Chapter Summaries

Bai Yu and his Support Squad joined the Survey Corps’ thirty-fifth expedition beyond the walls, clearing Titans and assisting other Scout Squads. After several hours, the expedition reached a forest outpost, where the soldiers rested in the trees as Erwin studied the route ahead.

• Bai Yu told Yishi he would ask Erwin to arrange for her to join the Training Corps after the expedition.
• Erwin led the Survey Corps beyond the walls, with Bai Yu’s Support Squad scouting ahead.
• Bai Yu, Xiate, and Ming killed an Abnormal Titan that lunged at them in the town, though it killed Bai Yu’s horse.
• Bai Yu’s squad responded to a red smoke signal, helped a Scout Squad kill three Titans, and fired a pink signal flare to report that the danger had passed.
• Bai Yu and the expedition reached a forest outpost, secured their horses, and rested in the trees while Erwin studied the map.

Bai Yu and the Scouts continued their journey toward Shiganshina District, relying on Ming’s warnings to avoid danger and intercepting an Abnormal Titan. They defeated it and rode onward, leaving two ordinary Titans behind.

• Bai Yu killed an Abnormal Titan that ambushed the group from above, then warned Erwin to keep watch over the forest canopy.
• Ming sensed danger on the plains, and Bai Yu’s smoke signals guided Erwin to change the formation’s course twice until Ming said they were safe.
• When Scout Squads on the right flank signaled an Abnormal Titan attack, Bai Yu led Ming and Xiate to assist them.
• Bai Yu drew the charging Abnormal Titan into an aerial attack while Ming and Xiate disabled its arms, then Bai Yu cut its nape.
• Bai Yu, Ming, and Xiate remounted and rode onward, leaving two ordinary Titans behind.

Bai Yu and the Survey Corps advanced toward Shiganshina District but turned back when Titans and casualties increased near Wall Maria. They returned to Trost District after a night march, having failed to reach Shiganshina but learned that the Titans grew denser near it.

• Bai Yu, Ming, Xiate, and the Survey Corps rested at an abandoned castle before setting out toward Shiganshina District before dawn.
• As the Scouts neared Wall Maria, they encountered growing numbers of Titans, and Bai Yu's Support Squad rescued several soldiers.
• Bai Yu fired a black flare, and Erwin ordered the formation to retreat toward Wall Rose.
• The Scouts replenished supplies at the castle, then marched through the night with Bai Yu's Support Squad and Levi Squad leading.
• After evading Titans and two Abnormal Titans, the Survey Corps returned to Trost District, having lost nearly ten Scouts and failed to reach Shiganshina.

After Yishi struggled through training, she told Bai Yu she would join the Survey Corps. At Survey Corps headquarters, Bai Yu built modified Omni-Directional Mobility Gear for Ming and Xiate and gave Erwin the plans, while Erwin noticed the handguns Bai Yu had added as a precaution against humans.

• Bai Yu asked Erwin to arrange for Yishi to join the 104th Training Corps, and Keith warned that she lacked the talent to become a soldier.
• Yishi kept training despite her poor stamina, then told Bai Yu she would join the Survey Corps.
• Bai Yu assembled custom modified Omni-Directional Mobility Gear for Ming and Xiate, with assistive exoskeleton joints and gas canisters that held about half again as much gas.
• Bai Yu offered Erwin the blueprints for a version of the modified gear that could be issued more widely.
• Bai Yu showed Ming and Xiate their gear and revealed the handguns fitted into its holsters, prompting Erwin to suspect they were meant as a precaution against humans.

Bai Yu trained Ming and Xiate in firearms and human combat, insisting they learn to survive without hesitation. A year later, after reviewing the cadets’ records, he decided to recruit Kali Lang for the Survey Corps and called her forward, leaving Yishi silently struggling with the belief that she had not been good enough.

• Bai Yu began training Ming and Xiate in firearms and hand-to-hand combat, explaining that they might have to kill people and telling them their lives mattered most to him.
• Over the next year, Bai Yu watched Yishi persist through training while Eren, Armin, and Mikasa visited him to ask about the world beyond the walls.
• Bai Yu reviewed Keith’s cadet records and noticed Kali Lang’s exceptional leadership and Omni-Directional Mobility Gear skills, which reminded him of a warrior from a game he had played in his previous life.
• Bai Yu asked Keith to let him speak with Kali and said he wanted to recruit her for the Survey Corps; Keith agreed after Bai Yu reassured him.
• Keith ordered Kali Lang to step forward, and as she approached Bai Yu, Yishi wondered why he had not chosen her and struggled with the urge to give up.

Bai Yu invited Kali Lang to join his dangerous Survey Corps Support Squad, and Kali sought Keith’s advice before deciding. Keith revealed the squad’s extraordinary Titan-kill record, leaving Kali and the trainees listening outside stunned.

• Bai Yu told Kali Lang that his Support Squad fought Titans more often than any other Survey Corps squad and invited her to join.
• Kali returned without accepting and told Eren, Armin, and Mikasa she wanted to ask Keith about the squad first.
• Kali asked Keith about Bai Yu’s invitation while Eren and several other trainees secretly listened outside his office.
• Keith explained that the Support Squad handled Titans encountered during expeditions, including Abnormal Titans, and that its three members had killed 156 regular Titans and 26 Abnormal Titans.
• Keith revealed Bai Yu’s recorded kills and named Hiette Doyle and Ming as the squad’s other members, shocking Kali and the eavesdropping trainees.

Keith questioned Kali about Bai Yu's offer to recruit her into the Support Squad, then encouraged her to consider it as a way to pursue the Armored Titan. The next morning, Bai Yu began hand-to-hand combat training for the 104th Cadet Corps, and the chapter left him facing a group of cadets who had challenged him.

• Keith told Kali that her teamwork and intelligence seemed better suited to other squads, but said Bai Yu must have had a reason for choosing her and urged her to think over the offer.
• Eren asked Mikasa whether Bai Yu was truly strong, and she suggested they ask him when he next visited.
• Bai Yu arrived with Ming and Xiate to lead the cadets' two-month hand-to-hand combat training, introducing himself as Instructor Bai Yu.
• Bai Yu invited the cadets to challenge him, and nearly two-thirds—including Eren and Mikasa—stepped forward.
• Bai Yu offered to pass every challenger if they could beat him together, then swiftly slammed the first attacker to the ground and faced the rest.

Bai Yu taught the 104th Training Corps hand-to-hand combat by easily defeating the cadets, then making them practice a horse stance. The cadets struggled to hold the position as Bai Yu corrected their forms.

• Bai Yu defeated the cadets in turn, sparing them serious injury and leaving Armin, Eren, Mikasa, and Yishi as the last ones standing.
• Eren charged Bai Yu and was effortlessly spun around; Bai Yu then defeated Mikasa and threw her toward Eren, who caught her.
• Yishi attacked Bai Yu and was gently knocked down, after which Bai Yu ordered the cadets to fall in.
• Bai Yu assigned the cadets a morning-long horse stance and corrected their posture as they began to tremble.
• Armin fell from exhaustion but got back into position when Bai Yu told him to continue, while Annie held the steadiest stance and Yishi kept trembling.

Bai Yu continued training the 104th Cadet Corps and crushed Annie’s attempt to challenge him. A Titan suddenly appeared near the training grounds, sending the Cadets into panic as Bai Yu, Ming, Xiate, Eren, and the others rushed to retrieve their Omni-Directional Mobility Gear.

• Bai Yu made the Cadets stand at attention and warned them that failing to do so would add another brick to their next horse stance session.
• Annie fought back after Bai Yu kicked her, but he defeated her, dislocated her arm, and reset it before ordering the Cadets to form up.
• The Cadets grew accustomed to Bai Yu outside training but remained wary of his ruthless discipline as their instructor.
• A bolt of golden lightning struck nearby, and a Titan appeared on all fours near the training grounds.
• Bai Yu sent Ming and Xiate to get their Omni-Directional Mobility Gear while the Titan ran toward them, and Eren and the other Cadets hurried to retrieve their gear as well.

Bai Yu restored order among the Cadets and led Ming and Xiate in killing a Titan that had appeared near the Training Corps. Afterward, Kali chose to pursue a place in the Survey Corps Support Squad, and Bai Yu set her a demanding condition for joining.

• Bai Yu ordered the panicked Cadets to form up, punished two who disobeyed, and sent Ming and Xiate to stop the approaching Titan.
• Ming and Xiate disabled the Titan, and Bai Yu killed it with a strike to its nape while Eren and Mikasa watched.
• Bai Yu dismissed the Cadets and told Kali she could join the Support Squad if she ranked among the top three within a year.
• Kali accepted the challenge, and Bai Yu ordered the Cadets to increase her training load.

Bai Yu told Erwin his theory that Titans might be humans who came from outside the Walls, giving Erwin a lead to investigate. On the thirty-sixth expedition, Erwin drove the Scouts toward Shiganshina District, where they rested after heavy fighting and prepared to press on at night.

• Bai Yu suggested to Erwin that Doctor Jaeger may have entered the Walls from the outside, and Erwin considered the theory after Bai Yu left.
• Bai Yu decided to wait two years before confronting the four Titans and planned to develop the Thunder Spear to pierce the Armored Titan's armor and hardening.
• Bai Yu announced he would leave the Training Corps for an expedition, while Keith continued training the cadets.
• Erwin sent the Scouts toward Shiganshina District, assigning Bai Yu's Support Squad to the left and Levi Squad to the right.
• The Scouts killed many Titans on the march, suffering several deaths, and Erwin waited for nightfall before planning to push to the breach.

Erwin led the Survey Corps toward Shiganshina District, believing the key he held could reveal information unavailable on earlier expeditions. Bai Yu’s Support Squad and Levi’s squad cleared Titans as the troops advanced through the night, nearing their destination while fatigue set in.

• Erwin told Levi that the expedition might uncover important information and showed him a key; Levi said he trusted Erwin’s judgment.
• Bai Yu urged Erwin and Levi to set out, and the Survey Corps mounted up and advanced toward Shiganshina District.
• Bai Yu’s Support Squad led the nighttime formation while Levi’s squad rode alongside them, using flares to guide the other squads.
• Bai Yu ordered the soldiers to kill every standing Titan, and his squad and Levi’s squad dispatched Titans along the road.
• The Survey Corps charged toward Wall Maria as more Titans appeared; Bai Yu, Ming, and Xiate fought while growing exhausted near their destination.

The Survey Corps searched Doctor Jaeger's former home in Shiganshina for clues and discovered three hidden books in a basement drawer. Erwin opened one of the books, bringing the group closer to learning the truth.

• Erwin ordered the Scouts to clear the remaining Titans from Shiganshina while the Support Squad rested.
• Erwin asked Bai Yu to lead him and Levi to Doctor Jaeger's former home after the Titans were cleared.
• Bai Yu found the basement hatch beneath the rubble, and he and the others entered the hidden room.
• Erwin searched the basement for a keyhole while Bai Yu helped locate one beneath the desk.
• Levi found a false bottom in the unlocked drawer, revealing three books, and Erwin opened one.

Erwin, Levi, and Bai Yu learned from the books that humans lived beyond the walls and that Eldia faced a hostile world. After Erwin revealed his excitement and ordered the Scouts to keep the discovery secret, the exhausted group returned to Wall Rose, where Ming and Xiate fell asleep against Bai Yu.

• Erwin, Levi, and Bai Yu read the books and learned about the world beyond the walls, the nine titans, and Doctor Jaeger's past.
• Erwin broke down laughing with excitement after reading the truth, while Bai Yu and Levi left him alone to process it.
• Bai Yu joked to Hange that they had found a dirty book, and Levi backed up his story.
• Erwin emerged from the basement, ordered the group to keep the discovery secret, and led the Scouts in a withdrawal to Wall Rose.
• After more than ten hours of riding, Ming and Xiate fell asleep against Bai Yu, who carried them upstairs.

Bai Yu woke after accidentally sleeping beside Ming and Xiate, then met with Erwin and Levi to discuss overthrowing the king and protecting Eldia. Erwin began planning a secret operation to find the true ruler and entrusted Eren’s three recovered books to Bai Yu as a safeguard against memory erasure.

• Bai Yu woke in Ming’s room with Xiate curled on top of him, and he and the others changed clothes and bathed.
• Erwin summoned Bai Yu and Levi to discuss the king’s refusal to fight and the danger facing humanity beyond the Walls.
• Bai Yu agreed to follow Erwin’s judgment, and Erwin concluded that the nobles were using the current king as a puppet.
• Erwin warned that the Colossal and Armored Titans might be Marleyan infiltrators seeking the Founding Titan.
• Erwin said he would plan a secret operation involving Levi’s squad and Bai Yu’s squad, then entrusted Bai Yu with the three books from Eren’s home.
• Bai Yu wondered why the future Eren still existed despite the changes he expected.

Bai Yu helped Erwin prepare for the Survey Corps’ next move while training recruits and studying how to make weapons. Erwin revealed the truth about the world outside the walls to trusted soldiers and won their support for overthrowing the Royal Government.

• Bai Yu left Erwin to handle the political scheming after sharing what he knew, then returned to the Training Corps and used Kali to demonstrate hand-to-hand combat.
• Erwin secured a factory to improve the Omni-Directional Mobility Gear, while Bai Yu studied missile principles and tested weapon ideas in the System Training Space.
• Erwin gathered trusted Survey Corps soldiers, and Levi handed out papers explaining the truth about the walls as Bai Yu guarded against eavesdroppers.
• Erwin declared that the Survey Corps’ mission was to overthrow the Royal Government, and the soldiers pledged their trust and support.
• Bai Yu resumed training the recruits, correcting Eren, Sasha, Mikasa, and Armin with drills and added bricks.

Bai Yu completed two months of hand-to-hand combat training and announced the cadets’ rankings, then joined Erwin’s meeting with Commander Pixis. The chapter ended with Bai Yu giving Pixis three books about the world outside the Walls.

• Bai Yu trained the cadets in joint attacks and warned them that afternoon sparring and combat scores would affect their overall rankings.
• Bai Yu announced Annie Leonhart in first place, followed by Mikasa Ackerman, Eren Yeager, Reiner Braun, Kali Lang, Sasha Braus, Jean Kirstein, Bertholdt Hoover, Ymir, and Ishi Dovilis.
• Bai Yu dismissed the cadets after combat training, and they reflected on how much they would miss him before beginning Omni-Directional Mobility Gear practice the next day.
• Bai Yu and Ming went to meet Erwin, where they found Levi and Commander Pixis waiting.
• Bai Yu handed Pixis three books about the truth outside the Walls, then sat down and read a book on advanced basic missile theory.

Bai Yu helped Erwin and Pixis reason out how to identify the true king and investigate Eren’s hidden Titan power, then left to research a weapon against the Armored Titan. On the way to the factory, he was suddenly transported to Paths, where he saw Ymir.

• Erwin entrusted the three books to Bai Yu and told Pixis he intended to overthrow the Royal Government; Pixis agreed to join him.
• Bai Yu suggested Eren might have inherited his father’s Attack on Titan power after being injected with Titan spinal fluid, and urged Erwin to watch him closely.
• Bai Yu advised Erwin and Pixis to secretly interrogate nobles to identify the true king, then left to research a weapon capable of piercing the Armored Titan’s armor.
• Erwin praised Bai Yu’s deductions and discussed following his advice with Pixis.
• A strange sound transported Bai Yu, Ming, and Xiate away from the woods, and Bai Yu found himself in Paths, where he recognized the girl Ymir.

Bai Yu found himself in Paths with Ymir and tried to reach her, but she remained unresponsive as she built Titans. He passed the time telling her a fairy tale, leaving the two of them together in the quiet world.

• Bai Yu tested the system's Training Ground and discovered he could enter it while in Paths, where time passed far more slowly than outside.
• Bai Yu suspected Ymir had brought him into Paths and tried to get her attention, but she continued building a Titan without reacting.
• Bai Yu questioned Ymir about the Spinal Worm and the Founding Titan, then reflected on his feelings and why he kept training.
• Bai Yu lay beside Ymir and began telling her a fairy tale about a mermaid and a prince.

Bai Yu returned from his long, quiet time with Ymir and reunited with Xiate and Ming, then went shopping with Ming after he ran out of liquor. The chapter ended at a liquor shop, where the shopkeeper tried to steer Ming away from the strongest bottle.

• Ymir found Bai Yu gone, picked up his earbud, and listened to his recorded voice while continuing to mold Titans.
• Bai Yu suddenly reappeared beside Xiate and Ming and told them about his time with Ymir.
• Xiate questioned how Bai Yu had returned, and Ming asked whether he had liked being with Ymir; Bai Yu admitted that he had but also affirmed that he loved them.
• Several days later, Bai Yu discovered Ming had finished their liquor in two days and agreed to take him shopping.
• At a liquor shop, Ming chose the strongest liquor, but the shopkeeper frowned and offered him a bottle of fruit wine instead.