Chapter Summaries

Mo Bai, a stranger who resembled Mo Hei, invited him to watch films in the Academy Auditorium to help ease his worries about his lost memories and identity. After watching several films, Mo Hei realized he still had tastes of his own and asked Mo Bai why he had chosen to help him; Mo Bai instead asked what kinds of films he liked.

• Mo Hei asked Mo Bai who he was, and Mo Bai hid his hurt behind a friendly smile.
• Mo Hei confided that he was troubled by how little he knew about his past and feared he might be a monster.
• Mo Bai took Mo Hei to the Auditorium, using his Terminal to open it despite its usual restricted access.
• Mo Bai played several films, and Mo Hei discovered that he could still judge what he liked and disliked.
• Mo Hei asked why Mo Bai had brought him to watch films, and Mo Bai asked what kinds of films he liked.

Mo Bai took Mo Hei to watch a movie, and Mo Hei explained why he preferred stories about an ordinary protagonist who grew stronger through persistence. The two agreed to start as friends, leaving Mo Hei feeling that Mo Bai was someone he could trust despite his unanswered questions.

• Mo Hei told Mo Bai that his favorite movies were classic stories about a protagonist gathering allies, defeating the Demon King, and settling down.
• Mo Hei explained that he admired protagonists who proved themselves through effort, and Mo Bai listened as he opened up about the movie.
• Mo Hei asked why Mo Bai had helped him, and Mo Bai said it was because he thought Mo Hei was a lot like him.
• Mo Bai offered to be Mo Hei's friend, and Mo Hei clasped his hand and gave his name.

Mo Bai let Mo Hei leave the Auditorium determined to build an independent life at the Academy, while Mo Bai planned to help restore his memories later. After Mo Hei left, Losera confronted Mo Bai, and an unknown hostile presence arrived behind him.

• Mo Hei told Mo Bai he would not depend on him too much, and Mo Bai decided to let him grow independently.
• Mo Hei returned to his dorm, determined to become someone who could walk beside Mo Bai rather than remain his shadow.
• Mo Bai stayed in the Auditorium to watch another movie, and Losera arrived to question him about taking Mo Hei there without permission.
• Losera revealed that her memory-type Resonance Ability had made her notice something unusual about Mo Bai.
• Losera warned that her companion might not trust Mo Bai, as a cold draft and a familiar ringing announced a hostile presence behind him.

Losera and Feixue revealed their abilities and recruited Mo Bai to help stop the Lahai Luo disaster. After Mo Bai gave Losera Tacet Discs containing their shared memories, Feixue explained that the mission would involve Rover.

• Losera snapped her fingers and shut off the Auditorium cameras before discussing Dania, the Remnant Star Society spy, with Mo Bai.
• Losera revealed that Feixue could draw on possible futures and that she was a Memory Resonator who could read and preserve memories.
• Losera told Mo Bai that she had noticed a piece missing from her memories and suspected it had been deliberately erased.
• Mo Bai gave Losera Tacet Discs containing memories of their time together, and she began comparing them with her own recollections.
• Feixue told Mo Bai that Losera wanted him to join her and Rover in eliminating the source of the Lahai Luo disaster.

Mo Bai allied with Feixue and accepted Losera’s assignment to investigate Dania during the Day-Switching Festival. As he left the Auditorium, Losera reminded him to enjoy the festival as well as carry out his duties.

• Mo Bai asked Feixue whether she trusted him, and she admitted his ominous aura made her wary before agreeing to work with him.
• Losera explained that the Day-Switching Festival would take place in three days and asked Mo Bai to investigate someone while she and Feixue handled their festival duties.
• Mo Bai realized Losera wanted him to investigate Dania, whose identity as a Remnant Star Society member was already known.
• Mo Bai accepted the assignment, took back his Tacet Discs, and left the Auditorium.
• Losera urged Mo Bai to take a break and enjoy the festival, and he agreed.

Losera explained why she trusted Mo Bai and urged Feixue to relax before the final battle. Back in his former dorm, Mo Bai planned to deal with Dania and Mo Hei first, while keeping his other enemies and the Goddess in mind.

• Losera told Feixue that Mo Bai's footage, strength, and forced composure convinced her he was a capable student worth trusting.
• Feixue objected that Losera was sending a student to face dangerous threats, but Losera defended her decision and encouraged Feixue to relax.
• After Losera left, Feixue decided to watch a movie on the Auditorium screen.
• Mo Bai found his former dorm stripped of its decorations and reflected that Rover, Lynae, and Mo Hei still seemed drawn to him despite forgetting him.
• Mo Bai considered the Remnant Star Society, Aleph-1, Mahoraga, and the Goddess, then made Dania and Mo Hei his immediate priorities.

Dania rescued Siglica from students crowding her for help, then showed her a photograph of a strange owl that made her think of Napomo. Meanwhile, Mo Hei practiced controlling Nue with Mo Bai’s guidance, and Mo Bai sensed that she might eventually awaken her own Ten Shadows Technique.

• Dania used a burst of pink bubbles to pull Siglica out of the crowd of students seeking her help.
• In the Academy Garden, Dania urged Siglica to rest, then showed her a photograph of a large owl.
• Siglica said she hoped to photograph the bird herself someday and give the picture to Napomo, while Dania vaguely reassured her about Napomo’s injuries.
• Mo Hei summoned Nue and gave it an order, then told Mo Bai that controlling the Shikigami felt all right.
• Mo Bai sensed ten faint lights within Mo Hei and thought she might awaken her own Ten Shadows Technique.

Mo Hei chose to approach Dania and Siglica herself rather than monitor them from afar, while Mo Bai left her to complete the assignment independently. At Lu Hess's hidden base, Losera began searching Charon's belongings for memories that could reveal the Remnant Star Society's plans in Lahai Luo.

• Mo Hei questioned why Mo Bai had assigned her to watch Dania and Siglica, and he admitted he had history with Dania.
• Mo Hei decided she wanted to meet Dania and Siglica herself, and Mo Bai let her go while Nue kept watch.
• Mo Hei promised to finish the mission and make friends, then Mo Bai left the area through the shadows.
• Rover and Mornye brought Charon's body to Lu Hess's secret base, where Lu Hess examined it and noted its powerful healing ability.
• Losera arrived with Feixue and began tracing memories through Charon's mask to uncover the Remnant Star Society's plans in Lahai Luo.

Losera revealed that the Remnant Star Society planned another operation in the Academy’s Dark Side, and she arranged for Rover and Mo Bai to confront them there. Before she could contact Mo Bai, an urgent call reported that he had disappeared.

• Losera told Rover that the Remnant Star Society planned to return to the Academy’s Dark Side, where its President had forgotten an earlier operation but Mo Bai still remembered it.
• Losera proposed sending Mo Bai into the Sonoro with Rover, and Mornye supported the plan based on his experience and abilities.
• Rover agreed to fight alongside Mo Bai, Hess approved, and Feixue reluctantly accepted after Losera reassured her.
• As Losera prepared to contact Mo Bai, one of her subordinates called and reported that Mo Bai was gone.

Mo Bai met with the President of the Remnant Star Society through her White Rabbit, and she offered to help him make Rover more perfect. He refused, blaming the Society’s past treatment of him and its incomplete investigation, then left as his communicator rang.

• Mo Bai followed the President’s White Rabbit into the underground grasslands and exchanged barbs with the President, who spoke through the rabbit.
• The President used Christopher’s script and scattered clues about Mo Bai to appeal to his desire to help Rover and asked him to accept the Society’s help.
• Mo Bai refused and used Rabbit Escape Shikigami to pin down the White Rabbit.
• Mo Bai told the President that the Society had treated him badly and had not investigated his past thoroughly enough.
• The President released her control over the White Rabbit, and Mo Bai mocked it before his communicator rang.

Mo Bai captured the White Rabbit and contacted Losera, who sent him coordinates and asked him to bring it over. At Star Torch Academy, Mo Hei helped Siglica photograph Nue before a new Roy student approached.

• Mo Bai told Losera that the Remnant Star Society's president had sent the White Rabbit to find him, and Losera asked him to bring it to her coordinates.
• Losera told Mo Bai that Rover wanted to speak with him because he had not reported his encounter with the Remnant Star Society right away.
• Siglica waited with Dania for the Strange Bird to return, while Mo Hei watched them and eventually stepped out to speak with them.
• Mo Hei thanked Siglica and Dania for showing him around the Academy, and Siglica photographed Nue as it passed overhead.
• A petite Roy student with long gray hair and bright green eyes approached Mo Hei, Siglica, and Dania.

Mo Hei joined Siglica, Dania, and Napomo at the Academy Arcade, where she enjoyed their company while quietly keeping watch on Dania and sensing something odd about Napomo. After they agreed they were friends and took a group photo, Mo Hei noticed an older photo of the trio labeled “Friends for Life.”

• Siglica enthusiastically introduced Napomo to Mo Hei, and Napomo invited Mo Hei to spend time with the group.
• Mo Hei accepted the invitation, and Dania led everyone to the Academy Arcade because Mo Hei could not leave Academy grounds.
• Mo Hei played a game with Napomo while secretly using Nue to watch Dania, and she found Napomo more suspicious than Dania.
• Napomo reminded Siglica to ask whether Mo Hei considered them friends, and Mo Hei agreed that they were.
• Siglica took a photo of the four of them and added it to her keepsake album beside an older photo of herself, Dania, and Napomo labeled “Friends for Life.”

Mo Bai and Mo Hei discussed their surveillance of Dania and their suspicions about Napomo, and Mo Bai identified a possible lead to investigate. As the Day-Switching Festival approached, Mo Bai abruptly left to avoid explaining his two-day absence, leaving Mo Hei disappointed that their conversation had ended.

• Mo Bai found Mo Hei speaking over a Terminal and asked about the investigation into Dania.
• Mo Hei reported that Dania and Siglica showed no suspicious behavior, but shared photos of Napomo, who still seemed suspicious to them.
• Mo Bai recalled that Napomo had received treatment in Lu's Infirmary and said he had someone in mind who would be free the next day.
• Mo Hei asked where Mo Bai had been for the past two days, but Mo Bai declared the surveillance task over and left through the shadows.
• Mo Hei stamped a foot and admitted he had only wanted Mo Bai to stay and talk longer.

During the Day-Switching Festival, Mo Hei learned that Siglica had gone into the Dark Side of the Academy and went to find her, while Dania worried she had helped the organization's plan. Mo Bai spent the festival discussing Napomo's report and Mo Hei with Lu Hess and Principal Losera.

• The Academy and the Roy people celebrated the successful launch of the artificial sun beneath Lahai Luo, while the strengthened Tunneler's heart remained in storage.
• Engineering students displayed their strange gadgets at the festival, including the department's much-discussed drivable automatic barbecue piano.
• Mo Hei found Dania at a stall and learned that Siglica had gone to investigate the Dark Side of the Academy.
• Dania pointed Mo Hei toward the Dark Side, then worried that she had sent her there to serve the organization's plan and hoped the Rover would help.
• Mo Bai met with Lu Hess and Principal Losera in the Infirmary to discuss Napomo's report and Mo Hei.

Losera helped Mo Bai understand that supporting Mo Hei’s independence did not mean pushing her away, and a message showed Mo Hei seeking out Siglica on her own. Doctor Lu then gave Mo Bai Napomo’s records and a hair sample, allowing him to confirm he could counter the Remnant Star Society President’s Thousand Faces ability.

• Losera showed Mo Bai an Echo plushie belonging to Mo Hei and a recording of Mo Hei enjoying the Arcade with Siglica and others, while revealing her loneliness after they parted.
• Losera advised Mo Bai that helping Mo Hei become independent did not require him to distance himself from her.
• Losera showed Mo Bai a message saying Mo Hei had gone to the Academy’s Dark Side to look for Siglica, easing his worries.
• Doctor Lu gave Mo Bai Napomo’s physical data and a hair sample, explaining that he considered the Remnant Star Society his problem too.
• Mo Bai had the Divine Dogs examine Napomo’s hair and compared her data with Charon’s, concluding that he could counter the Remnant Star Society President’s Thousand Faces ability.

Mo Hei searched the Academy's Dark Side for Siglica while the President of the Remnant Star Society discovered a strange new monster and changed her plans. Rover, Siglica, and Abu faced similar creatures, while Mo Hei ran toward Siglica's trail.

• Mo Hei entered the Academy's Dark Side to find Siglica, wondered why it showed no darkness from his own heart, and ran on after hearing heavy footsteps nearby.
• The President reflected on the failure of her plans after the Artificer was destroyed and Mo Bai took the White Rabbit, then spotted a monster muttering about student troubles.
• The President saw Mo Hei racing through the Sonoro, snapped her fingers, and vanished with the monster.
• Rover and Siglica faced grotesque monsters that complained about students' everyday problems, while Abu hid from their smell.

Mo Hei, Siglica, and Rover escaped a Sonoro filled with Cursed Spirits, then joined Mo Bai and Principal Losera to investigate how the monsters appeared. Mo Bai linked them to Mo Hei’s Cursed Energy and the Academy’s negative emotions, while Rover suspected the Remnant Star Society, leaving Mo Hei worried she had caused the crisis.

• Mo Hei arrived on Nue and rescued Rover and Siglica from the multiplying monsters inside the Sonoro.
• After escaping through the alarm clock, Mo Hei hurried from the dormitory to find help, but hesitated to rely on Mo Bai again.
• Siglica introduced Rover to Mo Hei, and the three went to Principal Losera’s office, where Mo Bai was already discussing the crisis.
• Mo Bai explained that Mo Hei’s unstable Cursed Energy had resonated with the Academy’s negative emotions and created Cursed Spirits.
• Rover suspected the Remnant Star Society had caused the unusually large outbreak, while Mo Hei feared she was responsible.

Mo Hei and Siglica agreed to enter the Academy's Dark Side to face the enemy and help the trapped students. In the garden, Mo Hei confided her doubts to Mo Bai and asked what they had been to each other in the past.

• Losera told everyone that someone had tampered with the Dark Side and that only Mo Hei and Siglica could enter under the enemy's rules.
• Mo Hei volunteered to enter because she sympathized with the students, and Siglica agreed to go with her.
• Losera set their entry for that afternoon and arranged for them to rest while she asked Rover to stay behind.
• Mo Hei went to the garden to think, while Siglica went to the Cafeteria and confided in Dania.
• Mo Bai joined Mo Hei, apologized for avoiding her, and listened as she questioned her body, abilities, memories, and connection to the Dark Side.
• Mo Hei asked Mo Bai what they had been to each other before.

Mo Bai revealed to Mo Hei that they had known each other before, and she asked him to recount their past before they went to Sonoro. At the Academy, Siglica confessed to Dania that she feared the students’ expectations more than the enemies, and Dania told her to run away.

• Mo Bai demonstrated the Ten Shadows Technique and Cursed Technique Reversal to Mo Hei, confirming that they had been close before.
• Mo Hei asked Mo Bai to tell her every detail of their time together before they went to Sonoro, and he agreed.
• Siglica told Dania that she and Little Hei would enter the Academy's Dark Side after an incident there.
• Siglica admitted she feared the hopes of the students inside more than the enemies, and Dania urged her to run away.

Losera sent Mo Hei and Siglica into the Academy's Dark Side to help students trapped in Sonoro, with White Rabbit set to guide them. Siglica confronted Cursed Spirits born from her buried pressure, while Mo Hei found the spirits around him passive.

• Losera explained that White Rabbit would guide Mo Hei and Siglica through the Dark Side and told them to protect the students until help arrived.
• Mo Hei and Siglica entered the Academy's Dark Side without hesitation.
• Siglica recalled Dania's advice and recognized that she had turned her classmates' kind words into a standard she felt pressured to meet.
• In chaotic Sonoro, Siglica ran from pursuing Cursed Spirits and cut down one that blocked her path.
• Mo Hei found the Cursed Spirits near him lying quietly and wondered why they showed him no hostility.