Chapter Summaries

Bai Yu, a transmigrator in the world of Attack on Titan, trained with his system as he prepared for the fall of Wall Maria in 845. He acknowledged he could not save everyone and went home with his adopted younger sister, Hiette Doyle.

• Bai Yu recalled his previous life, his training system, and his efforts to survive in the world of Attack on Titan.
• Bai Yu thought about the people who would die when Wall Maria fell the following year and accepted that he could not protect them all.
• Bai Yu watched the Survey Corps depart from Shiganshina before Hiette called him home.
• Bai Yu put away his earphones, answered Hiette, and followed her home.

Bai Yu met Eren, Mikasa, and Armin after the Survey Corps left on an expedition, then reassured Xiate that he had no plans to join them. After Xiate fell asleep beside him, Bai Yu opened his system panel and entered the training grounds.

• Bai Yu greeted Eren, Mikasa, and Armin and heard Eren talk excitedly about the Survey Corps expedition beyond the walls.
• Bai Yu and Xiate headed home, and he told her he had no current plans to join the Survey Corps.
• Xiate joined Bai Yu in bed that night and nestled against him after he quickly fell asleep.
• Bai Yu viewed his system panel in his mind and immersed his consciousness in the training grounds.

Bai Yu trained by fighting Titans in a ruined town, but an intelligent Titan modeled after him repeatedly defeated him. After collapsing, he woke restored when the training reset and began practicing hand-to-hand combat.

• Bai Yu descended from the wall and used his mobility gear and blades to fight the Titans in town.
• Bai Yu fought until evening, suffering severe injuries and exhausting his blades and gas.
• Bai Yu tried to attack a powerful, intelligent Titan modeled on himself, but it repeatedly killed him and proved stronger.
• Bai Yu collapsed on the wall and lost consciousness, triggering the training reset that restored his body and repopulated the area with Titans.
• Bai Yu ignored the Titans and began practicing hand-to-hand combat against a figure, preparing for human opponents and weapons.

Bai Yu woke to Xiate’s prepared breakfast and checked the day’s system tasks, which rewarded healthy routines and training. After teasing Xiate as she cleaned up, he and Xiate arrived late to work and were scolded by Sister Shi.

• Bai Yu reviewed his personal stats and daily tasks, including eating on time, working at the restaurant, and sleeping fifteen hours.
• Bai Yu ate breakfast with Xiate, who wondered why he still looked tired despite all his sleep.
• Xiate stopped Bai Yu from clearing the dishes and blushed when he watched her and called her cute.
• Bai Yu and Xiate were late for work, so Sister Shi scolded them without docking their pay.

In 845, Bai Yu warned Xiate that the Titans would breach Shiganshina’s wall and prepared to intervene, taking Omni-Directional Mobility Gear from the Garrison Regiment. Xiate reminded him of their vow to stay together, and Bai Yu agreed to keep her by his side as she insisted on joining whatever he planned to do.

• Bai Yu watched the Survey Corps return to Shiganshina and told Xiate that Titans would soon breach the wall.
• Bai Yu revealed stolen Omni-Directional Mobility Gear and began preparing to use it, while Xiate worried that soldiers would arrest him.
• Bai Yu explained that he feared for Eren, Mrs. Yeager, and his senior sister when the Titans arrived.
• Xiate reminded Bai Yu of their vow, and they promised to remain together even if they faced danger or death.
• Xiate demanded that Bai Yu tell her what he planned to do.

Bai Yu rushed to save people when the Titans breached Shiganshina District, rescuing Xiate and Carla from a boulder before sending them away with Eren and Mikasa. He headed to find Ishi, who remained trapped in a tavern as a Titan reached for her.

• Bai Yu and Xiate reached Carla Yeager's home just as the Colossal Titan appeared over the wall and Titans smashed the gate.
• Bai Yu pulled Xiate and Carla out of the path of a flying boulder, but the impact destroyed Carla's house and injured his back.
• Carla reunited with Eren and Mikasa, and Bai Yu told them to flee while he went to find Ishi.
• Xiate left with Eren, Mikasa, and Carla as Bai Yu turned toward the approaching Titans.
• Ishi hid behind the tavern counter until a Titan spotted her and reached for her.

Bai Yu rescued Yishi from a Titan and carried her through the danger to an evacuation boat. He reunited with Xiate, Eren, and the others aboard, while Yishi sat in shock after losing her father.

• Bai Yu killed the Titan reaching for Yishi and roused her from her frozen terror so they could escape.
• Bai Yu carried Yishi on his back with his Omni-Directional Mobility Gear and disabled a Titan reaching for them in midair.
• Bai Yu and Yishi reached the riverbank, where Xiate, Eren, and the others boarded a second evacuation boat.
• Bai Yu used his gear to board with Yishi as the boat left many people behind on the crowded riverbank.
• Xiate hugged Bai Yu, and Yishi sat beside them in a daze after her father was eaten.

Bai Yu and the refugees witnessed the Armored Titan breach Wall Maria, forcing them to flee toward Wall Rose. As Eren vowed to join the Survey Corps, Bai Yu said he would enlist in the Garrison Regiment instead.

• Bai Yu noticed the Armored Titan approaching, and it smashed through the gate despite the soldiers’ cannon fire.
• Bai Yu saw nearly a hundred Titans enter Shiganshina District and worried about the refugees’ future food shortage and possible forced expedition.
• As the boat neared Wall Rose, Bai Yu discarded his Omni-Directional Mobility Gear to avoid questions and kept his knowledge of using it secret from Eren.
• Eren declared that he would join the Survey Corps, prompting Mikasa and Carla to plead with him to reconsider.
• Bai Yu told Xiate, Eren, and Yishi that he would become a soldier in the Garrison Regiment and guard Wall Rose.

Bai Yu and the others struggled to survive among the refugees in Wall Rose as food ran short and Grisha Yeager remained missing. Erwin Smith confronted Bai Yu with parts of the Omni-Directional Mobility Gear and pressured him to follow, allowing Xiate to come too.

• Bai Yu worried that Armin's grandfather, Carla, Yishi, and the others might be sent to reclaim wasteland or join the operation to retake Wall Maria.
• Refugees crowded into Wall Rose, where food shortages and rising prices fueled hostility toward people from Wall Maria.
• Eren angered locals with his rash behavior, and Mikasa dragged him away; Bai Yu obtained food from Garrison Regiment soldiers.
• Erwin Smith showed Bai Yu parts of the Omni-Directional Mobility Gear and offered him an opportunity, making Bai Yu realize Erwin had recognized his skills and was forcing him to cooperate.
• Bai Yu followed Erwin outside, and Erwin allowed Xiate to accompany them.

Bai Yu agreed to join the Survey Corps after Erwin promised to protect the refugees and Xiate from the Wall Maria Retake Plan. He proved his skill by killing the three Titans in ten seconds and a distant Titan on his return to the wall.

• Bai Yu asked Erwin to keep the refugees from being sent to fight in the Wall Maria Retake Plan, and Erwin promised to do so if Bai Yu passed a test.
• Bai Yu carried Xiate up the wall with Omni-Directional Mobility Gear and kept pace with Erwin and his men.
• Erwin asked Bai Yu to join the Survey Corps and offered to protect Xiate and Bai Yu’s companions; Bai Yu warned that he would kill anyone who harmed his sister.
• Erwin challenged Bai Yu to kill three Titans within three minutes, promising to fulfill his terms and overlook the stolen gear.
• Bai Yu killed the three Titans in a single maneuver in ten seconds, then killed a distant five-meter Titan with a thrown blade before returning to the wall.

Bai Yu and Xiate joined the Survey Corps after Erwin agreed to let Xiate enter the Training Corps early. Bai Yu settled into the corps headquarters with unusual freedom and prepared to attend an assembly that afternoon.

• Bai Yu agreed to take Xiate with him, and Erwin offered her early entry to the Training Corps before she could join the Survey Corps in three years.
• Erwin told Bai Yu he would become commander soon and assigned Bai Yu directly to him, making him a Survey Corps member who would join every expedition beyond the walls.
• In the carriage, Erwin asked how Bai Yu learned to use Omni-Directional Mobility Gear, and Bai Yu claimed his natural talent let him simulate movements in his mind.
• Erwin brought Bai Yu and Xiate to headquarters, gave them a shared dormitory room, and arranged for Xiate to start training in a few days.
• Erwin told Bai Yu to attend the afternoon assembly and gave him freedom to do as he pleased between expeditions, so Bai Yu celebrated his new life in the Survey Corps.

Bai Yu introduced himself to the Survey Corps and provoked Levi with a joke before escaping with Xiate. He settled down to sleep, then entered the Training Ground and practiced killing Titans.

• Bai Yu introduced himself as a ten-year-old from Shiganshina District, and Erwin told Levi he would become a pillar of strength for the Survey Corps.
• Bai Yu recognized Levi and teased him with a joke about Titans building walls to keep out someone who was 170 centimeters tall.
• Bai Yu ran off with Xiate as Levi threatened to kill him, leaving the other soldiers to flee.
• Bai Yu rested with his head in Xiate's lap and entered the system's Training Ground.
• Bai Yu equipped his gear, listened to music, leaped from Wall Rose, and attacked Titans.

Bai Yu spent his days sleeping and eating while watching Xiate train with the recruits, and he noticed a talented, white-haired recruit he hoped to bring into the Survey Corps. When Bai Yu greeted the recruit that night, the stranger sniffed him, tackled him, and took the bottle of liquor from his waist.

• Bai Yu slept through most of the day, eating at mealtimes while Levi and Erwin left him alone.
• Bai Yu watched Xiate lead the recruits in stamina training and reflected on the dangers of the planned Wall Maria Retake Plan.
• Xiate quickly mastered the balance test, and Bai Yu noticed a quiet, androgynous white-haired recruit with wine-red eyes who also showed exceptional talent.
• Bai Yu greeted the white-haired recruit after training, but the recruit sniffed him, knocked him down, and took his bottle of liquor.

Bai Yu befriended Ming, a quiet recruit who loved liquor, and offered to supply him with drinks if he ranked among the top three and joined the Survey Corps. Ming agreed and promised to wait for Bai Yu, while Bai Yu looked forward to the years of training ahead.

• Ming asked Bai Yu for liquor, and they introduced themselves and talked about Ming's love of drinking.
• Bai Yu learned that Ming was a boy with no surname and asked which regiment he planned to join.
• When Ming mentioned the Military Police Brigade, Bai Yu urged him to join the Survey Corps instead and offered him liquor if he placed in the top three recruits.
• Ming accepted the offer and promised that drinking would not interfere with his training or awareness.
• Bai Yu and Ming made a pinky promise to meet again, and Ming said he would wait if Bai Yu was delayed by an expedition.

Bai Yu joined the Survey Corps’ twenty-seventh expedition beyond the walls as its lone vanguard, with Levi assigned to accompany him. After the Scouts cleared a town and formed up outside it, Bai Yu brought down a Titan, impressing Levi with his skill.

• Bai Yu arrived for the expedition, and Levi asked Erwin to let him ride alongside Bai Yu in case anything went wrong.
• The Survey Corps departed through the gate as Eren, Mikasa, and Armin watched; Eren was surprised that Bai Yu had become a Scout.
• Five cover squads cleared the Titans in a town, allowing the main force to pass through and deploy into the long-range scouting formation.
• Levi followed Bai Yu at the vanguard and warned him that he would kill him if his mistakes cost soldiers their lives.
• Bai Yu used his blades and maneuvering gear to topple and kill a seven-meter Titan, and Levi praised his moves.

Bai Yu joined Erwin and Levi on the Survey Corps’ expedition beyond the walls, where he proved exceptionally effective against Titans and questioned how the walls had been built. After returning to Wall Rose, he met Ming at their usual spot and resolved to recruit him into his squad.

• Bai Yu changed direction with the long-range Scouting Formation and wondered whether saving Aunt Carla had altered Eren’s future.
• Bai Yu killed all seven Titans his squad encountered, and Levi told Erwin that the ten-year-old was stronger and more efficient than the whole squad.
• Bai Yu asked Erwin how people had built the walls, but Erwin said he did not know.
• Erwin ordered the Survey Corps to assemble and withdraw after they marked the route, set up supply caches, and assessed Titan density.
• Bai Yu returned to Wall Rose and found Ming waiting at the mountain slope, then decided he would recruit him into his squad.

After the Maria Retake Plan ended in slaughter, Bai Yu earned the Survey Corps’ respect by killing twenty-five Titans and saving soldiers. He formed the Support Squad with Xiate and Ming, trained them, and led them on expeditions where their growing skills saved many more soldiers.

• Erwin’s Maria Retake Plan failed when Titans overwhelmed the soldiers and scattered the hundred thousand civilians, and he ordered the Survey Corps to retreat.
• Bai Yu killed twenty-five Titans and rescued several Survey Corps soldiers, earning the nickname the Sleep-Deprived Reaper.
• Bai Yu persuaded Erwin to let Xiate and Ming join his squad, and he trained them to use the Omni-Directional Mobility Gear.
• Xiate and Ming killed four Titans on their first expedition and twelve on their second with Bai Yu’s help.
• Bai Yu, Xiate, and Ming became known as the Support Squad, whose rescues earned them high regard throughout the Survey Corps.

Bai Yu observed the new Training Corps recruits while considering potential additions to his squad and continuing to develop Omni-Directional Mobility Gear. After meeting Eren, Mikasa, and Armin, he decided to keep an eye on Kali Lang, then went to the wall to find Ming.

• Bai Yu watched the recruits, recognized Reiner Braun, Annie Leonhart, Bertholdt Hoover, and Ymir, and noticed Kali Lang wanted to kill the Armored Titan.
• Bai Yu reviewed his progress modifying Omni-Directional Mobility Gear and left the Training Ground after external interference woke him.
• Eren, Mikasa, and Armin spoke with Bai Yu about their plans to join the Survey Corps, and Eren seemed unable to remember when he had received his basement key.
• Bai Yu decided to return later and assess Kali Lang as a possible squad member, then climbed the wall and greeted Ming as he drank and watched the grasslands.

Bai Yu and Ming discussed the Titans’ strange changes before preparing for an expedition to Shiganshina District. Before leaving, Bai Yu visited Yishi, who was terrified by the visions caused by her illness.

• Ming told Bai Yu that he sensed the Titans had changed, and they agreed to be more careful on their next expedition.
• Bai Yu and Ming discussed how they might respond if humans still lived outside the walls, and Bai Yu said he would kill them if they were enemies.
• Bai Yu told Ming they would travel to the breach at Shiganshina District and thought about finding Doctor Jaeger's books and dealing with Annie and the others.
• Bai Yu visited Yishi before the expedition and found that she had hidden an empty medicine bottle and another bottle of medicine.
• Yishi clung to Bai Yu and sobbed that she was terrified, while Bai Yu comforted her and struggled with how to help.

After Yishi broke down over her father's death, Bai Yu cared for her and listened as she said she wanted to join the Survey Corps. Yishi admitted she was terrified and lacked the will to face training, and Bai Yu finally agreed to support her.

• Bai Yu comforted Yishi, prepared food and bathwater, and waited nearby while she bathed.
• Bai Yu washed Yishi's hair, and she told him she wanted to join the Survey Corps.
• Bai Yu warned Yishi that joining the Survey Corps could mean death, while she confessed that her fear of Titans made her feel unable to begin training.
• Yishi begged Bai Yu for his approval, and he hugged her and agreed to support her decision.