Chapter Summaries

Chapter Summary: “Rules Aboard the Cruise Ship”

Key Plot Points and Events

• After returning from the exhausting Uninhabited Island exam, the students are immediately given a new special exam: Identity Grouping.
• Students are divided into twelve zodiac groups, with members drawn from different classes. Once assigned, groups cannot be voluntarily changed.
• Each group contains one hidden VIP, whose identity is revealed only to that individual.
• Group members may independently submit one guess identifying the VIP. Correct guesses earn Private Points and class benefits, while incorrect guesses cause deductions to the submitter’s class.
• If a group fails to identify its VIP, the VIP receives additional Private Points.
• The identities of submitters remain hidden until the exam ends, though the system will reveal whether a valid submission has already been made.
• Class D begins preparing for the exam, agreeing to exchange verified information about group assignments, discussions, unusual behavior, and submission notices rather than unconfirmed theories.
• Gu Heng warns that the ship’s open environment makes information unreliable: students can give different stories to different classes, and personal motives may be disguised as loyalty to the class.
• The first assignment is revealed: Gu Heng is placed in the Rabbit Group alongside Ishizaki Daichi of Class C. The remaining members are not yet shown.

Character Developments

• Gu Heng demonstrates a cautious, analytical approach. He recognizes that the exam is driven not only by deception but also by conflicting personal and class interests.
• Horikita takes responsibility for organizing Class D’s response but accepts that the class cannot impose a single strategy on mixed-class groups.
• Yukimura carefully studies the rules and clarifies the connection between individual rewards and class penalties.
• Ayanokoji points out that submission timing may provide clues, while also warning that timing could be manipulated.
• Hirata continues acting as a cooperative organizer by creating a temporary reporting system.
• Ishizaki’s placement in Gu Heng’s group immediately raises suspicion, suggesting that Ryuuen’s influence or Class C’s interest may soon become important.

Significant Themes

• Trust and unreliable information: With students spread across the ship, no class can fully control what its members say or whom they contact.
• Individual versus collective interests: Students must choose between protecting their class and pursuing personal rewards, especially since incorrect guesses harm the entire class.
• Information as power: Verified facts, timing, and behavioral patterns become more valuable than authority or group consensus.
• Manipulation and hidden motives: The exam encourages VIPs and ordinary students alike to present self-serving actions as if they benefit everyone.
• Loss of familiar control: Unlike the island, where Class D had a shared camp and clear resources, the cruise ship offers no secure territory or centralized structure.

Character Interactions

• Horikita, Yukimura, Hirata, Sakura, and Gu Heng discuss how Class D should handle communication and reporting.
• Gu Heng and Ayanokoji exchange observations about the importance—and possible manipulation—of submission timing.
• Gu Heng rejects the idea of making immediate unified submission policies, insisting that the class first gather facts.
• Horikita concludes that trust must be earned through demonstrated sacrifice or risk, not simply requested.
• Gu Heng’s assignment with Ishizaki establishes the first likely point of contact—and possible tension—between Class D and Class C.

Key Plot Points and Events

• The Rabbit Group roster is released, with three members from each class (A, B, C, and D).
• The first discussion is scheduled for 19:40 in the B-Level Public Rest Area 4.
• Gu Heng categorizes Rabbit Group members as 'Tradable' (Hashimoto), 'Misleadable' (Ishizaki), and 'Untouchable' (Sakura).
• Gu Heng briefly sees Karuizawa's name in the Snake Group roster, hinting at a potential connection.

Character Developments

• Gu Heng demonstrates strategic thinking by categorizing group members based on potential risks.
• Hashimoto shows caution in negotiation, not revealing Class A's intentions too early.
• Ishizaki openly expresses his intention to observe Class D's actions.

Significant Themes

• Information Control: Characters try to control the flow of information to gain an advantage.
• Alliances and Rivalries: The formation of Rabbit Group highlights the complex dynamics between classes and individuals.
• Strategic Thinking: Characters employ various strategies to navigate the competition.

Character Interactions

• Gu Heng and Hashimoto exchange words, revealing their respective classes' intentions.
• Ishizaki confronts Gu Heng, expressing Class C's interest in Class D's actions.
• Gu Heng and Yukimura discuss the dynamics of Rabbit Group before the first discussion.

Key Plot Points and Events

• The Rabbit Group's first discussion begins with four minutes left.
• The reward system for correct/incorrect submissions and identifying the Preferred Person is revealed.
• The discussion focuses on identifying the Preferred Person and the class they represent.
• No clear consensus is reached, and the discussion ends with two primary suspects: Class D and Class B.
• After the discussion, a system notification reveals that someone from the group has attempted to submit an answer, but the target and submitter remain unknown.

Character Developments

• Gu Heng: He observes and analyzes the situation, noting the reactions of others, but does not submit an answer.
• Ishizaki: He suspects Class D and tries to pressure Gu Heng, being the first to attempt submission but not confirm it.
• Kanzaki: He suspects Class B and is willing to risk his class's points for personal gain.
• Hashimoto, Kamuro, Yukimura, Sakura: They observe and interact with others, gathering information but not yet committing to a submission.

Significant Themes

• Personal Gain vs. Class Loyalty: Characters weigh the temptation of personal points against the risk of damaging their class's reputation and points.
• Trust and Suspicion: The dynamics between classes shift as trust is tested, and suspicion spreads.
• Information Control: Characters try to control the flow of information to protect their interests or manipulate others.

Character Interactions

• Gu Heng and Ishizaki: They have a tense exchange, with Ishizaki trying to pressure Gu Heng and Gu Heng remaining neutral.
• Kanzaki and others: Kanzaki shares his suspicion about Class B, leading to further discussion and scrutiny of his class.
• Group dynamics: The group members interact, gathering information, and trying to outmaneuver each other while avoiding blame and risk.

Key Plot Points and Events

• A system notification appears, indicating someone attempted to submit an answer to the weight problem.
• Students discuss the implications of the attempt, with some speculating about who might have submitted.
• Gu Heng experiences a headache and notices changes in the weights, suggesting someone is trying to influence him.
• Kanzaki shares a screenshot of a supposed submission attempt, but Ibuki questions its authenticity.
• Gu Heng and Yukimura exclude Sakura's observation from their core return due to lack of verifiable information.

Character Developments

• Gu Heng starts experiencing headaches, which seem to be connected to the weights and his ability.
• Kanzaki shows initiative in pursuing the submission lead, while Ibuki demonstrates critical thinking by questioning the screenshot's authenticity.
• Sakura remains silent about what she saw, leading Gu Heng to exclude her observation.
• Ayanokoji observes Gu Heng's actions and offers advice, suggesting that the submission attempt might be a deliberate lie.

Significant Themes

• Information Control: Characters manipulate and withhold information to influence others' decisions and actions.
• Trust and Suspicion: Characters grapple with trust issues, as they suspect each other of hiding information or acting against their interests.
• Perception vs. Reality: Characters struggle to distinguish between genuine information and attempts to deceive or mislead them.

Character Interactions

• Gu Heng and Kanzaki work together to analyze the submission attempt, but Gu Heng excludes Sakura's observation, leading to tension.
• Ayanokoji offers guidance to Gu Heng, helping him question his assumptions about the submission attempt.
• Kanzaki and Ibuki engage in a brief debate about the screenshot's authenticity, showcasing their differing perspectives.

Key Plot Points and Events

• Gu Heng finds numerous temporary reports from Class D members on his terminal.
• He creates a new report chart with fields for confirmed facts, time of occurrence, submission prompts, and abnormal contact.
• Class D members start reporting unusual activities, such as anonymous messages and early submission attempts.
• Sudo confronts a student from another group about their interest in Rabbit Group's roster.
• Horikita and other students contribute facts to the report chart.
• Kushida brings a screenshot of an early submission attempt by Monkey Group.

Character Developments

• Gu Heng: He continues to prioritize facts and evidence over speculation, even when it might slow down the process. He's willing to include all groups in the reporting system to maintain transparency.
• Horikita: She initially questions Gu Heng's approach but eventually accepts the purpose of the new chart and contributes facts to it.
• Sakura: She provides new facts to Gu Heng, showing that she's willing to cooperate despite her initial reservations.
• Sudo: He's eager to confront other groups directly but respects Gu Heng's instructions to only ask for the facts.
• Kushida: She offers to compile information for Class D, potentially providing valuable insights but also raising questions about her motives.

Significant Themes

• The importance of facts and evidence over speculation and guesswork.
• The need for transparency and accountability in the investigation.
• The challenges of investigating in a new environment (the cruise ship) where traditional methods (like camp assignments) don't apply.

Character Interactions

• Gu Heng and Horikita: They have a tense but productive exchange about the new report chart and the role of facts in the investigation.
• Gu Heng and Sakura: Sakura provides new facts to Gu Heng, showing a willingness to cooperate.
• Sudo and Gu Heng: Sudo wants to confront other groups directly, but Gu Heng insists on sticking to the facts.
• Gu Heng and Kushida: Kushida offers to compile information for Class D, but Gu Heng is cautious about accepting it without proper verification and source attribution.

Chapter Summary: “Kushida Was the Go-Between Again”

Key Plot Points and Events

• Kushida negotiates with Gu Heng to collect and organize information from the Monkey, Snake, and Chicken Groups.
• Gu Heng establishes a strict four-field shared chart:
  • Time of occurrence
  • Submission notice
  • Unusual contact
  • Source record
• Discussion content and answer theories must remain separate from the shared chart. Original screenshots stay with their providers.
• Kushida receives one verifiable fact from Class D for every three properly registered outer-layer records. The exchange grants her access to information, but not unrestricted trust.
• Yukimura creates a read-only “Cold Backup” that preserves every version, timestamp, and operator. This prevents anyone from silently altering or deleting records.
• Kushida enters three records:
  • Monkey Group: A submission attempt at 10:07, followed by a public notice at 10:08.
  • Snake Group: An anonymous notice at 10:13 with an unverified relay chain.
  • Chicken Group: An anonymous notice at 11:24, directly relayed by a member.
• When Kushida tries to place the Monkey and Snake records into one chain, Gu Heng stops her because the connection is unproven. She removes the merge marker, leaving the entries as parallel facts.
• Gu Heng categorizes the sources as “Traceable,” “Direct relay,” and “Awaiting verification,” while deleting unsupported connecting lines between the incidents.
• A rumor spreads that the Monkey Group’s submission time proves its answer. Gu Heng, Horikita, and Hirata correct the wording:
  • Known: A submission attempt occurred.
  • Unknown: The submitter, answer, and affiliated class.
• The correction prevents several groups from forwarding an unverified conclusion.
• Kushida later offers a list of unusual contacts connected to the anonymous notices, including Morishita Ai, Hayakawa Takuya, and an unnamed girl seen in the hallway.
• Gu Heng refuses to treat the list as an established fact, warning that it may reveal only people who were visible rather than people truly involved.
• The chapter ends with Gu Heng asking Kushida to identify which source on her list was never directly given to her, placing pressure on her reliability and motives.

Character Developments

• Kushida: Continues acting as an intermediary, but becomes more cautious about how information is recorded and exchanged. She tries to preserve influence by offering both verified records and potentially useful contact information. Her desire for trust conflicts with her willingness to operate through incomplete or secondhand information.
• Gu Heng: Demonstrates a methodical, evidence-based approach. He separates facts from judgments, refuses to infer answers from timing alone, and insists that every claim retain its source and revision history.
• Yukimura: Functions as the safeguard of the process, maintaining the immutable Cold Backup and documenting every meaningful alteration.
• Horikita: Helps correct the spreading rumor about the Monkey Group, showing her willingness to retract inaccurate wording.
• Hirata: Supports the fact-based communication system and confirms that he forwarded the corrected information without turning it into an answer theory.

Significant Themes

• Facts versus interpretations: The chapter repeatedly distinguishes what is proven from what is merely suspected.
• Trust versus accountability: Gu Heng argues that recorded authority is more reliable than personal trust because records can be audited and restored.
• Information control and rumor management: Accurate phrasing prevents an uncertain event from becoming a widely accepted conclusion.
• Transparency and revision history: The Cold Backup ensures that changes cannot erase earlier versions, making manipulation visible.
• The limits of timing and coincidence: Similar formats or close timestamps do not establish a transmission chain or common source.
• Transactional cooperation: Kushida trades information for access to Class D’s public facts, but the exchange does not grant her unrestricted knowledge or influence.

Character Interactions

• Kushida and Gu Heng negotiate the conditions for sharing information, with Kushida testing the boundaries of his authority and trust.
• Gu Heng and Yukimura work together to create a controlled, auditable information system.
• Gu Heng corrects Kushida when she attempts to merge unconnected records.
• Horikita and Hirata help disseminate the corrected version of the Monkey Group report, limiting the spread of misinformation.
• The final exchange between Kushida and Gu Heng becomes more confrontational: she asks when he will trust her, while he challenges her to account for the origins of her contact list.

Chapter Summary: “Are You Worth Trusting?”

Key Plot Points and Events

• Kushida refuses to add Gu Heng’s limited public information to the shared sheet, criticizing it for providing timestamps but no useful answer direction. Gu Heng insists on separating verified facts from speculation.
• A Class B student asks whether Monkey Group has already solved the problem. Kushida carefully reveals only that a submission attempt occurred, earning Gu Heng one round of protection while also using her own access to the group’s information.
• Gu Heng and Kushida review three contact records involving students approaching members of Chicken and Snake Groups, as well as an unverified corridor encounter. Kushida repeatedly challenges the reliability of the records, while Gu Heng insists that every claim must retain its source and timestamp.
• Their discussion exposes a fundamental conflict: Kushida values practical conclusions and information flow, while Gu Heng prioritizes traceability, verification, and accountability.
• Kushida agrees to help with the list in exchange for access to Class D’s unorganized outer-layer reports. She then directly asks when Gu Heng will trust her.
• Gu Heng gives Kushida exclusive access to a confidential report, R-17, stating that a Chicken Group member directly reported a submission attempt. The information is deliberately restricted so that only Kushida can see the internal code.
• Kushida forwards the code privately. Shortly afterward, an anonymous group posts a distorted version claiming that R-17 confirms Chicken Group’s answer direction. Although Kushida did not explicitly state that the answer was reliable, she allowed the code to circulate without controlling how others interpreted it.
• Gu Heng treats the incident as a breach of the verification chain rather than proof that Kushida herself fabricated the claim. He seals the R-17 page, suspends all external dissemination, and prevents Kushida from editing or sending further information until the source is verified.
• Kushida leaves after acknowledging that she now possesses access to an important “door,” suggesting that the restriction has also demonstrated the level of authority Gu Heng is willing to grant her.
• The chapter ends with Kei Karuizawa seeing the same anonymous message, implying that the distorted information has reached her and may affect future events.

Character Developments

• Kushida: Demonstrates strong information-gathering and social skills, but also shows a willingness to manipulate or selectively transmit information. She wants recognition and trust from Class D while continuing to preserve her own leverage. Her forwarding of R-17 tests the limits of Gu Heng’s trust and reveals that she may value influence over strict accuracy.
• Gu Heng: Remains methodical, cautious, and committed to distinguishing verified evidence from interpretation. Rather than openly accusing Kushida, he tests her by giving her exclusive information and observing what happens. His sealing of R-17 establishes firm boundaries and shows that trust must be earned through responsible handling of information.
• Yukimura: Acts as the neutral record keeper. He maintains version histories, timestamps, and permission records, ensuring that changes and access restrictions cannot be denied. His role reinforces the chapter’s emphasis on accountability.
• Kei Karuizawa: Appears only at the end, but her discovery of the anonymous message indicates that the consequences of Kushida’s action are spreading beyond the immediate group.

Significant Themes

• Trust versus verification: The central question is whether trust can exist without evidence. Gu Heng treats reliable sources and recorded procedures as the foundation of trust, while Kushida sees trust as something that should be granted based on past cooperation.
• Information control and responsibility: The chapter shows that possessing information is different from controlling how it is interpreted. Kushida passes on only a code, but the resulting distortion demonstrates that indirect dissemination can still create responsibility.
• Transparency and accountability: Version histories, timestamps, access permissions, and sealed pages ensure that every change has a traceable origin. The system prevents people from rewriting events after the fact.
• Power through restricted access: Gu Heng’s confidential report functions both as a test and as a demonstration of power. Access itself becomes a form of trust, while sealing the page becomes a temporary suspension rather than outright punishment.
• Ambiguous cooperation: Kushida helps Class D, but she also collects its weaknesses and seeks leverage. The chapter presents cooperation as transactional and unstable rather than purely loyal.

Important Character Interactions

• Kushida and Gu Heng: Their exchanges are polite but confrontational. Kushida demands trust and greater access, while Gu Heng responds with questions about whether she has ever acted sincerely. Their conflict centers on whether usefulness can substitute for loyalty.
• Kushida and Yukimura: Kushida challenges Yukimura’s record-keeping, accusing him of tracking not only her edits but also the information she is denied. Yukimura calmly insists that the system records versions rather than judging her personally.
• Kushida and the Class B student: Kushida controls the conversation by revealing only public facts, protecting Class D while demonstrating her ability to manage outsiders’ expectations.
• Gu Heng and Yukimura: They work together as investigators and custodians of evidence. Yukimura records permissions and versions while Gu Heng makes decisions about access and sealing.
• Kushida and the anonymous group: Her indirect transmission of R-17 allows the group to transform a verified submission attempt into an apparently reliable answer direction, creating the chapter’s central breach of information integrity.
• Karuizawa and the leaked message: Though they do not interact directly, Kei’s discovery of the message signals that the information conflict will soon involve additional players.

Key Plot Points and Events

• Kei Karuizawa receives an anonymous message on her phone about R-17 and the Chicken Group's answer.
• She discreetly checks her phone and avoids being seen by others.
• Karuizawa delays responding to the message, choosing to keep it secret while maintaining her social presence.
• Gu Heng, an observer, notes Karuizawa's anomaly and records it without immediately sharing with Class D.
• Karuizawa receives a second notification but doesn't open it, further fueling Gu Heng's observations.
• Ayanokoji intervenes, stopping Gu Heng from further investigating or sharing Karuizawa's anomaly.

Character Developments

• Kei Karuizawa: She demonstrates secrecy and caution in handling the anonymous message, hinting at her involvement in the scheme or her awareness of its implications.
• Gu Heng: He shows diligence and perceptiveness in observing and recording Karuizawa's actions, but also discretion in not immediately sharing his findings.

Significant Themes

• Secrecy: Karuizawa's actions revolve around concealing her involvement with the message, reflecting the theme of secrecy and deception.
• Dependence: Gu Heng notes Karuizawa's dependence on an unknown target, suggesting a power dynamic or information exchange.
• Trust and Betrayal: The anonymous message and Karuizawa's actions hint at a breach of trust within the student body.

Character Interactions

• Karuizawa interacts with her classmates, maintaining her social facade while handling the message discreetly.
• Gu Heng observes Karuizawa without direct interaction, recording her actions and decisions.
• Ayanokoji intervenes, stopping Gu Heng's investigation, suggesting he has knowledge of or involvement in the situation.

Summary

Key Plot Points and Events

• Gu Heng confronts Ayanokoji after observing Karuizawa’s suspicious behavior and asks whether he understands what she is dealing with.
• Ayanokoji refuses to explain their connection, warning Gu Heng not to use Karuizawa as an entry point into Class D. Gu Heng interprets this as a warning rather than outright protection.
• Gu Heng reviews his evidence: Karuizawa’s priorities are marked as “Secrecy” and “Dependence,” but the information does not prove that Ayanokoji is the person she depends on or that she is acting for him.
• Rather than entering the observation into the Class D shared database, Gu Heng deletes Ayanokoji’s name from the record and keeps the information on a restricted personal page.
• He records only verifiable details about Karuizawa: she remains socially engaged, has looked toward the corridor twice, and has not opened a message. He deliberately avoids recording emotional interpretations.
• Returning to the group, Gu Heng explains his information-control policy to Yukimura: unconfirmed personal observations remain private, while only metadata—such as time, source status, and access history—is preserved in the Cold Backup.
• Horikita questions Gu Heng about what he removed. He admits it was an unconfirmed observation potentially related to Class D, accepting responsibility for delaying its disclosure.
• A Rabbit Group meeting is unexpectedly moved forward by ten minutes, beginning at 11:50. The second round will focus first on class affiliation, creating a new strategic concern.
• Gu Heng instructs Class D to issue no broad statement beyond the confirmed facts. He decides to observe who attempts to seize control of the Rabbit Group discussion rather than prematurely connecting unrelated suspicious events.

Character Developments

• Gu Heng becomes increasingly disciplined and cautious in handling intelligence. He distinguishes confirmed facts from interpretation, refuses to force unrelated events into a conspiracy, and accepts personal accountability for withholding uncertain information.
• Ayanokoji remains guarded and strategically opaque. He intervenes only long enough to warn Gu Heng away from Karuizawa, revealing that he knows more than he is willing to disclose.
• Karuizawa appears outwardly comfortable with her companions but displays subtle signs of distraction or vigilance, including delayed reactions, repeated glances toward the corridor, and keeping her phone hidden beneath her knee.
• Yukimura acts as a procedural partner, helping maintain records and accepting Gu Heng’s evidentiary standards without pressing into restricted information.
• Horikita challenges Gu Heng’s secrecy and demands accountability, but ultimately respects the separation between personal observation and shared Class D intelligence.
• Kushida remains an indirect point of comparison: her information was already part of an external dissemination chain, whereas Karuizawa’s situation has not yet produced sufficiently strong evidence.

Significant Themes

• Evidence versus interpretation: The chapter repeatedly emphasizes that observations must not be confused with conclusions.
• Information control and confidentiality: Access permissions, archival metadata, and source tracking become tools for managing risk.
• Strategic restraint: Gu Heng avoids acting on incomplete information, even when doing so might seem safer.
• Responsibility and accountability: Keeping information private does not eliminate responsibility; Gu Heng records the delay and accepts its consequences.
• Manipulation and hidden relationships: Ayanokoji and Karuizawa’s connection remains ambiguous, suggesting concealed dependence or coordination.
• Control of communication: The Rabbit Group’s meeting schedule and the question of who speaks first reflect the broader struggle over narrative and class affiliation.

Character Interactions

• Gu Heng and Ayanokoji: Their exchange is tense and indirect. Gu Heng seeks clarity, while Ayanokoji controls the conversation through warnings and omissions.
• Gu Heng and Karuizawa: They do not speak directly in this section, but Gu Heng closely observes her behavior and chooses not to exploit her as a source of information.
• Gu Heng and Yukimura: They establish rules for restricted records, metadata visibility, and verification standards.
• Gu Heng and Horikita: Horikita questions his decision to conceal information, while Gu Heng defends the distinction between an unconfirmed observation and a reportable Class D fact.
• Class D and Rabbit Group: The upcoming discussion shifts the strategic focus toward class affiliation and control of the floor, with Gu Heng preparing to observe leadership behavior rather than search for a single culprit.

Key Plot Points and Events

• The Rabbit Group's second discussion begins with Hashimoto switching the mode to public.
• Gu Heng suggests investigating Class C's involvement, which Ishizaki objects to, and Kanzaki proposes investigating Class B instead.
• Gu Heng records reactions and separates proposals from interpretations, deleting the Class C test item but preserving reactions.
• The answer window is about to open, and Gu Heng receives an anonymous private message claiming to know Rabbit Group's favored one.

Character Developments

• Gu Heng demonstrates his strategic thinking by separating proposals from reactions and using them to find verification paths.
• Ishizaki shows protectiveness towards Class C, while Kanzaki is more cautious about involving Class B.
• Sakura records speaking times, and Yukimura backs up the discussion records.

Significant Themes

• The search for the Privileged Person's identity and their affiliation.
• The use of strategic thinking and evidence collection in the discussion process.
• The importance of preserving reactions and interpretations for further verification.

Character Interactions

• Gu Heng interacts with Ishizaki and Kanzaki, provoking reactions from them that he records and analyzes.
• Sakura and Yukimura support Gu Heng by providing time records and backing up discussion records.
• The group dynamic involves cautious sharing of information and guarded reactions, with each member trying to deduce the Privileged Person's identity.

Key Plot Points and Events

• An anonymous private message claims to know the Rabbit Group's VIP.
• Gu Heng receives the message but chooses not to reply or open the conversation page.
• He saves the message as an original record and cross-checks it with other groups' reactions.
• The Rabbit Group's public discussion ends, and an answer window countdown begins.

Character Developments

• Gu Heng demonstrates caution and strategic thinking by not replying to the anonymous message and cross-checking information.
• Horikita shows initiative in cross-checking the Rabbit Group's discussion times.
• Hirata gathers information from other classes about their reactions to the Rabbit Group's second round.
• Karuizawa exhibits unusual behavior, asking about who spoke first in the Rabbit Group's second round.

Significant Themes

• The theme of verification and proof is emphasized, as Gu Heng waits for concrete evidence before drawing conclusions.
• The importance of independent judgment and not relying on others' claims is highlighted.
• The tension and uncertainty surrounding the VIP's identity and the Rabbit Group's actions are maintained.

Character Interactions

• Gu Heng interacts with Yukimura and Horikita, sharing information and working together to verify the anonymous message.
• Hirata provides updates on other classes' reactions to Gu Heng.
• Karuizawa's interaction with others is mentioned, showing her unusual behavior and questions about the Rabbit Group.

Key Plot Points and Events

• Karuizawa is unusually tense and evasive during lunch, asking about the Rabbit Group's second round and snapping at her friends.
• Gu Heng, observing from a distance, notes her behavior and asks Hirata to keep a record of her exact words.
• Karuizawa tries to stop the spread of information about the Rabbit Group's second round but is unsuccessful.
• Kushida publicly calls Karuizawa "Little Nobody," causing her to react strongly.

Character Developments

• Karuizawa: Shows signs of stress and evasiveness, reacting strongly to the nickname "Little Nobody," suggesting a past trauma or secret.
• Gu Heng: Demonstrates keen observation and strategic thinking, focusing on Karuizawa's behavior and interactions.

Significant Themes

• Secrecy and hidden pasts: Karuizawa's reaction to the nickname suggests she has a secret she's trying to hide.
• Information control: Karuizawa's attempts to stop the spread of information about the Rabbit Group's second round highlight the theme of controlling information flow.

Character Interactions

• Karuizawa and her friends: Karuizawa's tense interactions with her friends reveal her stress and evasiveness.
• Karuizawa and Kushida: Kushida's public use of the nickname "Little Nobody" causes Karuizawa to react strongly, hinting at a past conflict or secret between them.
• Gu Heng and Hirata: Gu Heng tasks Hirata with recording Karuizawa's exact words, showing his strategic approach to gathering information.

1. Key Plot Points and Events

• Kei Karuizawa is called "Little Invisible," her old nickname, by Kushida.
• Hayakawa Takuya asks Karuizawa about an anonymous private message sent to Gu Heng.
• Gu Heng limits external references to Class D's shared page to read-only.
• Ichinose Honami questions Gu Heng about his risk-averse approach.

2. Character Developments

• Karuizawa: She is visibly shaken by her old nickname and refuses to discuss it. She also refuses to share information about Gu Heng's message.
• Kushida: She persists in her questioning but respects Karuizawa's boundaries when she asks to stop. She doesn't pursue Karuizawa after she leaves.
• Gu Heng: He prioritizes protecting Class D's information and doesn't interfere with Karuizawa's choices. He acknowledges his risk-averse approach.
• Ichinose: She observes Gu Heng's actions and questions his focus on risks.

3. Significant Themes

• Information Control: Gu Heng emphasizes the importance of controlling information boundaries to protect Class D.
• Trust and Betrayal: Karuizawa's past nickname and Gu Heng's message raise questions about trust and potential betrayals within the class.
• Responsibility and Choice: Gu Heng acknowledges that he can't decide for Karuizawa and respects her choices.

4. Character Interactions

• Karuizawa and Kushida: Their interaction is tense, with Karuizawa refusing to discuss her past and Kushida persistently asking questions.
• Gu Heng and Karuizawa: Gu Heng doesn't interfere with Karuizawa's choices, respecting her decisions.
• Gu Heng and Ichinose: Ichinose questions Gu Heng's risk-averse approach, showing concern for his well-being.

Key Plot Points and Events

• Ichinose brings a redacted transaction list to Gu Heng, asking about risks first before showing it to Gu Heng.
• The list contains a redacted student's name, delivery time, and return status from Class B's exchange page.
• Ichinose wants to confirm if the problem lies in the copying or recounting of the transaction.

Character Developments

• Ichinose: She's protective of her classmates' privacy and willing to keep promises. She's cautious about revealing sensitive information.
• Gu Heng: He's risk-averse and meticulous. He believes in verifying facts before making judgments. He's willing to exchange information but keeps Class D's core judgments private.

Significant Themes

• Trust and privacy: Ichinose values her classmates' trust and is cautious about revealing their information. Gu Heng, while willing to exchange information, keeps Class D's core judgments private.
• Risk and verification: Gu Heng emphasizes the importance of verifying facts and considering risks before making decisions. Ichinose, while protective of her classmates, also understands the need for verification.

Character Interactions

• Ichinose and Gu Heng: They engage in a cautious exchange of information, with Ichinose seeking Gu Heng's help to understand the risks involved in the transaction list. Gu Heng, in turn, wants to verify the facts before making any judgments.
• Gu Heng and Yukimura: They discuss the exchange with Ichinose. Gu Heng shares publicly available time fields with Yukimura but keeps the core answer private.
• Morishita Ai and Yukimura: Morishita approaches Yukimura, offering points for a wrong direction that Class D withdrew but didn't submit. Yukimura declines, suggesting she ask Rabbit Group instead.

Key Plot Points and Events

• Morishita Ai from Class B tries to sell an unverified lead to Class D for 80 points.
• Gu Heng from Class D refuses to buy it, aiming to expose the source of the lead.
• A mysterious message appears on Morishita's terminal, warning her not to hand Class C's lead to Class D.
• Kanzaki Ryuji from Class B intervenes, wanting to take the offer back to avoid Ichinose's knowledge.
• Shibata Hayate from Class B arrives, confirming he sent the lead but denies selling answers.
• Gu Heng records the source as 'Shibata's own statement; unverified' without naming him.
• Shibata opens the Rabbit Group's answer-submission page, selecting 'Class C' without confirming.

Character Developments

• Morishita Ai: Shows cunning and strategic thinking, aiming to expose Class B's cracks.
• Gu Heng: Demonstrates integrity and a commitment to truth, refusing to buy unverified leads and recording sources.
• Shibata Hayate: Reveals a willingness to manipulate information and exploit others' choices for personal gain.
• Kanzaki Ryuji: Shows concern for Class B's image and Ichinose's feelings, trying to protect them from potential scandal.

Significant Themes

• Truth vs. Manipulation: Characters grapple with the consequences of sharing or hiding information.
• Responsibility and Consequences: Characters weigh the responsibility of their choices and the potential outcomes.
• Trust and Betrayal: The dynamics between characters shift as trust is tested and betrayals are suspected.

Character Interactions

• Morishita Ai and Gu Heng: They engage in a tense negotiation, with Morishita trying to sell the lead and Gu Heng refusing, aiming to expose the source.
• Kanzaki Ryuji and Shibata Hayate: Kanzaki confronts Shibata about his actions, while Shibata defends his choices.
• Gu Heng and Shibata Hayate: Gu Heng tries to record Shibata as the source, while Shibata remains evasive and manipulative.

Key Plot Points and Events

• Shibata is about to submit a wrong answer to sabotage Class B.
• Gu Heng intervenes and negotiates with Shibata to reveal the timing of the concentrated feed of wrong answers.
• Shibata agrees to provide the timing in exchange for Gu Heng not disclosing his name to Class D.
• A fake delivery record is posted on the public exchange page, implicating Gu Heng.

Character Developments

• Shibata: Reveals his willingness to protect his choices and dignity, despite his initial intention to betray Class B.
• Gu Heng: Demonstrates his strategic thinking and negotiation skills, prioritizing the truth over immediate gains.
• Morishita Ai: Shows her independent thinking and caution, deciding not to buy Shibata's offer until she's sure of the consequences.

Significant Themes

• The price of truth and dignity: Characters are willing to make deals and sacrifices to protect their integrity and the truth.
• Manipulation and misinformation: The concentrated feed of wrong answers highlights the power of misinformation and the importance of verifying sources.

Character Interactions

• Gu Heng and Shibata: Engage in a tense negotiation, with Gu Heng extracting valuable information while respecting Shibata's dignity.
• Kanzaki and Shibata: Kanzaki forces Shibata to return to Class B to explain his actions to Ichinose.
• Morishita Ai and Gu Heng: Morishita Ai decides not to buy Shibata's offer, trusting Gu Heng to reveal the truth.

Key Plot Points and Events

• Gu Heng freezes the fake Rabbit Group record instead of deleting it.
• Ayanokoji appears and criticizes Gu Heng's handling of the situation.
• An anonymous message claims Kei Karuizawa knows who was first to name their class in the second round.
• Ayanokoji warns Gu Heng not to approach Karuizawa, stating that moving her now would change everyone's positions.

Character Developments

• Gu Heng demonstrates his commitment to finding the truth and holding people accountable for their actions.
• Ayanokoji shows a more nuanced understanding of the situation, trying to protect the fluidity of choices and outcomes.
• Karuizawa's name is further implicated in the Rabbit Group incident, putting her under scrutiny.

Significant Themes

• Truth and Accountability: Gu Heng's pursuit of the truth and his desire to hold people accountable for their actions drive the plot.
• Choice and Consequence: The characters grapple with the choices they make and the consequences that follow.
• Manipulation and Influence: Characters try to influence the situation and each other, often with hidden agendas.

Character Interactions

• Gu Heng and Ayanokoji have a tense exchange, with Ayanokoji criticizing Gu Heng's approach and Gu Heng standing his ground.
• Gu Heng's interaction with Karuizawa is limited to a glance, but Ayanokoji's warning adds tension to their potential future interactions.

Key Plot Points and Events

• Gu Heng receives an anonymous message containing a passage that later appears on Kushida's terminal.
• Gu Heng creates three layers to manage the information: anonymous channel, cross-group citation, and Class D shared page.
• Karuizawa sees the citation alert but doesn't engage with it directly, instead setting a boundary by stating she won't discuss unverified sources.
• Kushida shows Gu Heng a preview of the same message on her terminal, claiming she doesn't know its source.
• Hayakawa is seen watching Karuizawa from a distance.

Character Developments

• Gu Heng: Demonstrates his methodical approach to handling information and potential threats, focusing on tracing sources and movements rather than jumping to conclusions.
• Karuizawa: Shows resilience and self-control by not engaging with the anonymous message directly and setting a clear boundary for herself.
• Kushida: Struggles with her desire for revenge and maintaining her dignity, ultimately choosing to set a boundary for her actions like Karuizawa.
• Hayakawa: Shows interest in Karuizawa's situation but keeps his distance, suggesting he might be involved in the anonymous messages or is curious about them.

Significant Themes

• Information control and manipulation: Characters struggle with how to handle unverified information, deciding whether to share it, ignore it, or use it to their advantage.
• Boundaries and self-control: Characters set boundaries for themselves and others, trying to maintain control over their actions and reactions in the face of potentially damaging information.
• Trust and suspicion: Characters grapple with trust issues, suspecting others of being involved in the anonymous messages or having ulterior motives.

Character Interactions

• Gu Heng and Karuizawa: Gu Heng investigates around Karuizawa without directly approaching her, while she sets boundaries to protect herself.
• Gu Heng and Kushida: They discuss the anonymous message, with Gu Heng trying to limit its circulation while Kushida struggles with her desire for revenge.
• Hayakawa and Karuizawa: Hayakawa watches Karuizawa from a distance, suggesting potential interaction or interest in her situation.

Key Plot Points

• An anonymous message hints at Karuizawa's past nickname, which could prove her as the favored party.
• Gu Heng implements restrictions on forwarding personal weaknesses and using private nicknames in class judgments.
• Karuizawa responds to the hint, stating that unconfirmed private nicknames cannot be the basis for conclusions.
• Kushida demands a source for the nickname, pushing the original questioner to reveal themselves.
• Ayanokoji and Gu Heng discuss the situation, with Ayanokoji warning Gu Heng not to choose the entrance for someone else.

Character Developments

• Karuizawa shows assertiveness by setting boundaries and not giving in to rumors.
• Kushida actively participates in demanding sources for rumors, showing her willingness to protect Karuizawa.
• Gu Heng demonstrates his commitment to fair play by implementing restrictions and not acting rashly.
• Ayanokoji shows his strategic thinking by warning Gu Heng not to act prematurely.

Significant Themes

• The power of rumors and their potential harm.
• The importance of evidence and sources in making accusations.
• The struggle between protecting oneself and protecting others.

Character Interactions

• Gu Heng and Ayanokoji discuss the situation, with Ayanokoji providing a warning.
• Karuizawa and Kushida interact indirectly through their responses to the anonymous message.
• Gu Heng and Kushida discuss their stances on the situation, with Kushida showing her willingness to protect Karuizawa.

Key Plot Points and Events

• Gu Heng receives an anonymous message on his personal page, stating that the privileged person is not where he thinks.
• The answer window opens, with 23 minutes remaining.
• Gu Heng investigates the message's landing and finds it doesn't reveal the privileged person's identity, only their location.
• Gu Heng finds Hayakawa, who admits to viewing the submission page but not confirming an answer. He received a reminder to do so.
• Gu Heng encounters Ayanokoji at the stairwell, who admits to waiting for Gu Heng to separate the route from the answer.
• Gu Heng records Hayakawa's and Ayanokoji's actions but doesn't write them into Class D's shared page to avoid speculation.

Character Developments

• Gu Heng demonstrates his meticulous investigation skills and commitment to fairness.
• Hayakawa shows willingness to cooperate but is evasive about the reminder's content.
• Ayanokoji exhibits knowledge of the situation and protects a subject, hinting at an "Old Covenant" and "Protected Subject 94."

Significant Themes

• Secrecy and Deception: Characters withhold information, use coded language, and avoid direct answers.
• Trust and Suspicion: Characters question each other's motives and intentions, leading to a lack of open communication.
• Power Dynamics: The privileged person's identity holds power, and characters navigate their interactions based on this.

Character Interactions

• Gu Heng interacts with Hayakawa and Ayanokoji, trying to gather information without writing it into the shared page to avoid speculation.
• Hayakawa and Ayanokoji exchange words, with Ayanokoji hinting at his knowledge of the situation but not revealing specifics.
• Karuizawa's boundary declaration is mentioned but not directly addressed by Gu Heng.