Chapter Summaries

Ryuuen assessed the Deserted Island exam rules and resolved to pursue more gains, while Class D decided who would remain on the island after exhausting its base Points. Sixteen students stayed behind, leaving the class split between the island and the cruise ship.

• Oreki reasoned that Ryuuen would act to prevent Class D from gaining a large bonus through its occupied bases.
• Class D discussed whether to withdraw after trading supplies to Class A and using all 300 base Points; Hirata asked half the class to stay with Kōenji.
• No one initially volunteered, and Kōenji remained silent while watching himself in a mirror.
• Horikita Suzune, Kikyou Kushida, and Meiyu Wang volunteered to stay, followed by Airi Sakura and Yamauchi.
• Ayanokouji and Sudou also chose to stay, bringing the number of Class D students remaining on the island to sixteen.

Katsuragi and Oreki investigated Class C after its students appeared to withdraw from the island exam, but Oreki suspected Ryuuen had stayed behind as Class C’s leader. They planned to confirm whether Class C could still be chosen in the leader-guessing stage on the seventh day.

• Katsuragi worried that Ryuuen’s apparent withdrawal was a trick, so Oreki agreed to inspect Class C’s base with him.
• Oreki noticed Horikita and Kikyou Kushida had stayed behind, and Kushida seemed angry that she had been excluded from Class D’s Points plan.
• Honami Ichinose and three Class B students joined Oreki and Katsuragi on their way to check Class C’s base.
• The group found Class C’s occupied base littered with food, bottles, and unused supplies, leading Ichinose to conclude that Class C had withdrawn.
• Oreki pointed out that no one had confirmed Ryuuen himself had left, and he and Katsuragi realized Ryuuen might still be on the island as Class C’s leader.
• Oreki said they could confirm their suspicion on the seventh day by checking whether Class C remained eligible in the leader-guessing stage.

Oreki warned Class A that Ryuuen could expose their leader and urged the rival factions to protect their information instead of sabotaging one another. After Kamuro brought the battered Rei Ibuki to camp, Oreki decided to take her to Ichinose at Class B Camp.

• Oreki explained how Ryuuen could identify Class A’s leader and help other classes cost them base and reward Points.
• Oreki warned Katsuragi and the others to guard against outsiders, easing tensions between the Katsuragi and Sakayanagi factions.
• Oreki returned to camp and found that Kamuro had brought Rei Ibuki, a battered Class C student, back from the island.
• Hashimoto reported that Ryuuen had beaten Ibuki again after she resisted his plan to pocket Class C’s payment from Class B.
• Oreki told Kamuro to take sugarcane and corn to Ichinose at Class B Camp and send Ibuki to her.

Oreki brought the injured Ibuki from Class A to Class B, presenting her as a victim of Ryuuen’s violence and asking Ichinose’s class for help. Class B’s response was sympathetic, but Oreki’s true intentions remained unclear.

• Oreki recognized Ibuki as the Class C spy and brought her, Kamuro, and Kito to Class B’s camp.
• Oreki offered Class B sugarcane and corn as humanitarian support and said he had a request.
• Ichinose recognized Ibuki, and Oreki explained that Ryuuen had taken Class B’s gains and that Ibuki feared returning to him.
• Ibuki followed the story Ryuuen had given her, saying she hated him and pointing out her bruised arm.
• Kanzaki agreed that Ibuki should not have to return to Ryuuen, while Oreki said Kamuro had found her.

Oreki arranged for Ichinose’s Class B to shelter Ibuki and suggested they report Ryuuen’s violence after the exam. He then spoke with Ichinose away from camp, where she revealed how exhausted the day’s search had left her.

• Oreki told Ichinose that Ibuki could testify against Ryuuen and that Class C might lose fifty class evaluation points if they reported his violence to the Student Council.
• Ichinose agreed to take Ibuki in, and Class B students eagerly tended to Ibuki’s injuries while considering how to document them as evidence.
• Oreki and Ichinose walked away from the camp to talk, and Oreki noticed that his night vision had changed after being altered.
• When Ichinose showed how tired and sore her feet were, Oreki suggested they stop walking and return to camp.

Oreki pieced together Ryuuen’s plan to leave a Class C spy with each rival class and warned Ichinose that Kōenji planned to claim most of the island’s bases. On the walk back, Oreki explained to Kamuro why he had brought Ibuki to Class B, leaving her to investigate what Ibuki had buried.

• Ichinose described Class D’s advance occupation of the bases, and Oreki inferred that Kōenji had scouted the island by swimming there the previous night.
• Ichinose revealed that Ryuuen had abandoned Kaneda, Ibuki, and Daichi Ishizaki after they opposed him, and Oreki deduced that Ryuuen had planted one of them in each rival class.
• Oreki warned Ichinose that Kōenji intended to earn six hundred class evaluation Points by occupying thirty-four bases, so Class B would likely lose the base it planned to claim.
• Oreki walked back with Kamuro and explained that Class B had found a Class C student, meaning Class D probably had one too and Ibuki might be a spy.
• Kamuro told Oreki that Ibuki’s dirt-covered hands looked as if she had been burying something, and Oreki told Kamuro to investigate.

Oreki and Kamuro found a walkie-talkie and camera buried near where Ibuki had been discovered, confirming that she was a spy. After the morning roll call, Oreki reviewed the classes’ plans and set out to explore the island for special rewards.

• Oreki had Kamuro dig near the spot where Ibuki had been found, and they uncovered a walkie-talkie and camera.
• Kamuro realized her actions could have cost Class A up to 270 class evaluation Points, so she anxiously began serving Oreki at camp.
• At morning roll call, Majima confirmed that all forty Class A students were present, and Katsuragi outlined the class’s plans for bases and supplies.
• Oreki noticed that Class B had lost its camp base to Kōenji and that Ishizaki had joined Class D as a spy.
• Oreki headed toward the White Tower before continuing his search for special rewards elsewhere on the island.

Oreki found the hidden Caretaker's Cabin beneath the Central Tower and discovered the 41st Base, while Kushida arrived and the teachers confirmed that students from Classes A and D had found it. The teachers revealed that the cabin was an Easter egg offering fifty reward points, as Ryuuen remained hidden on the island to compete in the leader-guessing segment.

• Oreki searched near the Central Tower, found a concealed ladder, and climbed down to the Caretaker's Cabin.
• Oreki found the cabin's Card Reader and confirmed that the undiscovered location was the 41st Base.
• Kushida reached the cabin, and Oreki invited her to climb down with him.
• Hoshinomiya told the teachers that students from Classes A and D had found the 41st Base.
• Suma Bando explained that Ryuuen, Ibuki, Daichi Ishizaki, and Kaneda had stayed on the island, with Ryuuen hiding to enter the leader-guessing segment.
• Hoshinomiya explained that the cabin was an Easter egg proposed by the Chairman and would award fifty points to students who found it and used its Card Reader.

Hoshinomiya Chie explained to Suma Bando that Ryuuen had planted spies in other classes, then showed him evidence that Ryuuen had assaulted Ibuki and Kaneda. She expected the Student Council to punish Ryuuen and Class C, while a conversation with Chabashira ended with Chie noting that Classes A and D were acting strangely.

• Suma Bando learned that Ryuuen's three remaining students had been taken in by Classes B and D, leaving Class B with two Class C spies and no spy in Class A.
• Hoshinomiya Chie showed Suma Bando a photo of injured Ibuki and Kaneda and said her students planned to report Ryuuen for assault.
• Suma Bando realized Ryuuen could face a 100-point class deduction and a suspension, which might cancel out the points he gained from learning other classes' leaders.
• Hoshinomiya Chie returned to the supply exchange point, where Chabashira cautioned her against casually calling students spies.
• Hoshinomiya Chie looked at Teacher Majima's computer and remarked that Classes A and D were both acting strangely.

Oreki brought Kushida to the hidden 41st Base and urged her to release the stress she had accumulated while mediating conflicts in Class D. He then returned to the cabin to choose books, leaving their arrangement and the island exam ongoing.

• Oreki noticed Kushida following him after roll call and led her to the hidden 41st Base.
• Oreki explained that Kushida could not leave the island because Class D needed her to mediate conflicts, and he offered her a private place to vent.
• Kushida admitted that she wanted to kick the wooden post and release her pent-up emotions.
• Oreki returned to the cabin and picked up David Copperfield and Humiliated and Insulted from its bookshelf.

Kikyou Kushida met with Houtarou Oreki for their usual session, asked why he had excluded her from Class D’s exam plan, and learned he might marry Horikita Suzune in the future. Kushida, seeing Oreki’s interest in Horikita as a challenge, decided to make a move on him and shared some information.

• After showering, Kikyou Kushida sat on Houtarou Oreki’s lap to begin their session.
• Kushida asked why Oreki had left her out of the exam plan, and he said he wanted to protect her reputation as Class D’s little angel.
• Kushida asked whether Oreki liked or was dating Horikita Suzune, and he said he might marry her in five or ten years.
• Kushida interpreted Oreki’s answer as interest in Horikita and decided to make the first move, then contributed information before they left the cabin.

Oreki and Kushida returned to Class D’s camp, where students were guarding their base after Kōenji had seized Class B’s vegetable garden. The chapter also left the teachers wondering why Oreki and a Class A student had spent an hour together at the newly discovered base, while Class D’s deal with Class A promised continued living expenses.

• The teachers waited on the beach and wondered why nobody had returned to claim the newly discovered 41st Base.
• The teachers speculated that Oreki and the Class A student might have used the cabin as a secret place to meet.
• Oreki and Kushida arrived at Class D’s cave camp, where three students guarded the entrance against possible retaliation.
• Kushida explained that Kōenji had seized Class B’s base overnight, forcing its students to relocate and leaving them exhausted.
• The Class D students’ agreement with Class A guaranteed Class D monthly living expenses through graduation, even if its class evaluation Points fell to zero.

Oreki visited Class D’s base and spoke with Ayanokouji and the students who had stayed behind, while considering why Kushida had followed him. Ishizaki asked about Class C’s missing students, and Oreki explained how Ibuki ended up with Class B.

• Oreki told Ayanokouji that Class B and Class C’s alliance let Class B preserve its base Points until the exam ended.
• Yukimura told Oreki that the boys had gone searching for undiscovered bases while the girls gathered fruit and corn.
• Oreki noticed Kushida’s mood worsen and suspected she had left the camp to avoid the boys’ attention.
• Ishizaki told Oreki he was worried that other students who opposed Ryuuen might be stranded on the island.
• Oreki explained that Class B had taken Class C’s supplies and then taken in Ibuki after his classmates found her alone beneath a tree.

Oreki explained to Daichi Ishizaki that he was still honoring his loan agreement with Class B, making Ishizaki question Ryuuen’s claims about him. He then spoke with Horikita Suzune about the Deserted Island exam’s reward Points and Daichi’s presence in Class D, leaving her wondering why he had sought her out.

• Oreki told Daichi Ishizaki that Nagumo’s five-million-Point requirement had stopped the shop plan, but he was still honoring his agreement to pay Class B interest.
• Oreki left Class D’s cave with Kikyou Kushida, who said she was disgusted by the boys who wanted to confess to her and would reject Oreki too.
• At the girls’ cornfield, Oreki spoke briefly to Airi Sakura, then called Horikita Suzune away to spare Sakura the other girls’ attention.
• Horikita questioned Oreki’s decision to give Kōenji two hundred reward Points, and Oreki said Class D needed someone to keep its students from breaking their agreement.
• Horikita told Oreki that Daichi Ishizaki had entered Class D and seemed unusually friendly toward Kōenji; Oreki said Ishizaki was a Class C spy and Kōenji would handle him.

Oreki restored Horikita Suzune’s health by holding her hand, while Horikita wondered whether her reactions to him meant anything and questioned him about Kikyou Kushida. After Oreki sent Horikita back to the cornfield, he spoke with Airi Sakura about her past as a model and her trouble with unwanted attention.

• Oreki asked Horikita to shake his hand again, and she agreed after deciding he needed help resisting Kikyou Kushida’s beauty attacks.
• Oreki used his Restoration Ability to return Horikita’s physical condition to before she fell ill.
• Horikita kept holding Oreki’s hand and questioned him about his feelings, his body temperature, and what had happened with Kikyou Kushida.
• Oreki took Horikita back to the cornfield and then asked Sakura if he could touch her head.
• Oreki offered to help Sakura with people who had confessed to her, and Sakura revealed that she used to be a model but feared being pestered because she was introverted.

Oreki’s interactions with Sakura, Kushida, and Horikita drew attention on the island, while Sakayanagi Arisu received a message about her upcoming exam. Over the next few days the island exam continued, and Kushida reported that Class B and Class D had been taken down.

• Yamauchi and Ike discussed using failed confessions to improve their chances with girls, but saw Oreki patting Sakura’s head and lost their nerve.
• Kamuro noticed a girl’s scent on Oreki’s clothes, and Oreki teased her about sniffing them.
• Sakayanagi Arisu visited her father at school, received a message from a third-year student, and realized her exam had arrived.
• Horikita Suzune continued shaking hands with Oreki each day, while Oreki later accompanied Kushida to the manager’s cabin.
• On the sixth day, Kushida told Oreki that Class B and Class D had been taken down.

Class A prepared for the deserted-island exam results as Oreki explained their expected score to Kamuro, while Ryuuen unexpectedly appeared with Class C at the final announcement. Ryuuen learned that all three other classes had guessed his identity as Class C’s leader, leaving him with zero points and a further class-point deduction.

• Oreki and Kamuro cleaned Class A’s campsite while Kamuro asked how the class had done; Oreki estimated that Class A would finish with about 470 points.
• Oreki noted that Class B had lost its leader’s secrecy after Ibuki and Kaneda were exposed as spies, leaving Ichinose’s class in a difficult position.
• Ryuuen appeared with the students at the results announcement despite Class C having been declared withdrawn, revealing that he had survived on the island.
• Katsuragi, Ichinose, and Meiyu Wang told Ryuuen that their classes had all named him during the leader-guessing phase.
• Majima informed Ryuuen that he had earned zero points and that Class C would lose another 100 class evaluation points.

Kakeru Ryuuen discovered that his leader identity had been guessed by every class, while Class D’s leader had changed from Rokosuke Kōenji to Meiyu Wang. As the island exam results were announced, Ryuuen realized his week of hardship had earned him nothing.

• Ryuuen learned that Houtarou Oreki had taken Ibuki from Class A and delivered her to Class B, leaving him with only two leader-guessing rewards to pursue.
• Ryuuen confirmed that Rokosuke Kōenji’s Leader Card had been genuine and expected Class D’s base rewards to be invalidated if Kōenji’s identity was guessed correctly.
• Ryuuen found Katsuragi, Totsuka Yahiko, the Class B representative, and Meiyu Wang waiting at the beach, and learned they had all written down his name as Class C’s leader.
• Ryuuen realized he had guessed Chihiro Shiroha correctly but Kōenji incorrectly, while every other class had correctly identified him, leaving him with zero points.
• Teacher Majima began announcing the exam results at ten o’clock, with the teachers and Ryuuen’s class representatives gathered to hear them.

Class D won the Deserted Island exam with 650 points, moving above Class C in the class rankings, while Ryuuen’s Class C scored zero. After Ryuuen demanded to know how the other classes identified him as their Leader, Ichinose explained how Ibuki had stolen and photographed Class B’s Leader Card.

• Teacher Majima announced that Class C had scored zero, Class B 300 points, Class A 471 points, and Class D 650 points.
• The new evaluation scores placed Class D above Class C, prompting Airi to note that their class had risen to Class C.
• Ryuuen rejected the result and went to Ichinose to ask how his identity as Leader had been exposed.
• Ichinose recounted that Ibuki had stolen Chihiro Shiroha’s Leader Card and photographed it while Shiroha was bathing.
• Shiraha realized Ibuki had escaped with the camera and tearfully told Ichinose what had happened.

Class B learned that Ibuki had exposed Chihiro Shiroha as their leader, putting their points at risk, while Ryuuen demanded that Ichinose explain why Class B had named him as a leader. On the sixth day, Oreki decoded a message asking whether he and Sakayanagi’s little princess were dating, as Kamuro attended to him and their classmates watched.

• Class B realized Ibuki was a spy and feared that Class C could expose their leader and cost them up to 167 Points.
• Shiraha blamed herself for losing the Leader Card while her exhausted classmates comforted her.
• Ryuuen interrupted Ichinose, demanded to hear what happened next, and complained that Class B had named him as a leader.
• On the rainy sixth day, bored Class A students in a cave played with Morse Code, and Oreki decoded a question about whether he and Sakayanagi’s little princess were dating.
• Kamuro brought Oreki a peeled apple, and he realized his classmates were speculating about his relationship with Sakayanagi Arisu.