Chapter Summaries

Chen Si woke in the world of Attack on Titan with immense strength and speed, then learned that a system had given him an Ackerman Bloodline template and lightning abilities. After rescuing himself from a marsh, he began to consider how he would survive in this world alongside Mikasa.

• Chen Si awoke in the Ackerman family home, met Mikasa, and accidentally damaged the floor with his unfamiliar strength.
• Over the next few days, Chen Si accepted that he had traveled to Paradis Island and discovered that his stamina, strength, and speed were far beyond normal.
• Chen Si promised Mikasa that she would find friends and would not be lonely, then went fishing with her by the lake.
• Chen Si sank into a marsh while catching a fish, but a burst of lightning helped him break free at the cost of leaving him exhausted.
• A one-time system tutorial identified Chen Si as a VIP player, granted him a pending Ackerman Bloodline template and lightning abilities, and said he needed to kill a Pure Titan to fully activate them.
• Chen Si asked the system why he had transmigrated, but it did not answer.

Chen Si joined the Ackermans as family and learned that Mikasa’s father was also an Ackerman fleeing persecution. He tried to protect them from danger, but while he slept, armed traffickers attacked the household, leaving Mr. Ackerman wounded and forcing Chen Si to fight while exhausted.

• Chen Si accepted the Ackermans as his family and told Mr. Ackerman that his surname was Ackerman.
• Mr. Ackerman revealed that he belonged to the Ackerman clan and explained why the family stayed in their remote home to evade the Military Police Brigade.
• Chen Si suffered severe pain and drowsiness that prevented him from warning the family about the approaching threat, then patrolled with Mr. Ackerman and found no danger.
• Three men approached the house to seize the family, while Chen Si fell asleep to recover his dwindling electrical energy.
• The traffickers attacked the Ackermans, and Mrs. Ackerman urged Mikasa and Chen Si to run after one man stabbed Mr. Ackerman.
• Chen Si knocked out the fat trafficker and grabbed a knife, but exhaustion and depleted energy made him nearly collapse before he could strike.

Chen Si, Mikasa, and Mrs. Ackerman were captured by traffickers after Chen Si failed to save Mr. Ackerman, but Chen Si and Eren killed their captors and freed the others. When another trafficker seized Eren, Chen Si urged Mikasa to fight, then lowered her dagger when she could not bring herself to kill.

• Chen Si knocked out two traffickers with his electricity-fueled strength, but collapsed from exhaustion as Mrs. Ackerman discovered Mr. Ackerman had died.
• The fat trafficker captured Mikasa, Chen Si, and Mrs. Ackerman, and the two men planned to sell them in the Underground.
• Grisha Yeager found Mr. Ackerman dead and sent Eren to wait while he sought help from the Military Police Brigade.
• Chen Si woke, freed himself, and attacked the traffickers when Eren arrived; Eren stabbed the axe-wielding man, and Chen Si killed the fat man.
• Eren savagely stabbed the dying fat man, while Chen Si comforted Mikasa, untied her and Mrs. Ackerman, and introduced himself as Mikasa's older brother.
• A third trafficker grabbed Eren, and Chen Si urged Mikasa to fight; she picked up a dagger but could not kill, so Chen Si lowered her hand.

Chen Si and Mikasa survived the attack by traffickers, and Mikasa killed one of them to protect her family. After Grisha Yeager warned that more traffickers might come, Mrs. Ackerman agreed to move in with the Yeagers, while Grisha wondered whether Eren could change the future.

• Chen Si beat the deformed trafficker, and Mikasa awakened her Ackerman strength and stabbed him in the heart.
• Mrs. Ackerman awoke to find the three traffickers dead, and Grisha arrived with the Military Police Brigade to bring the children to safety.
• Chen Si defended Eren to Grisha, then borrowed Eren's scarf and comforted Mikasa, whose Ackerman bloodline reached its peak as she clung to him.
• Grisha warned Mrs. Ackerman that the traffickers belonged to an organization selling victims to nobles, and he urged her family to stay with the Yeagers.
• Eren welcomed Chen Si, Mikasa, and Mrs. Ackerman into his home, and Grisha wondered whether Eren could change the future.

Chen Si, Eren, and Mikasa woke from strange dreams, gathered firewood, and argued about danger beyond the Walls before watching the Survey Corps return from a disastrous expedition. After Eren rushed to confront people mocking the returning soldiers, Mikasa stopped him, and Chen Si warned that he was still too weak to join the Corps.

• Chen Si and Eren woke crying beneath a tree, forgot their dreams, and joined Mikasa on the way home with firewood and a rabbit.
• Chen Si accidentally killed the rabbit with an electric current, while Eren confused something from a dream with reality as they failed to start a fire by rubbing sticks together.
• Eren criticized the Garrison soldiers for neglecting the threat of Titans, and Chen Si agreed that people should not live like penned livestock.
• Chen Si and Mikasa followed Eren to watch the Survey Corps return, where they saw wounded soldiers and learned that Moses had died on the expedition.
• Eren charged toward adults mocking the returning soldiers, but Mikasa dragged him away and Chen Si told him he was too weak to join the Survey Corps.

Chen Si, Eren, Mikasa, and Armin discussed life beyond the walls and the Survey Corps before the Colossal Titan appeared and breached the wall. As Titans poured into the district, Chen Si and Mikasa ran with Eren and Armin toward Eren’s home, where Eren feared for Carla.

• Eren declared that he would join the Survey Corps, while Carla and Mikasa opposed the plan and Grisha promised to show Eren the Secret Basement when he returned.
• Chen Si and Mikasa found Eren facing off against three children who had attacked Armin for talking about crossing the walls to see the ocean.
• Armin questioned whether people inside the walls were truly safe, and Chen Si warned that disaster could strike at any moment.
• A flash of golden light and a violent earthquake revealed the Colossal Titan, which rose above the wall as the four stared in shock.
• Chen Si and Mikasa grabbed Eren and Armin and ran as the Colossal Titan kicked the wall inward, letting Titans into the district.
• Eren saw rubble flying toward his home and cried out for Carla while Armin said the district was doomed.

Chen Si and Mikasa reached Eren's house after Mrs. Ackerman sacrificed herself to save a child, but found Carla trapped beneath the rubble as a Titan approached. Chen Si resolved not to give up, though the children could not lift the beam and he questioned the system's claim that he could kill a Pure Titan alone.

• Chen Si and Mikasa ran toward Mrs. Ackerman after recognizing her voice, but arrived too late to stop Titans from devouring her.
• Mrs. Ackerman drew the Titans away from Blake, who was rescued by a soldier, and told Mikasa and Chen Si to live on before she died.
• Chen Si attacked the soldier who had hesitated to help, then sent Blake east to find Armin and continued toward Eren's house with Mikasa.
• Chen Si and Mikasa found Eren trying to free Carla from the collapsed house, and the three children failed to lift the beam trapping her.
• Carla urged the children to flee as the smiling blond Titan approached, but Chen Si refused to give up and wondered why the system's promised strength had not helped him lift the beam.

Chen Si used his mysterious electricity to free Carla from the rubble and collapsed from exhaustion as the group escaped to safety by boat. After waking, he noticed Mikasa’s grief and wondered why Mrs. Ackerman’s death seemed familiar.

• Hannes fled with Eren and Mikasa, but Chen Si stayed behind and cut through the beams trapping Carla with his electrified knife.
• Mikasa caught the exhausted Chen Si while Hannes carried Carla, and they escaped toward the Inner City as Eren exchanged a strange look with Dina Fritz.
• On the boat, Mikasa told Carla and Eren that Mrs. Ackerman had died, and Carla invited Mikasa to live with her family.
• Carla checked Chen Si and reassured everyone that he had only fainted from exhaustion, while Mikasa vowed to protect him.
• Chen Si woke in Mikasa’s lap, thanked her, and wondered why Mrs. Ackerman’s death felt familiar before Carla offered him fruit.

Chen Si watched the evacuation boat leave as the Titans breached Wall Maria, and he worried about his inability to fight them. Dina Fritz nearly caught Bertolt, but a bowl-cut boy with glasses made Bertolt vanish and hurried him toward safety.

• Chen Si shared food with Mikasa on the boat and worried that his ability left him powerless against the coming danger.
• A golden-armored Titan smashed the Inner City gate, and a severed Garrison soldier's arm landed in the lake, terrifying the passengers.
• Eren vowed to drive the Titans out and take back their home while Chen Si wondered about Eren's future actions.
• At Wall Maria, Dina Fritz approached an exhausted Bertolt after he undid his transformation, but he could no longer transform to escape.
• A bowl-cut boy with glasses made Bertolt vanish from Dina's reach and urged him to hurry inside before she returned.

Grisha took Eren into the forest and passed the Attack Titan to him, then Shadis hid the truth from Carla about Grisha’s fate. The next morning, Eren fought a soldier who insulted refugees, and Chen Si stepped in to taunt the man as he attacked.

• Grisha arrived at the refugee camp with Shadis, led Eren into the forest, and left him unconscious after a burst of yellow lightning.
• Carla chased after them, but Shadis claimed Grisha had gone to see a patient; Carla returned to camp with Eren, grieving and suspicious.
• Eren woke the next morning with the key around his neck and joined Mikasa in line for food, where Armin explained the refugees’ shortages and discrimination.
• A soldier said the Titans should eat more refugees, so Eren kicked him; the soldier and another man knocked Eren down, and Carla rushed in to protect him.
• Chen Si confronted the soldiers, dodged the center-parted man’s punches, and mocked him as he kept attacking.

Chen Si and his family endured famine in the refugee reclamation area while he discovered that his lightning could temper metal. When Armin’s grandfather was ordered to join the mission to retake Wall Maria, Chen Si and Eren volunteered to go with him, despite their families’ objections.

• Chen Si and Mikasa stopped two soldiers from attacking refugees, and the crowd beat one soldier after he drew his blade.
• Chen Si caught Eren’s thrown bread, forced him to eat it, and Carla and Mikasa urged him to focus on surviving rather than insulting others.
• The Royal Government sent Wall Maria refugees to reclaim wasteland, where Eren, Mikasa, Carla, and Chen Si struggled through famine and difficult work.
• Chen Si discovered that his lightning could strengthen and sharpen metal, though tempering his dagger took time and left him exhausted.
• Armin and his grandfather visited to say goodbye after the government ordered two hundred thousand refugees to retake Wall Maria.
• Chen Si volunteered to go with Armin’s grandfather, and Eren immediately volunteered too, as Mikasa, Carla, and the old man objected.

Chen Si failed to sneak away and enlist after Mikasa repeatedly stopped him, but he later joined Eren, Armin, and Mikasa in deciding to enter the Training Corps. The chapter ended as Keith Shadis began the induction ceremony for the 104th Training Corps.

• Mikasa, Armin, Armin's Grandfather, and Carla persuaded Chen Si not to join the refugee mission, and Mikasa caught him trying to sneak away that night.
• The Royal Government's mission cost Armin's Grandfather his life and two hundred thousand refugees, easing the food crisis.
• A Mushroom-Headed Man ordered Reiner, Bertolt, Marcel, and Pieck to find Chen Si, while Reiner proposed joining the Training Corps to infiltrate the walls.
• After Armin's Grandfather died, Eren, Chen Si, Armin, and Mikasa decided to join the Training Corps, and Eren struggled to tell Carla.
• Keith Shadis addressed the new recruits at the 104th Training Corps induction ceremony and warned them that they were unprepared to fight Titans.

Chen Si watched Keith Shadis intimidate the recruits during their first training formation and drew Shadis’s attention by joking about his spit. The confrontation continued as Sasha Braus disrupted the roll call by eating and saluting with a sweet potato.

• Chen Si met Marco Bott and watched Shadis berate Armin Arnold, Thomas Wagner, Mina Carolina, and Jean Kirstein.
• Chen Si recited a poem mocking Shadis’s spit, so Shadis ordered him to run a hundred laps.
• Shadis questioned Marco and Connie Springer, criticizing Connie for saluting with the wrong hand.
• Sasha Braus ate a sweet potato during roll call and saluted Shadis with it in her hand.
• Shadis demanded to know why Sasha was eating the sweet potato, and she explained that it would taste worse after cooling.

Chen Si and Sasha endured Shadis’s punishment run, then stole food from the kitchen with Christa’s help. After sharing the meal and comforting Christa, Chen Si noticed Mikasa emerging from the shadows and was surprised she had appeared instead of the freckled girl he expected.

• Sasha misunderstood Shadis’s question about sweet potatoes and offered him a tiny piece, making Chen Si laugh and earn a punishment run alongside her.
• Chen Si and Sasha ran for hours until Sasha collapsed, then Sasha repeatedly snatched Chen Si’s warmed chestnuts.
• Christa brought bread and water, and Chen Si devised a plan for her to distract the head cook while he and Sasha stole food from the kitchen.
• Chen Si sent Sasha running through the woods as a wolf to draw the cooks away, then shared the stolen food with Christa and reassured her that he would treasure her.
• Sasha hurried back to camp with food, and Chen Si was surprised when Mikasa emerged from the shadows instead of the freckled girl he had expected.

Chen Si tried to determine why Ymir’s presence suggested the story had changed, while reassuring Mikasa and probing Reiner and Bertolt about their reactions to the fall of Shiganshina. After Eren and Jean made peace, Chen Si’s teasing left Mikasa happy and Jean heartbroken, and Eren announced he would grow his hair long.

• Chen Si worried that the world’s story had diverged and suspected Marcel, the Jaw Titan, might be an additional threat.
• Mikasa told Chen Si she had brought him food because she wanted to take care of him, and he thanked her.
• Reiner and Bertolt approached Chen Si, who recounted the horrors of Shiganshina to unsettle them and left them anxious.
• A bell interrupted Eren and Jean’s confrontation, and they made peace before Jean awkwardly complimented Mikasa’s hair.
• Chen Si praised Mikasa’s hair and teased Eren about growing his own, prompting Eren to declare that he would do so.

During the balance aptitude test, Chen Si realized Eren’s equipment was faulty and lent him his own, allowing Eren to pass. After Eren was mocked in the mess hall, Armin encouraged him to prove himself in the next test, while Chen Si thought he should seize the chance to show off.

• During the balance test, Chen Si slept while Mikasa held steady, and Eren struggled upside down as the instructors and trainees mocked him.
• That evening, Chen Si forgot to tell Eren that his equipment might be broken and went back to sleep while Eren practiced with Mikasa and Armin.
• After Chen Si suggested the equipment was the problem, Eren tried Chen Si’s gear and successfully passed the test.
• At dinner, Eren was mocked and insisted he would pass the next test, while Armin urged him to prove himself and Chen Si thought he should make the most of the opportunity.

Chen Si confronted Patrick after he mocked Eren’s mother, and Keith Shadis punished Patrick for causing a disturbance. Later, Chen Si, Eren, Armin, Reiner, and Bertolt talked about their origins and gazed at a moonlit lake, each thinking about home and the world beyond the walls.

• Chen Si clamped his hand over Patrick’s mouth and rebuked him for mocking Carla, while Eren and Mikasa reacted angrily.
• Armin and Marco pulled Chen Si away, and Patrick threatened revenge as the other recruits cheered Chen Si on.
• Keith Shadis ordered Patrick to run two hundred laps and warned him to leave if he failed the next day’s test.
• Bertolt asked Eren and Armin why they had joined the Training Corps, and Chen Si cryptically remarked that the land beyond the walls must be beautiful.
• Chen Si followed the group outside and privately thought that he and Bertolt were destined to be enemies.
• At the lake, Reiner said he would return to his hometown, and Chen Si murmured that he might be able to return too before Eren encouraged him.

Eren passed aptitude training, and Carla joined the camp as a cook, bringing warmth to the cadets’ mealtimes. Two and a half years later, Chen Si gained mastery of horseback riding and Vertical Maneuvering Equipment, while the 104th class entered its final training year.

• Eren passed the aptitude test with Chen Si’s belt, while Patrick failed and was expelled from the Training Corps.
• Keith told Carla that Eren had become a soldier, and Carla said she would always be proud of him.
• Carla began cooking at the camp, where Eren, Chen Si, Mikasa, and the other cadets gathered around her meals.
• In the final year of training, Chen Si used lightning to make a stubborn horse obey, named it Grass Mud Horse, and gained Horseback Riding Mastery.
• Chen Si rode confidently, Mikasa followed, and Eren managed to stay mounted as Keith marked Chen Si as exceptionally gifted.
• During later training, Reiner carried Armin’s weighted pack, and Chen Si gained Vertical Maneuvering Equipment Mastery before the cadets examined the training leaderboard.

Chen Si topped the 104th Training Corps’ Vertical Maneuvering Equipment test and was praised by Keith Shadis as a perfect soldier and leader. During hand-to-hand combat training, Annie overwhelmed Eren and Reiner before Chen Si fought back against her, leaving their sparring match unresolved.

• Chen Si finished the Vertical Maneuvering Equipment course in twenty-three seconds, beating Mikasa’s time and taking first place in the class rankings.
• Keith Shadis reviewed the cadets’ strengths and weaknesses and praised the 104th class’s exceptional performance.
• During hand-to-hand combat practice, Eren threw Reiner, while Mikasa sent several cadets flying and Chen Si watched from the sidelines.
• Reiner and Chen Si urged Eren to challenge Annie, but Annie quickly knocked Eren down twice and then defeated Reiner when he took his turn.
• Annie attacked Chen Si as he tried to leave, and he dodged her kicks before grabbing her ankle and swinging a fist toward her face.

Chen Si sparred with Annie, discussed the soldiers’ choices and hopes with her, and made a bet about their futures. Later, Eren and Jean clashed in the dining hall, where Eren threw Jean to the floor before a terrifying face appeared at the door.

• Annie threw Chen Si after he pulled his punch, and the two discussed humanity’s rules, hope, and their futures before agreeing to a bet.
• Mikasa challenged Annie, but Keith Shadis interrupted and ordered the trainees to run two hundred laps.
• In the dining hall, Eren argued with Jean over joining the Military Police Brigade, while trainees repeated profane slang they had picked up from Chen Si.
• Eren grabbed Jean, Mikasa separated them, and Eren used Annie’s shoulder throw to slam Jean to the floor.
• A pale, wide-eyed face appeared through the dining hall door.