed spirit.

As the group watched Osamu Dazai’s past, Chūya Nakahara met Ōgai Mori, learned the former boss had returned from the dead, and agreed to exchange information about Arahabaki. Satoru Gojo began to suspect the movie was connected to the Book’s reason for summoning them, then slipped into a troubling daze before Suguru Geto noticed.

• Satoru Gojo and Suguru Geto watched Chūya Nakahara’s tense meeting with Ōgai Mori and recalled Osamu Dazai’s death.
• Osamu Dazai provoked Chūya Nakahara, while the watchers discussed their heights and remembered Dazai.
• Ōgai Mori asked Chūya Nakahara to join the Port Mafia, and Chūya erupted in anger at the offer.
• Ōgai Mori admitted killing the former boss and showed Chūya footage of the former boss apparently returning from the dead.
• Chūya Nakahara agreed to exchange information with Ōgai Mori as they discussed Arahabaki and the Suribachi Street explosion.
• Satoru Gojo wondered whether the Book had summoned them for a purpose beyond watching the movie, then slipped into a daze that worried Suguru Geto.

Gojo the Cat, Suguru Geto, and Masamichi Yaga watched footage of Osamu Dazai and Chūya Nakahara being ordered by Ōgai Mori to investigate the Arahabaki rumor together. Geto and Yaga reflected on how unlike the lively young Dazai was the reserved Dazai they had known at Jujutsu High.

• Ōgai Mori told Osamu Dazai that the Port Mafia had also heard the Arahabaki rumor, but could not verify the footage or trace its source.
• Ōgai Mori ordered Osamu Dazai to find the culprit that day and assigned Chūya Nakahara to help him.
• Osamu Dazai and Chūya Nakahara protested working together, then argued over their heights until Ōgai Mori ordered them to stop.
• Ōgai Mori warned both boys that they could not disobey his orders and began explaining why they had to work together.
• Suguru Geto remarked that young Dazai seemed lively, while Masamichi Yaga recalled that Dazai had been quiet even around Nozomu Sakai and Sōsuke Mizukawa.

The jujutsu students tried to learn what Osamu Dazai had been like, while a scene from his past showed him and Chūya Nakahara investigating a survivor of an explosion. Masamichi Yaga and Utahime Iori recalled Dazai as a good senior, though Yaga also remembered the trouble he caused.

• Yuji Itadori asked what Osamu Dazai had been like, and Suguru Geto, Satoru Gojo, and Masamichi Yaga each gave brief answers.
• Megumi Zenin threatened to tell his mother about the Sorcerer Killer, but Toji Zenin shut him down by saying Dazai left nothing to chance.
• Osamu Dazai told Chūya Nakahara he was going to question a survivor of a similar explosion, then another blast erupted nearby and the two rushed toward it.
• Masamichi Yaga recalled Dazai's past arson and explosions, and Utahime Iori called him a good senior while criticizing Gojo and Geto.