Chapter Summaries

Key plot points and events

• Class C’s Tsubaki Sakurako gathers the first-year class leaders to coordinate against Hosen Kazuomi, who is pursuing the reward of twenty million Private Points for getting Ayanokoji Kiyotaka expelled.
• Tsubaki confronts Yagami Takuya, revealing that she suspects he also wants Ayanokoji expelled and has a hidden conflict with Student Council President Shiraishi Makoto. Yagami denies both, but his unease gives him away.
• Tsubaki reports that Nanase Tsubasa is near Ayanokoji, suggesting Hosen’s next move is underway. The leaders must decide how to act before Hosen succeeds.
• On day seven of the island survival exam, storm clouds gather and the school warns that severe weather may suspend movement orders and Challenges. Shiraishi’s group sets out while conditions are still dry.
• Ayanokoji and Nanase climb a mountain and stage a fight, apparently to make their encounter look convincing to anyone following them.
• Amasawa Ichika catches Shinohara Satsuki spying on the pair. She intimidates and strikes Shinohara, then forces her to flee before she can interfere.

Character developments and interactions

• Tsubaki emerges as a perceptive, capable strategist whose abilities exceed her modest public reputation. She reads Yagami’s motives and presses him about his past conflict with Shiraishi.
• Yagami tries to conceal his ambitions and connections, but Tsubaki’s observations visibly unsettle him.
• Ayanokoji and Nanase cooperate in staging a fight, though Nanase also expresses interest in testing Ayanokoji’s strength.
• Amasawa acts decisively to protect the staged encounter, using Shinohara’s apparent vulnerability or secret as leverage.
• Shinohara is revealed to be acting under pressure from Yagami, who has apparently tasked her with recording Ayanokoji and Nanase. Amasawa’s knowledge of compromising information leaves Shinohara frightened and powerless.

Significant themes

• Hidden motives and surveillance: Several characters are watching, manipulating, or concealing their intentions.
• Strategic alliances and competition: The class leaders face a common threat in Hosen, even as their own agendas complicate cooperation.
• Power through information: Tsubaki’s insight and Amasawa’s leverage over Shinohara show how knowledge can be as effective as physical strength.
• Public image versus reality: Tsubaki’s understated reputation contrasts with her strategic skill, while Yagami’s harmless appearance masks his hostility.

Key plot points and events

• Nanase Tsubasa and Ayanokoji Kiyotaka finish their staged confrontation. Nanase accepts that she cannot defeat him and, after Ayanokoji reveals Tsukishiro Tokinari’s lie, abandons the plan to get him expelled. They agree to continue the performance with an argument before heading to meet Shiraishi Makoto’s group.
• Amasawa Ichika, arriving after dealing with Shinohara Satsuki, watches them and suspects something about their interaction is not what it seems.
• Shiraishi Makoto’s group reaches higher ground and pitches tents before a storm hits. The rain lasts through the seventh day, suspending the exam and forcing students to shelter and eat food that needs no cooking.
• The rain stops on the morning of day eight, but muddy terrain makes travel difficult. With students increasingly tired and spread out, Challenges attract fewer participants and take longer to fill.
• The standings show Shiraishi’s second-year group in first place, while third-years occupy half the top ten. Four of the groups facing expulsion are first-years, putting pressure on their class leaders to act together against Ayanokoji.

Character developments and interactions

• Nanase recognizes Ayanokoji’s superior strength and drops her expulsion plan after learning the truth about Tsukishiro’s scheme. Shiraishi had relied on her as an inside contact, but his newer connections to Tsubaki Sakurako and Utsunomiya Riku reduce that dependence.
• Ayanokoji remains composed during the sparring match and treats the confrontation as a performance to carry through, even after its fight scene is over.
• Amasawa becomes suspicious of the unusual rapport between Ayanokoji and Nanase.
• Shiraishi’s group, including Kanzaki Ryuji, uses the forced rest to recover, then returns to the exam after the storm.

Significant themes

• Strength and justice: Nanase’s belief in fairness does not prevent her from fighting at full strength once she accepts the difference in ability between herself and Ayanokoji.
• Endurance and strategy: The weather and physical fatigue reshape the exam; success depends not just on winning Challenges but on managing rest, movement, and risk.
• Unequal competition and collective action: The first-years’ early advantage fades as their numbers and experience become disadvantages. Their endangered classmates provide a reason for the year group to unite against Ayanokoji.

Key plot points and events

• On day nine of the Uninhabited Island Exam, Nanase returns to Hosen’s campsite after failing to attack Ayanokouji. Hosen mocks her for not using what he calls her “advantage as a woman,” but Nanase takes his crude remark literally and responds earnestly.
• Hosen dismisses Nanase’s offer to help and tells her to follow the school’s movement orders. A Class 1-C student then delivers him a walkie-talkie from Utsunomiya.
• Utsunomiya says he is organizing an operation to rescue first-year groups at risk of expulsion. Hosen initially shows little interest in helping his classmates.
• Hosen uses his tablet to identify that Tsubaki Sakurako, not Utsunomiya, is directing the plan. Tsubaki explains that saving the endangered students also serves their goal of getting Ayanokouji expelled.
• Tsubaki proposes surrounding Ayanokouji with a coordinated group of first-years, offering each participant a share of a twenty-million-point bounty—about 500,000 points per person. She is willing to accept expulsion herself if the school punishes the operation.

Character developments

• Nanase remains sincere and straightforward, even when faced with Hosen’s insults. She recognizes that Tsubaki’s appeal likely has a strategic purpose.
• Hosen is openly contemptuous of his classmates and initially refuses to help, but becomes interested when the plan is linked to attacking Ayanokouji. He is confident and deceptive, casually lying about how he found Tsubaki.
• Tsubaki emerges as a determined strategist who is prepared to risk her place at school to carry out her plan.
• Utsunomiya acts as the messenger and organizer, despite his continued dislike of Hosen.

Significant themes

• Self-interest and cooperation: Tsubaki uses a shared reward and a common target to unite students who otherwise have little reason to work together.
• Risk and sacrifice: Tsubaki is willing to bear the consequences of a large-scale scheme herself.
• Power and manipulation: The characters use information, incentives, and deception to pursue their goals.
• Gender and misunderstanding: Hosen’s crude assumptions contrast with Nanase’s literal, unflustered response.

Character interactions

• Nanase and Hosen’s exchange highlights their contrasting temperaments: her earnestness meets his aggression and vulgarity.
• Hosen and Utsunomiya communicate through the walkie-talkie, with Utsunomiya bluntly introducing the rescue operation despite their hostility.
• Hosen uncovers Tsubaki’s role, prompting her to explain the plan directly. Their conversation reveals that their interests overlap, even though Hosen’s main concern remains taking down Ayanokouji.

Key plot points and events

• Tsubaki Sakurako’s group plans to stop Ayanokoji’s group from completing movement orders. If they miss all fifteen remaining orders, they could lose 91 points and finish last. The attack on Ayanokoji is mainly a way to draw out the elusive Yagami Takuya.
• Utsunomiya Riku worries that the plan could lead to expulsion. Tsubaki says she is not seeking expulsion, but does not care much whether she remains at the school.
• On the ninth evening, Shiraishi Makoto’s group camps near a lone tent. A warning alarm sounds from inside, but the occupant does not answer.
• Shiraishi and Ichinose Honami investigate and find Ibuki Mio, a solo examinee, visibly exhausted and dehydrated. Horikita Suzune restrains her while Ichinose checks her supplies: Ibuki has only a little homemade jerky and no water.
• Ibuki admits she has gone nearly two days without drinking, relying on rainwater the day before. Her condition explains why her watch’s health alarm sounded.

Character developments

• Tsubaki shows indifference to the school’s prestige and even to the possibility of expulsion, contrasting with heirs such as Utsunomiya, who are invested in what the school can offer their families.
• Utsunomiya reveals concern for Tsubaki and for the group, urging her not to risk expulsion lightly.
• Ibuki is shown as proud and solitary, yet determined to graduate in Class A. Her poor condition exposes the physical cost of taking the exam alone and her reluctance to accept help.
• Shiraishi, Ichinose, and Horikita act quickly and cooperatively to investigate and assess Ibuki’s safety.

Significant themes

• Ambition versus indifference: Some students pursue the school’s status and its connections; Tsubaki appears largely unmoved by them.
• Isolation and its costs: Ibuki’s independence leaves her vulnerable, while her pride makes assistance difficult to accept.
• Competition and risk: The groups’ strategies can jeopardize both exam results and students’ safety.
• Cooperation across rivalries: Despite past tensions, the students respond to Ibuki’s emergency rather than treating her as a competitor.

Character interactions

• Utsunomiya challenges Tsubaki about the danger of her plan; she answers candidly but does not reassure him.
• Ichinose and Shiraishi approach Ibuki after her alarm sounds. When she resists, Horikita holds her while Ichinose checks the tent.
• Horikita’s prior fight with Ibuki gives her a clear sense of Ibuki’s usual strength, making her unusually weak resistance all the more alarming.

Key plot points and events

• Ichinose returns to Ibuki with safe drinking water made using her group’s purifier and boiled river water. Ibuki, badly dehydrated, accepts it despite her initial reluctance.
• Shiraishi assesses Ibuki’s supplies and score: she has enough smoked jerky for about two days and 62 points, placing 107th. Although she is above the bottom ten, her solo position is risky.
• Shiraishi advises Ibuki to rest the next day so she can recover and compete more effectively. Ibuki agrees to move once in the morning and return by noon; Ichinose’s group offers to provide more water.
• Horikita reflects that she once wanted to compete alone too, and recognizes similarities between herself and Ibuki.
• On the tenth day, Sakayanagi alerts Shiraishi that twelve first-year groups are moving to surround Ayanokoji’s team while they are stopped for lunch. Shiraishi agrees that Sakayanagi can use his name to mobilize Class A students. They discuss bringing Ryuen into the response, reasoning that he may welcome a chance to confront Hosen.

Character developments and interactions

• Ibuki accepts help from Ichinose and Horikita, though she remains defensive and reluctant to sacrifice points by resting. Her physical condition exposes the limits of trying to compete alone.
• Ichinose shows practical compassion, supplying water and offering continued support.
• Shiraishi takes a strategic, measured approach, prioritizing Ibuki’s recovery and coordinating a response to the first-years’ move.
• Horikita gains empathy for Ibuki by recalling her own past difficulties and recognizing their shared independence.
• Sakayanagi acts decisively upon learning of the encirclement, seeking Shiraishi’s help to mobilize Class A.
• Shiraishi and Sakayanagi cooperate, while considering Ryuen’s willingness to join the effort against Hosen.

Significant themes

• Interdependence versus isolation: Ibuki’s condition illustrates how competing alone can become a self-reinforcing disadvantage; accepting help may be necessary to keep going.
• Resource management and endurance: Water, rest, points, and physical stamina all affect a student’s ability to compete.
• Empathy through experience: Horikita’s past hardship helps her understand Ibuki’s predicament.
• Strategic cooperation: The approaching threat to Ayanokoji’s group prompts alliances across classes, even when cooperation is motivated by shared interests.

Key plot points and events

• Yagami meets Tsubaki and Utsunomiya to improve their plan to corner Ayanokoji. He provides a tablet from someone with Ayanokoji’s Route Schedule so the first years can predict the group’s next destination and intercept them more efficiently.
• Tsubaki reveals she already has another tablet with the same schedule. Yagami offers to step aside, saying he will let her lead; Tsubaki openly says she would rather not have him around because she does not trust him.
• At 1 p.m., the first years launch their operation. Six teams move to surround Ayanokoji’s group, while others form a second ring near its destination. The group evades the first wave by detouring.
• A random movement instruction sends Ayanokoji’s group to the distant 8I Area. Yagami sees this as an advantage, but the first years soon learn that second-year groups are intercepting their teams.
• Tsubaki’s GPS search shows that the first-year teams surrounding Ayanokoji have stopped, each at the location of a second-year group. The second years have broken the encirclement and mounted a coordinated counterattack, costing first-year groups points as well as disrupting their plan.
• Tsubaki concludes that the second years knew when the first years would act and must have a commander. She suspects Sakayanagi, reasoning that she has time to plan from the Starting Port. She also mentions a rumor that President Shiraishi carried Sakayanagi back to the Port District.

Character developments and interactions

• Yagami presents himself as a helpful ally, but his interactions with Tsubaki remain tense. He relinquishes his proposed share of the reward and accepts a supporting role, while Tsubaki makes clear she distrusts him.
• Tsubaki emerges as a cautious, independent strategist: she recognizes how Yagami obtained the route information, had prepared her own tablet, and quickly identifies the second years’ intervention as coordinated.
• Utsunomiya questions Yagami’s plan and helps verify the unfolding events, though the narration hints that his apparent surprise at the second years’ attack may not be genuine.
• Ayanokoji’s group avoids the first-year teams through a detour, then escapes the encirclement with help from the second years.
• The second years act collectively across classes, shifting the conflict from a first-year pursuit of Ayanokoji to a broader contest between year groups.

Significant themes

• Strategy and counterstrategy: Route tracking, coordinated positioning, and predicting opponents’ moves drive the action.
• Unstable alliances and mistrust: The first years cooperate against Ayanokoji, but rivalries and suspicion persist among them.
• Collective action and diversion: The second years protect Ayanokoji while making the first years pay a comparable cost, turning their own tactic against them.
• Leadership and hidden influence: The first years’ surprise suggests that an unseen strategist—possibly Sakayanagi—is directing events.

Plot points and events

• Tsubaki Sakurako learns that her plan to steer Ayanokoji’s group has been anticipated. She suspects Shiraishi Makoto’s sharp judgment—and preparations for the women in Ayanokoji’s group—helped expose the scheme.
• Rather than abandon the operation, Tsubaki activates a backup plan: use the obstacles facing Ayanokoji to direct him toward Hosen Kazuomi, whom she calls their year’s “killer.”
• Hosen intercepts Ayanokoji’s group in the forest, intending to defeat Ayanokoji and pressure the girls into withdrawing. He admits he leaked information to Nanase so he could later challenge Ayanokoji openly.
• Ryuen Kakeru arrives after secretly breaking his watch to hide his GPS location. Ayanokoji recognizes the opening, and Ryuen tells him to leave with the group.
• Ryuen stays behind to face Hosen. He accepted Shiraishi’s offer for the chance to ambush Hosen and for information about the earlier attacks on Komiya Yogo and Kinoshita Minori.

Character developments

• Tsubaki shows flexibility: she had anticipated that her plan might fail and prepared an alternative.
• Hosen is confident and eager to fight Ayanokoji, but his pursuit is interrupted by Ryuen.
• Ryuen takes a direct role in the exam, driven both by his class’s need for points and his desire to uncover who attacked his classmates.
• Ayanokoji remains composed under threat and quickly takes advantage of Ryuen’s intervention.

Significant themes

• Strategy and counterstrategy: Tsubaki’s backup plan, Hosen’s deliberate leak, and Ryuen’s concealed location illustrate how plans are continually anticipated and disrupted.
• Trust, leverage, and incentives: Characters cooperate for specific rewards, while Shiraishi’s resources and information shape their choices.
• Protection and responsibility: Ryuen’s intervention allows Ayanokoji’s group to escape and connects the current conflict to the unresolved attacks on his classmates.

Character interactions

• Tsubaki discusses the failed plan and backup with Yagami and Utsunomiya, then directs Hosen by radio.
• Hosen confronts Ayanokoji and threatens the girls, but Ayanokoji shields Sato and stays calm.
• Ryuen and Ayanokoji exchange a brief, understanding glance before Ayanokoji leaves.
• Ryuen and Hosen face off, ending the chapter poised for a fight.

Key events

• Hosen Kazuomi overwhelms Ryuen Kakeru in a one-on-one fight, knocking him down and triggering Ryuen’s watch alarm.
• Ryuen refuses to give up. He distracts Hosen with a handful of dirt, giving Ishizaki Daichi and Yamada Albert time to rush in and restrain him.
• With Hosen pinned, Ryuen repeatedly punches him until he loses consciousness. Ryuen is badly hurt too, and his watch keeps sounding the warning alarm.
• Ryuen tells Ishizaki and Albert to leave, then chooses to withdraw alongside Hosen. He says he has accomplished what he came to do and believes both withdrawals will make the incident easier to present as an accident.
• Meanwhile, Tsubaki Sakurako learns that Hosen and Ryuen have both been injured and removed from the exam. She is surprised that someone managed to defeat Hosen.
• Tsubaki checks Utsunomiya Riku’s position and contacts him. He has stopped Hamaguchi Tetsuya, a second-year from Class 2-A, who says Shiraishi sent him with a message for Tsubaki and asks to use Utsunomiya’s walkie-talkie.

Character developments and interactions

• Ryuen demonstrates that he relies on deception, endurance, and planning rather than physical strength alone. Though outmatched, he turns the fight around by arranging backup and exploiting Hosen’s confidence.
• Hosen remains physically dominant and defiant, but his strength cannot overcome the combined restraint of Albert and Ishizaki or Ryuen’s persistence.
• Albert and Ishizaki support Ryuen by holding Hosen down, making his counterattack possible. Albert’s strength proves especially important.
• Tsubaki responds quickly to the failed interception and monitors her operation, but the unexpected defeat of Hosen unsettles her plans.
• Utsunomiya acts as a checkpoint guard, while Hamaguchi’s friendly approach introduces a possible new development involving Shiraishi.

Significant themes

• Strategy over strength: Ryuen wins not by matching Hosen physically, but through teamwork, timing, and dirty tactics.
• Endurance and control: Ryuen’s willingness to keep going, and his decision to withdraw once his objective is achieved, show calculated persistence rather than simple aggression.
• The consequences of violence: Both fighters are injured and removed from the exam, while the school’s monitoring system and rules shape how the confrontation is handled.

Key plot points and events

• Utsunomiya Riku relays Shiraishi Makoto’s warning to Tsubaki Sakurako: stop the first-years’ attack, or the already struggling first-years will suffer most. Tsubaki agrees, ending the confrontation.
• Shiraishi’s cooperation with Tsubaki has removed most uninvolved first-years from the conflict. With the attack plan over, the exam returns to normal competition.
• On day thirteen, Shiraishi reviews the rankings. His group’s 37-point lead may not be enough: the final day will award double points, making both the top-three race and the lower rankings volatile.
• Nanase Tsubasa brings Shiraishi a coded note: “Day 14, noon, I2, expulsion, K.” They infer that Ayanokoji Kiyotaka is to be expelled at noon in the I2 area. Shiraishi suspects Yagami Takuya planted it to draw him into a simultaneous showdown while Tsukishiro targets Ayanokoji.
• Nanase offers to accompany Shiraishi, and he accepts. He tells his group to focus on challenges rather than arrival-order bonuses while he is away.
• On day fourteen, Shiraishi and Nanase head toward the 2I Area. GPS checks show that Ayanokoji’s entire six-person group is going there too.

Character developments and interactions

• Tsubaki chooses to stop rather than risk making the lowest-ranked first-years suffer and turn against her.
• Utsunomiya delivers Shiraishi’s message and leaves, though the chapter hints at a private reaction through his faint smile.
• Shiraishi remains focused on strategy, weighing both the exam standings and the impending threat. He accepts Nanase’s help despite recognizing that she is less capable in a fight.
• Nanase is untroubled that her role as a mole has been exposed and openly commits to helping Shiraishi.
• Hirata understands why Shiraishi must leave but prioritizes protecting their group’s lead, since the final-day scoring conditions make every point crucial.

Significant themes

• Strategy and consequences: Shiraishi’s intervention ends the attack while limiting harm to vulnerable students.
• Competition under uncertainty: Double scoring and crowded routes mean rankings can change dramatically, regardless of earlier leads.
• Loyalty and calculated risk: Nanase joins Shiraishi, while Hirata stays behind to serve the group’s broader interests.
• Escalating conflict: The exam’s ordinary competition is about to give way to a coordinated confrontation involving Shiraishi, Ayanokoji, Yagami, and Tsukishiro.

Key plot points and events

• Nanase Tsubasa and Shiraishi Makoto suspect Tsukishiro’s plan is to force Ayanokouji’s allies out of the exam after defeating him.
• At the boundary of areas 2I and 3I, Makoto and Nanase meet Kushida Kikyo’s group. Amasawa Ichika blocks their route: Makoto may pass, but everyone else must stay behind or withdraw. She admits she is prepared to use force.
• Makoto notices Amasawa is injured. Before he can decide how to handle her, Ibuki Mio arrives to help, partly in gratitude for the water his group gave her and partly because she learned about the threat to Ayanokouji.
• Makoto leaves Nanase and Ibuki to hold Amasawa off and proceeds into area 2I, where Ayanokouji has already confronted Acting Chairman Tsukishiro, teacher Sima Kedian, and first-year leader Yagami Takuya.
• Tsukishiro and Sima urge Makoto to withdraw, claiming it would spare his groupmates. Makoto challenges their claim by suggesting Amasawa has betrayed the White Room. Yagami is visibly startled by the accusation.

Character developments and interactions

• Makoto stays composed and perceptive, identifying Amasawa’s injury and questioning whether she is still following the White Room’s orders. He prioritizes reaching Ayanokouji while trusting Nanase and Ibuki to protect the others.
• Amasawa openly acknowledges her assignment to make the group withdraw and hints she will use violence. Her injury, however, raises doubts about her loyalty and suggests she may have been punished for defying orders.
• Nanase volunteers to face Amasawa and promises to protect the upperclasswomen.
• Ibuki chooses to help despite her history with Ayanokouji, motivated by gratitude and concern. She is ready for a fight.
• Yagami loses his composure when Makoto calls Amasawa a traitor, suggesting the allegation threatens his understanding of the situation.
• Kushida and Makoto share an affectionate reunion after spending much of the exam apart.

Significant themes

• Loyalty and betrayal: Amasawa’s injury and Makoto’s accusation cast doubt on where her allegiance truly lies.
• Coercion and responsibility: Tsukishiro and Sima use threats against students’ teammates to pressure them into withdrawing.
• Trust and cooperation: Makoto relies on Nanase and Ibuki, while Ibuki’s help shows that past conflict can give way to mutual support.
• Power and control: The confrontation pits student agency against the adults’ willingness to manipulate the exam through force.

Plot and events

• Tsukishiro says Amasawa Ichika never truly intended to get Ayanokoji expelled, but claims the school can force her out for falsifying her enrollment records. He again demands that Shiraishi and Ayanokoji choose whether to cooperate.
• Shiraishi refuses. Ayanokoji says he has no interest in the class competition and doesn’t consider school a waste: unlike the White Room, it lets him pursue personal interests and meet talented people.
• With negotiations over, Tsukishiro orders Yagami to attack Shiraishi while he and Sima confront Ayanokoji.
• Shiraishi focuses on dodging and retreating rather than striking. Yagami grows suspicious and discovers that Utsunomiya is waiting in the forest; his broken watch concealed his GPS signal.
• Utsunomiya joins Shiraishi to confront Yagami, accusing him of engineering Hatano’s expulsion. Yagami admits it, and Utsunomiya charges him.
• Kiryūin arrives to help Ayanokoji, revealing herself as Shiraishi’s other reinforcement. She warns that she cannot defeat Sima but agrees to hold him off briefly, while Ayanokoji faces Tsukishiro.

Character developments and interactions

• Ayanokoji openly values aspects of ordinary school life and rejects Tsukishiro’s claim that he is wasting his potential.
• Shiraishi demonstrates that his apparent retreat was part of a plan, having secretly arranged backup. He and Ayanokoji exchange dry banter, including jokes about Shiraishi’s taste for hot-blooded manga.
• Utsunomiya takes a personal stand against Yagami over Hatano’s expulsion, shifting from hidden support to direct confrontation.
• Kiryūin risks disciplinary consequences to protect her juniors. Though candid about her limits, she eagerly accepts the challenge.
• Yagami is unsettled by Amasawa’s defection and frustrated by Shiraishi’s evasive defense, but remains confident enough to admit his role in Hatano’s expulsion.

Significant themes

• Contact with the outside world can make White Room students question their conditioning and consider defection.
• The value of education and life cannot be reduced to competition or exceptional ability; Ayanokoji finds meaning in choice, interests, and relationships.
• Loyalty and solidarity emerge as characters protect one another, even at personal risk.
• Deception and preparation shape the confrontation: hidden allies and a concealed GPS signal undermine Tsukishiro’s apparent advantage.

Key events

• The group splits into two fights: Ayanokoji Kiyotaka faces Tsukishiro Tokinari and Sima Kedian, while Shiraishi Makoto and Utsunomiya Riku take on Yagami Takuya.
• Shiraishi’s defensive skill and well-timed attacks support Utsunomiya’s more aggressive approach. Together they exploit Yagami’s disadvantage in a two-on-one fight. Utsunomiya trades punches with him, and Shiraishi’s flying kick knocks him down; the pair restrain him.
• Ayanokoji badly injures Tsukishiro, while Sima holds Kiryūin Fūka. The confrontation ends when a rescue boat arrives—called after Shiraishi reported that students from three classes had collapsed, prompting a routine response without directly implicating Tsukishiro and his allies.
• Tsukishiro accepts that his plan has failed. As the others prepare to leave, he reveals that Shiraishi was supposedly a Fourth-Generation White Room student—and Yagami’s senior. The revelation shocks everyone and leaves Shiraishi demanding an explanation.

Character developments and interactions

• Shiraishi shows that he can contribute offensively as well as defend, and his quick thinking brings help without exposing the conflict directly. Tsukishiro’s claim, however, throws his understanding of his own past into question.
• Utsunomiya channels his anger at Yagami into a risky, decisive fight, then stops when the teachers arrive. He gives Shiraishi a brief, respectful nod before leaving.
• Yagami is overwhelmed and subdued, ending the fight dazed and apparently defeated both physically and emotionally. Tsukishiro’s reference to Shiraishi as his senior makes the defeat more unsettling.
• Ayanokoji remains focused in a difficult two-on-one fight, but reacts strongly to the White Room revelation because he cannot remember Shiraishi as a student there. He openly challenges Tsukishiro’s claim.
• Tsukishiro stays composed even after losing, then deliberately reveals the secret, apparently interested in the confusion it will cause. Kiryūin accepts the end of the fight and departs; Sima releases her when Tsukishiro gives up.

Significant themes

• Teamwork against individual strength: Shiraishi and Utsunomiya overcome Yagami by combining complementary skills.
• Strategy and restraint: Shiraishi’s indirect call for help defeats Tsukishiro’s school-based countermeasures while avoiding a direct accusation.
• Identity and hidden history: The chapter’s final revelation destabilizes Shiraishi’s sense of self and raises questions about what the characters—and Ayanokoji—know of the White Room’s past.

Plot and events

• The White Room began as a government-backed “Talent Development Plan,” created by Naoe Jinnosuke to compete with the Onijima Faction’s Advanced Nurturing High School. Ayanokoji Atsuomi secured the funding from conglomerates, while Naoe’s political influence protected the institution.
• Its early students were children taken from orphanages or struggling families. The White Room also accepted children from powerful families, including Amasawa Ichika and Shiraishi Makoto.
• The curriculum was divided into increasingly difficult levels. After the seventh cohort failed under level six, the staff judged that level six approached the limits of human endurance and used less demanding programs for later cohorts.
• Atsuomi made the fourth cohort a showcase for investors, placing it under Suzukake’s exceptionally brutal “beta” curriculum—harder than level ten. He was willing to sacrifice all seventy-five children, including his own son, Kiyotaka, to produce impressive results.
• The program’s early gains impressed investors, but its cost was severe: eight children had been eliminated by age two, and researchers expected the entire cohort to be eliminated by around age ten.
• Naoe Yasuaki discovered the cohort’s true conditions and removed Shiraishi Makoto from the White Room. This explains why Kiyotaka does not remember him. Tsukishiro later tells Shiraishi that, despite spending only two years there, the White Room may have contributed to his later abilities.

Character developments and interactions

• Ayanokoji Atsuomi emerges as a calculating opportunist: he uses Kiyotaka and the other children as proof of the White Room’s value to investors.
• Naoe Yasuaki acts against the program’s cruelty by taking Shiraishi away after learning about the beta curriculum’s likely death toll.
• Shiraishi Makoto questions whether such a brief stay truly shaped him; Tsukishiro acknowledges his doubts while arguing that the experience still mattered.
• Kiyotaka is presented as both the centerpiece of Atsuomi’s demonstration and a child whose early memories are largely inaccessible.

Significant themes

• The chapter examines the ethics of treating children as experiments and the human cost of pursuing manufactured “genius.”
• It contrasts the White Room’s ambition to quantify and control development with the uncertainty of how much early education shapes a person.
• Childhood memory and identity are also central: Kiyotaka’s lack of memories helps explain why he cannot recognize Shiraishi, even if the experience may have left lasting effects.

Key plot points and events

• After the island exam, Tsukishiro prepares to leave with Yagami, whose identity has been exposed and mission has failed. Tsukishiro insists that Yagami must withdraw because his time limit is over.
• Tsukishiro tells Ayanokoji that he followed orders to get him expelled, while Shiraishi asks what their relationship should be if they meet again. Tsukishiro says he hopes Shiraishi will be his employer.
• Tsukishiro reveals that Amasawa has betrayed the White Room and can no longer return. He leaves the choice to remain at school or leave to her.
• Ayanokoji asks Shiraishi about his father’s intentions. Shiraishi admits he knew Ayanokoji was never truly meant to be expelled, but does not know why his father arranged for him to stay at school. He explains that he has tried to shield Ayanokoji from trouble and help him live more normally.
• Ayanokoji accepts Shiraishi’s explanation and heads back to the others. At the boundary between zones, Ibuki, Amasawa, and Nanase are in a tense but nonviolent standoff. When Shiraishi and Ayanokoji return safely, the group celebrates.
• Shiraishi privately tells Amasawa that she is free to stay at school or leave. She asks about Yagami, then is left to consider her own future.

Character developments

• Ayanokoji shows growing trust in Shiraishi, accepts that Shiraishi has been protecting him, and chooses not to press further about his father.
• Shiraishi makes clear that his intervention is motivated partly by concern for Ayanokoji’s well-being and desire to help him develop emotionally, not just by opposition to the White Room.
• Tsukishiro accepts defeat without further confrontation and hints at a possible future alliance with Shiraishi.
• Yagami is forced to face the consequences of failing his assignment and is taken away.
• Amasawa is cut off from the White Room, leaving her future uncertain; her reaction suggests concern about Yagami as well as herself.

Significant themes

• Freedom and self-determination: Amasawa is given the choice to remain at school or leave, while Ayanokoji’s own path remains entangled with his father’s plans.
• Failure and accountability: Tsukishiro treats Yagami’s missed deadline and exposed identity as decisive failure.
• Trust, loyalty, and hidden motives: Ayanokoji weighs Shiraishi’s honesty and recognizes that their interests align, even though the full truth behind his father’s plans remains unknown.
• Becoming more human: Shiraishi believes ordinary relationships and school life can help Ayanokoji develop beyond the detached conditioning of the White Room.

Character interactions

• Tsukishiro and Ayanokoji discuss the failed expulsion effort; Tsukishiro confirms he acted under orders.
• Tsukishiro and Shiraishi exchange a pointed farewell, with Tsukishiro expressing hope that Shiraishi will employ him someday.
• Shiraishi and Ayanokoji discuss their mutual history, Shiraishi’s protection, and Ayanokoji’s father.
• The returning Ayanokoji and Shiraishi reunite with their waiting classmates, who greet them with relief.
• Shiraishi informs Amasawa of her changed status and leaves her to decide what comes next.

The Uninhabited Island Exam ended, and Shiraishi Makoto learned that Amasawa Ichika blamed him for Yagami Takuya’s expulsion and vowed to defeat him. At dinner, the school announced that nine students had been expelled, but the final rankings remained uncertain.

• The school ended the exam, brought all students back to the ship, and began notifying the lowest-ranked groups about possible expulsions.
• Shiraishi Makoto met Amasawa Ichika on the aft deck, where she accused him of causing Yagami Takuya’s expulsion and declared that she would take Yagami’s place and defeat him.
• Shiraishi Makoto told Amasawa Ichika that her emotional attachment to Yagami showed why Tsukishiro Tokinari had been right to remove her from the White Room, and she left without replying.
• Ichinose Honami told Shiraishi Makoto and their classmates that she had found no sign that anyone from their year had been expelled.
• Sasaki announced that nine students had been expelled, naming Higashikura of Class 3-A, Mikitani of Class 3-B, and Kawakami of Class 3-D as representatives of the affected groups.

Tsukishiro announced the island exam results, and Shiraishi Makoto’s group won first place, boosting his class standing and OAA evaluation. After Shiraishi’s class allocated its rewards, a first-year student learned that Yagami had withdrawn from school.

• Tsukishiro announced the bottom groups, then named Tonokawa’s group third, Kiriyama’s group second, and Shiraishi’s group first.
• Shiraishi received his updated data, which showed Class A at 2,716 points and gave him the school’s first overall OAA grade of A.
• Shiraishi’s classmates returned borrowed class funds, and Class A decided to keep the one million private points as class funds and give its protection point to Class C.
• A first-year student asked why Yagami was absent, and Tsukishiro said Yagami had voluntarily withdrawn from school.

After the school announced Yagami Takuya’s voluntary withdrawal, Shiraishi Makoto checked the uninhabited island exam results and confirmed Sakayanagi Arisu’s group had placed fourth. He paid Kiryūin Fūka for helping Ayanokoji Kiyotaka during the exam, then parted from her aboard the cruise ship as summer vacation began.

• Tsukishiro Tokinari announced that Yagami Takuya had voluntarily withdrawn, leaving the students to speculate about Shiraishi Makoto’s role.
• Summer vacation began aboard the Luxury Cruise Ship, and Shiraishi Makoto went to the lounge to inspect the island exam results.
• Shiraishi Makoto saw that the Sakayanagi Group had placed fourth with a score of 254.
• Shiraishi Makoto met Kiryūin Fūka, added her as a friend, and transferred her one million private points for helping Ayanokoji Kiyotaka during the exam.
• Kiryūin Fūka teased Shiraishi Makoto about his intentions and then left.

Shiraishi Makoto and Sakayanagi Arisu acknowledged the outcome of their contest and discussed the challenge of winning over Sakayanagi Kōhei. Arisu then declared a new contest between their classes and named Kamuro Masumi as the prize if she lost.

• Sakayanagi Arisu offered Shiraishi Makoto cake as his prize for winning their contest, though both felt the contest had lacked a proper confrontation.
• Arisu warned Makoto that he still had to win her father's approval, and Makoto accepted that he would need to make a good impression on Sakayanagi Kōhei.
• Arisu declared that Class B would keep challenging Class A and might ally with Classes C and D, and Makoto welcomed the competition.
• Arisu proposed that Kamuro Masumi become the prize in their next contest, and Kamuro reluctantly agreed after Arisu hinted at a private secret.
• Makoto stopped Arisu from teasing Kamuro further, while Arisu intended to place her trusted friend by his side.

Sakayanagi Arisu kissed Shiraishi Makoto before leaving with Kamuro Masumi, then Shiraishi was summoned to visit the injured Komiya Yogo and Kinoshita Minori. At the infirmary, Ryuen Kakeru gathered Shiraishi and Ayanokoji Kiyotaka to learn about the attack, while Shiraishi suspected Shinohara Satsuki had been involved.

• Sakayanagi Arisu told Shiraishi Makoto that Class A could be targeted by the other three classes at the sports festival, then kissed him and left with Kamuro Masumi.
• Kamuro Masumi worried that reminding Sakayanagi Arisu to take care of herself might cost her the chance to avoid doing favors for her.
• Ibuki Mio told Shiraishi Makoto that Ryuen Kakeru wanted him to visit Komiya Yogo and Kinoshita Minori, and Shiraishi agreed to explain what had happened without revealing the White Room.
• Shiraishi Makoto recalled that Kushida Kikyo had found Shinohara Satsuki's behavior suspicious and decided he would mention it to Ayanokoji Kiyotaka.
• Shiraishi Makoto and Ibuki Mio reached the infirmary as Ishizaki Daichi brought Ayanokoji Kiyotaka and Sato Maya, where Ryuen Kakeru, Yamada Albert, and Shiina Hiyori were waiting with the injured students.

Shiraishi Makoto and Ayanokoji Kiyotaka investigated Yagami Takuya’s attack on Komiya Yogo and Kinoshita Minori, suspecting Shinohara Satsuki had helped him. Ayanokoji concluded that Shinohara had likely been working for Yagami, while Amasawa Ichika had secretly helped him.

• Ayanokoji Kiyotaka brought Sato Maya to the infirmary, where Komiya Yogo and Kinoshita Minori thanked him for helping them.
• Shiraishi Makoto identified Yagami Takuya as the attacker and questioned Sato Maya and Ayanokoji about Shinohara Satsuki’s behavior after the attack.
• Ayanokoji and Shiraishi noted that Shinohara had escaped unharmed despite being with the attacked group, and Ayanokoji pointed out that the flashlights should have made her location visible.
• Ryuen Kakeru called Kaneda Satoru and learned that Shinohara’s watch had broken on the seventh day of the exam.
• Ayanokoji recalled someone following him that day and deduced that Shinohara had been working for Yagami while Amasawa Ichika had been the person who left.