Chapter Summaries

Chen Nian learned that Zoe Mogwin, whose writings he had accidentally given to Philia, was Philia’s late sister and Chen Si’s wartime lover. At Chris Wenyard’s grave, Levi and the others mourned their friend, and a goose appeared to comfort Sasha before flying away.

• Chen Nian gave Philia a poetry collection compiled from Zoe Mogwin’s writings, and Philia explained that Zoe was her deceased older sister.
• Philia told Chen Nian that Zoe had loved his father, Chen Si, but she did not know whether he had returned her feelings.
• Philia and the others visited Zoe’s grave in the Dandelion Cemetery, where she placed the poetry collection beside the headstone.
• Levi, Lilith, Sasha, Connie, Jean, Yasuo, and Petra visited Chris Wenyard’s grave, and Levi recognized that Mike had also left flowers.
• Sasha offered Chris cosmetics, snacks, and sunglasses, and a goose touched Sasha’s cheek, wiped away her tears, and flew off wearing the sunglasses.

Ten years after Chen Si disappeared, Mikasa and Annie continued to visit the place where he had vanished, while Eren searched the world for him. Annie finally accepted that Chen Si would not return and chose to leave, but Mikasa remained determined to wait for him.

• Armin told Jean and Levi that Eren had traveled the world and still blamed himself for Chen Si's departure, and Levi asked them to report any news of him.
• Chen Nian stayed behind to ask Erwin about his father, while the others prepared to return to their posts and meet in Marley the following month.
• Eren searched the universe for Chen Si and vowed to find him.
• At Godfall Valley, Mikasa told Chen Si about their friends and his son, and said she would keep waiting for him.
• Annie told Mikasa that her father had arranged a marriage for her, said goodbye to Chen Si, and left after ten years of waiting.
• Mikasa stayed by the cliff for the rest of the day, speaking to Chen Si's clothes and imagining where they might live if he returned.

Chen Si woke in a modern Chinese hospital after believing he had spent more than a decade in the world of Attack on Titan, and reunited with his worried parents. He discovered he had retained extraordinary strength and, back at school, asked his homeroom teacher to switch to the sports admissions track.

• Chen Si woke in a hospital in Magic City and learned he had been unconscious for a day and a night, while his memories of Mikasa and Historia seemed like a hallucination.
• Chen Si reunited with Chen Tian Nian and An Xia, who told him he had gone missing for a month and promised not to pressure him about the college entrance exam.
• After the doctors removed his IV needles, Chen Si shattered a floor tile with his foot and dented a metal bed rail with his hand.
• Chen Si returned to school, struggled with his lessons, snapped a pen, and drew classmates' attention with his changed appearance and strange references to the Eldia Calendar.
• Chen Si told his troubled homeroom teacher that he wanted to switch to the sports admissions track.

Chen Si used his extraordinary speed to gain admission to Magic City Sports University, then broke the world record in Paris and won an Olympic title for China. After seeing his parents’ pride, he collapsed backstage as memories of the battlefield overwhelmed him.

• Chen Si unexpectedly ran the hundred meters in 6.13 seconds at Magic City Sports University, and a monitored retest confirmed his astonishing speed.
• The university president offered Chen Si exceptional admission, and the sports association issued him a first-class athlete certificate.
• Chen Si overheard that his parents still owed money for searching for him and treating him, and he resolved to make them proud through athletics.
• Chen Si flew to Paris and ran the hundred meters in 7.5 seconds, breaking the world record and provoking worldwide reactions.
• Fifteen days later, Chen Si won an Olympic athletics title in Tokyo, but memories of people dying on the battlefield overwhelmed him, and he collapsed in the shower room.

After returning to his original world, Chen Si struggled with loneliness and searched for traces of Mikasa, then learned that Order had survived the space-time turbulence. Order explained that Eren Yeager’s free will had brought Chen Si home, and Chen Si asked whether Order could help him return to the Titan world.

• Chen Si searched online for a Mikasa cosplayer and flew to Seoul, where he was recognized by reporters and accepted a television appearance for six million dollars.
• At the studio, Chen Si met host Lee Ji-eun and asked about Zhang Surou; he told Lee Ji-eun that Surou had gone on a long journey and might return someday.
• After returning home, Chen Si heard students discussing Mikasa’s marriage and wondered whether she would fall in love with someone else.
• Order contacted Chen Si and explained that it had survived by absorbing energy from Grotesque, while Eren Yeager’s free will had opened a passage through the space-time turbulence.
• Chen Si asked Order whether it could open a passage back to the Titan world so he could see them again.

Chen Si decided to cross space and time to see Mikasa and Historia, despite learning that ten years had passed in their world and that the journey would consume his Ackerman Bloodline’s power. Order sacrificed herself to send his consciousness projection into the space-time turbulence, leaving Chen Si on his way to the world he had left.

• Chen Si begged Order to help him return, and she explained that she could only send a consciousness projection by using energy from both worlds.
• Order told Chen Si that a year had passed in the other world for every six days in his current one, meaning at least ten years had gone by, and warned that crossing would cost him his Ackerman Bloodline’s power.
• Chen Si replied to messages from his family and others, then chose to go see Mikasa and Historia even if he could only look at them once.
• Order manifested as a little girl and opened a rift in space to send Chen Si’s consciousness through.
• Order turned into a sword of light, broke open space, and propelled Chen Si into the space-time turbulence before vanishing.

Erwin urged Chen Nian to approach the truth about his father with an open mind, but their conversation was interrupted when Chen Si’s statue began to glow. Meanwhile, Chen Si appeared in Chang’an City, where Sally ran through him without seeing him.

• Erwin and Helena shared a tender moment, and Erwin invited her to dine with Levi’s family.
• Chen Nian pressed Erwin to reveal the truth about his father, and Erwin challenged him to consider that Chen Si might have been flawed or cruel.
• Hange burst into Erwin’s office to report that Chen Si’s statue was glowing, prompting Erwin to order a citywide lockdown.
• Crowds gathered around the illuminated statue as the Church of Thunder mobilized to Central Avenue.
• Chen Si appeared in Chang’an City, where Sally collided with him without making contact and wondered what she had seen.

Chen Si visited Zoe and Chris’s graves, then returned to the world where Mikasa was preparing to leave for Marley. A light appeared at the Marshal’s statue, and Chen Si reappeared before Hange and Chen Nian, who revealed that his mother was Historia Reiss.

• Chen Si discovered Zoe’s poetry collection, learned she had loved him, and mourned her at her grave before visiting Chris’s grave.
• A White Tibetan Mastiff barked at Chen Si and brought sunglasses to Chris’s grave, prompting him to leave.
• Mikasa rejected Jean’s plea to stay and drove away, but stopped after seeing a brilliant light near the Marshal’s statue.
• Chen Si appeared beside Hange and Chen Nian at the sealed statue site, and Hange recognized him.
• Chen Si questioned Chen Nian about his mother, and the boy said her name was Historia Reiss.

Chen Si reunited with the Survey Corps as a transparent projection, revealing that he had returned after sixteen years had passed for his friends. The reunion left his former comrades stunned and confused about why he had not aged.

• Chen Si told Chen Nian that he was his father, and Hange fired a rally signal to summon the Survey Corps.
• Yasuo, Sasha, Hitch, Reiner, Pieck, Armin, and other Federation members responded to the highest-priority rally order.
• Chen Si explained to Erwin and Hange that he was present only as a projection and had not physically come to their world.
• Sasha tried to hug Chen Si but passed through him and fell, while Hange reminded the others about Zeyechuan and his inherited ability.
• Chen Si realized that sixteen years had passed and noticed how much older Sasha, Connie, Erwin, and Hange had become.
• Jean entered the reception room, saw Chen Si, and asked whether he was alive or a ghost.

Chen Si returned as a projection and reunited with Mikasa and the people who had known him, including his son, Chen Nian. As his friends welcomed him back, Jean pleaded with him not to leave Mikasa suffering, while Chen Si wondered whether she should keep waiting for him.

• Chen Si appeared before Jean, Connie, Sasha, and Mikasa, but Mikasa could not touch him because he had no physical body.
• Chen Si apologized to Mikasa for returning only as a projection, and she told him that seeing him could never be an intrusion.
• Armin, Mina, and Yasuo greeted Chen Si, and Yasuo tearfully told him about his achievements as Commander of the Survey Corps.
• Chen Si learned that Chen Nian was his son and that Historia had named him Nian because she missed Chen Si.
• Sasha proposed a welcome party, while Jean told Chen Si that Mikasa had waited eleven years and asked him not to let her down.
• Mina went into the next office and called Marley as Chen Si worried about Mikasa's future.

At the opening of Philia’s hotel, Chen Si reunited with old friends and learned that Historia had not arrived. When a woman entered the hall, he froze, leaving her identity and their meeting unresolved.

• Niccolo prepared an extravagant feast for Sasha’s friends, while Pixis and Zackly rushed into the hotel for wine and a room.
• Paradis’s former heroes and current leaders gathered at the hotel to welcome Chen Si, who had returned after ten years.
• Chen Si learned Philia had stayed away, then caught up with his friends and met Lilith, who blushed when Hannes teased her about marrying Chen Nian.
• Anka worried that Pixis’s health was failing, and Chen Si asked whether Historia would come to the gathering.
• More than twenty jets flew overhead as the doors opened and a woman’s heels clicked across the hall; Chen Si stared at her, trembling and unable to move.

Historia arrived in a wedding gown and asked Chen Si to marry her, and he agreed. As their banquet began, Annie risked flying a stolen fighter jet into the hotel airspace to see Chen Si, leaving the reunited group facing the consequences of her unauthorized arrival.

• Historia entered the hall in a wedding gown and asked Chen Si to marry her, and he transformed into a groom and accepted.
• Mikasa watched Chen Si and Historia reunite, content simply to spend more time by his side.
• Yasuo ordered fighters to intercept an approaching aircraft and to open fire if it refused to stop.
• Annie parachuted onto the hotel’s glass roof, broke through, and revealed herself to the shocked guests.
• Annie explained that she had stolen a plane because she heard Chen Si had returned, then froze when she saw him.

At Historia and Chen Si’s wedding, Chen Si was interrupted while preparing to say goodbye to Mikasa, Historia, and Annie, and admitted he could stay for only twenty-four hours. Historia urged everyone to enjoy their brief time together, and as the celebration continued, Armin called for Eren, who appeared before him.

• Philia arrived with armed security and reunited with Yasuo as the Survey Corps’ tactical squad left the rooftop.
• Philia questioned Chen Si about his feelings for Zoe, and he said he missed her and would never forget her, easing Philia’s doubts about her sister’s love.
• A global broadcast announced Historia and Chen Si’s marriage, and Chen Si told Historia, Mikasa, and Annie that he could stay for only twenty-four hours.
• Historia asked Chen Si to set aside his farewell and enjoy their remaining time together, and guests offered wedding gifts, including Winston’s Rothschild family.
• Armin shouted for Eren, and Eren appeared in front of him in a flash of light.

Eren reunited with Chen Si after searching for him for ten years, and the friends shared a feast before Pixis died peacefully. As Chen Si prepared to leave, Eren showed him a second world filled with people they had lost.

• Eren embraced Chen Si and apologized while their friends watched, then joined them at the feast.
• Chen Si explained that time passed differently in his world, and the friends took a group photograph together.
• Pixis said farewell to Chen Si and died surrounded by his former subordinates and friends.
• Chen Si spent his remaining hours with his loved ones and prepared to leave the world.
• Eren projected a second world where Marco, Mr. Ackerman, Carla, Mrs. Ackerman, and Grisha were alive, leaving Chen Si stunned.

Chen Si said his farewells to his friends and family before leaving, sharing his hard-won lessons and urging them to face history and live without being ruled by regret. Historia took Chen Nian home and broke down in tears, while Chen Si remained in the garden to spend his last moments with Mikasa and Annie.

• Eren explained that Chris had given her life to make the Paths function, and said he could visit his parents and Mikasa's parents there.
• Chen Si urged Yasuo to cherish Philia and praised Erwin for recording the crimes and achievements of both Marley and the Eldia Empire in history books.
• Chen Si told everyone that their efforts might not prevent the world from repeating its mistakes, then gave Chen Nian advice about courage, gratitude, and regret.
• Historia encouraged Chen Si to spend his remaining time with Mikasa and Annie, then took Chen Nian away after apologizing for taking too long to understand him.
• Inside the Royal Limousine, Historia trembled and sobbed, and Chen Nian began to understand his parents' love.

Chen Si said goodbye to Mikasa and his friends before his projection faded, then returned to Earth grieving their separation. Later, Mikasa entered a new world through a system-created wormhole and reunited with Chen Si in Magic City.

• Chen Si told Annie and Mikasa to move forward without him, and Mikasa promised to try to let go and find happiness.
• Chen Si embraced Mikasa one last time, then vanished into specks of light after saying goodbye to his friends and the world.
• Chen Si awoke in an alley in China and, realizing only thirty minutes had passed, collapsed on a bench in grief.
• Many days later, Chen Nian finished reading a history book and reflected on his elusive father, Chen Si.
• Mikasa activated a system on the beach, entered a wormhole to reach Chen Si's world, and vowed to protect him.
• Two days after returning to Magic City, Chen Si found Mikasa's red scarf at a bus stop and offered it back; Mikasa asked him to put it on her.

The author explained the heroines’ feelings for Chen Si and why their relationships with him unfolded differently. The account ended with Hitch as one of many women who admired him after meeting him once.

• The author explained that Historia loved Chen Si but became a Queen who could remain herself, and that she reunited with him in the end.
• The author described Mikasa’s devotion to Chen Si as profound and said he would not have let her suffer through a harem relationship.
• The author explained that Chris had feelings for Levi and fondness for Chen Si, while her kiss with Mike came from gratitude and impulse.
• The author recounted how Annie cherished Chen Si’s affection but let him go after he rejected her attempt to make him stay.
• The author described Zoe’s love for Chen Si, her choice to try to kill him, and how she ultimately let him escape and hid her feelings in her writing.
• The author characterized Hitch as one of many women who admired Chen Si after meeting him.

Chen Si and Mikasa searched for a way to resolve her lack of legal status, and Mike helped her qualify for a U.S. residency interview. Mikasa obtained U.S. citizenship, but her escape from pursuers reinforced the FIB’s belief that China had created a genetically enhanced human, prompting U.S. preparations for a possible crisis.

• Chen Si and Mikasa discussed applying for a special residence permit and began listing the documents they would need.
• Chen Si received a message revealing a solution, and Mike’s humanitarian asylum application secured Mikasa eligibility for a U.S. residency interview.
• Chen Si brought Mikasa to the U.S. embassy, where she obtained legal citizenship and became a U.S. national.
• Mikasa sensed pursuers after they left the embassy and used electric arcs to knock them unconscious, helping her and Chen Si escape.
• The FIB concluded that China was protecting Chen Si and began comprehensive strategic preparations based on its belief that he was a Chinese-developed genetically enhanced human.

Chen Si brought Mikasa to meet his parents, who accepted her, while a Marleyan officer secretly examined an old Marley Empire insignia. Eren appeared in Tokyo, learned that Chen Si was there, and saw news about a country trapped behind walls, leaving him staring at the familiar sight.

• Chen Si introduced Mikasa to An Xia and Chen Tian Nian, and his parents welcomed her.
• An Xia served Mikasa tea and snacks, and the family shared dinner together.
• A Marleyan officer opened a safe and took out a forbidden insignia of the Marley Empire.
• Eren appeared in Tokyo and was mistaken for someone cosplaying him at an anime convention.
• Eren saw a news report about Chen Si, then heard about Ba Country being trapped behind walls and reacted to the sight.

Chen Si Ackerman, a brutal teenage Military Police captain empowered by a system, agreed to help Erwin Smith locate Levi and Chris in the Underground District. During the confrontation, Chris’s strange power briefly stopped Mike, but Chen Si struck her down and left the encounter in chaos.

• Chen Si recalled how he gained Ackerman powers, became Kenny’s disciple, and grew stronger by killing people across the Royal Capital.
• Erwin Smith asked Chen Si for information about the Underground District and the outlaws Levi and Chris, and Chen Si agreed to go with him.
• In the Underground District, Mike subdued Furlan and Isabel while Levi and Chris fought back against Erwin and Mike.
• Chris’s gray-eyed power halted Mike long enough for Levi to kick him away.
• Chen Si appeared before Chris and slapped her hard enough to send her crashing to the ground.