Vol. 1Island Trial and Identity Exam

Gu Heng shaped Class D’s discipline and strategy through the island-survival exam, helping the class finish second. During the Identity Grouping exam, he kept Class D from settling on an unverified answer, but an anonymous post turned their silence into apparent confirmation.

  • Gu Heng warned Horikita that Class D would lose its points, then helped her and Hirata establish shared discipline rules.
  • Gu Heng organized study groups and helped resolve the Sudo dispute, while Class D chose Horikita as its public leader for the island exam.
  • Gu Heng divided Class D’s island-exam duties and revised its plans as the rules and conditions changed.
  • Gu Heng arranged patrols and water searches, then discovered that Hirata’s rules explanation sheet was missing.
  • Gu Heng and Horikita used a false route plan and a decoy gathering point to mislead Class C after a forged page cost Class D points.
  • Horikita became Class D’s public representative while Gu Heng took the undisclosed leader role and traded limited intelligence with Hashimoto.
  • Gu Heng helped Class D finish the island exam in second place, then joined the Rabbit Group with Sakura and Yukimura for Identity Grouping.
  • Gu Heng kept Class D’s response unresolved amid leaked records and anonymous claims, but an anonymous post presented its silence as proof.
Chapters 1–102 Read from Ch. 1

Arc 1Class D Takes Shape

Gu Heng predicted Class D would lose its monthly points, then organized the class to contain misconduct, protect Sudo, and improve its academic results. As an island-survival exam approached, Horikita took the public leadership role while Gu Heng and Hirata shared responsibility for rules and class unity, drawing attention from Ryuuen and others.

  • Gu Heng warned Horikita that Class D would receive no points, and after the prediction came true he persuaded the class to accept shared discipline rules with Horikita keeping records and Hirata mediating.
  • Gu Heng investigated the rumors surrounding Sudo’s fight with Class C and helped establish it as a mutual conflict rather than one-sided violence, while Ayanokoji revealed he had planted a rumor to see who reacted.
  • Gu Heng arranged study groups for the placement assessment, and Class D remained last but improved its basic-question completion rate and narrowed the gap with the other classes.
  • After the school announced an island-survival exam, Class D chose Gu Heng, Horikita, Hirata, and Ayanokoji as temporary liaisons, and Gu Heng persuaded Horikita to lead publicly while he handled rules and assignments.
  • Hirata set terms for supporting Gu Heng’s plans, insisting that he be told the bottom line and warned if a quick result might harm a group of classmates, and Gu Heng agreed.
  • Sudo backed down when Horikita threatened to record him, and she also recorded two students who had provoked him, showing that the class rules applied to everyone.
  • Ayanokoji warned Gu Heng that Manabu Horikita and Class C were watching the rules, while Gu Heng received notes hinting at a new price and Ryuuen’s questions about who supported Class D’s public face.
Chapters 1–25 Summaries Read

Arc 2The Island Coordination Trial

Gu Heng organized Class D through the island exam’s shifting rules, resource shortages, and pressure from Class C while trying to make the class manage more of its own work. By the end, Class D had secured water and begun night patrols, but Gu Heng discovered that Hirata’s rules sheet was missing.

  • Gu Heng controlled what Class D revealed to Class C, and Ryuuen began probing the class’s division of responsibilities while Sakayanagi assessed Gu Heng’s potential.
  • Gu Heng organized Class D’s special-exam forms and work categories, limited Kushida’s authority after her misleading leadership claim, and divided the class into practical roles.
  • When the twice-daily zone refresh changed the exam’s demands, Gu Heng revised the plan, took responsibility for classmates’ distrust, and helped Class D secure an upper-middle position in the first rounds.
  • Gu Heng negotiated for Class A’s route and supply information while Hirata, Horikita, and other classmates increasingly handled morale, discipline, and camp duties themselves.
  • During a dynamic evaluation, three students took a wrong forest fork, but Sudo and Ayanokoji found them and got everyone checked in before the deadline.
  • Gu Heng reorganized Class D’s move to a new base, managed an unconfirmed supply request, and sent teams to find water as Ryuuen’s group tried to provoke Sudo.
  • Sudo drew Ishizaki aside so Ike Kanji could confirm the nearby water source, and Gu Heng later rested Sudo and Ike while Class D prepared its night roster.
  • Gu Heng prevented Karuizawa from being forced into the front patrol position, redistributed night duties, and discovered that Hirata’s rules explanation sheet was missing.
Chapters 26–52 Summaries Read

Arc 3The Decoy and the Leader

After a forged route page cost Class D points, Gu Heng and Horikita tightened their procedures and used decoys and rotating assignments to shield the class from Class C’s probing. As the leader-guessing phase began, Horikita took the public representative role while Gu Heng became the undisclosed leader, then he traded limited intelligence with Hashimoto and headed back to camp.

  • Gu Heng found signs of a leak in Class D’s internal paperwork, and he, Horikita, Hirata, and Yukimura created a false route plan to trace it without exposing real movements.
  • Horikita gave Kushida a decoy gathering point, and the class’s separate actions led Ryuuen to investigate the false destination rather than Class D’s actual plans.
  • Gu Heng and Hirata reorganized Class D’s patrols and backups as Ryuuen tested the boundary and studied who filled in for each position.
  • Horikita challenged Gu Heng’s treatment of classmates as replaceable, and Ayanokoji brought back a damaged Class C route sheet that circled Gu Heng and Horikita.
  • Horikita registered as Class D’s public representative while Gu Heng became its final-stage leader, and the school recorded the roles separately.
  • Class C submitted its leader guess for Gu Heng, but Horikita maintained control of Class D’s public confirmations and kept its internal arrangements undisclosed.
  • Gu Heng followed an anonymous invitation to a Class A observation point, where Hashimoto explained Sakayanagi’s offers and traded him a public-observation record for limited intelligence about Class C.
Chapters 53–77 Summaries Read

Arc 4The Rabbit Group Exam

Class D finished the island exam in second place, then Gu Heng entered the Identity Grouping exam and tried to keep rumors, anonymous messages, and uncertain clues from becoming class conclusions. The stretch ended with Class D closing its external response field while an anonymous post twisted its silence into an admission.

  • Gu Heng helped Class D move to the eastern confirmation point, where Horikita finalized their submission and the settlement confirmed their second-place finish.
  • Sakayanagi took interest in Gu Heng’s methods, Ryuuen resolved to target his influence over others, and the students were sent back to the cruise ship for Identity Grouping.
  • Gu Heng joined the Rabbit Group with Sakura and Yukimura, tracked discussion and submission notices, and established records that separated verified facts from speculation.
  • After Kushida’s internal report number was leaked as supposed confirmation, Gu Heng sealed the report, restricted Karuizawa’s personal observations, and declined to use her as an entry point.
  • Gu Heng exchanged limited facts with Ichinose and recorded Shibata’s claim that several false answers would circulate, then persuaded Shibata not to submit and warned Yukimura to verify Class C information.
  • A false record under Gu Heng’s name linked Rabbit Group’s privileged person to Class C, and Gu Heng preserved it while continuing to separate anonymous claims about Karuizawa from verified evidence.
  • As anonymous messages and attempted submissions accumulated, Horikita refused to endorse an unverified answer, Karuizawa set boundaries around references to her, and Gu Heng kept Class D’s answer unresolved.
  • Horikita withdrew Class D’s shared registration request, Gu Heng closed the class’s external response field, and an anonymous post claimed their silence proved the first person right.
Chapters 78–102 Summaries Read
Volume 1 of 2