Chapter Summaries

Class D tested a cautious, staggered relocation plan after the school introduced dynamic assessment and a morning check-in window. The first group reached the forest edge, but three students took a wrong turn and stopped responding as the check-in deadline approached.

• The school announced that zone risk, supplies, student condition, and control would affect assessment, and set the first check-in window for 06:30 to 06:50.
• Gu Heng proposed moving only part of Class D to test the yellow risk prompt, while Horikita, Yukimura, Hirata, Kushida, and others took separate responsibilities for leadership, supplies, and student status.
• Class D divided the transfer into short segments, with group leaders counting heads and students checking in at public confirmation points; Horikita stayed visibly at the camp while Ayanokoji remained with her.
• At 6:12, Sudo led the first group toward the forest edge as Yukimura, Hirata, and Ike Kanji checked the roster from both ends.
• Hirata reported that three people were missing after taking the wrong marker at a fork, and Gu Heng saw that the terminal still showed 28 minutes before the check-in window closed.

Class D coordinated a search and rescue for three missing students while completing its public status check-in, then established rules for confirming routes, headcounts, and students' movement needs. As the class began confidential health checks, Kushida asked Sakura Airi about her painful right ankle, revealing that she knew about a condition Sakura had kept private.

• Gu Heng, Horikita, and Hirata agreed that the first group would continue to the confirmation point while a controlled rescue team searched for the missing students.
• Sudo and Ayanokoji followed footprints through the woods and found Yamauchi and two girls, one of whom had blisters and trouble walking.
• Sudo and Ayanokoji guided the three students to a public confirmation point, where all five completed check-in before the deadline.
• Gu Heng and Horikita recorded new movement rules requiring double-checked forks, verified headcounts, and no abandoned members.
• Kushida began asking students privately about movement needs, and Sakura Airi denied needing help until Kushida mentioned her painful right ankle.

After Sakura Airi refused to have her ankle trouble recorded, Gu Heng split the class’s records into separate preference, status-limitation, and final-coordination sheets. The new process began working, but Kushida unsettled everyone by revealing she knew Shinohara’s foot had slipped the previous night, and Shinohara demanded to know how.

• Sakura Airi refused to have her ankle written down, and Gu Heng crossed it out rather than recording it anyway.
• Gu Heng created separate sheets for girls’ preferences, status limitations, and final assignments, giving Kushida, Sakura, and Hirata responsibility for each.
• Hirata confirmed that students could change their entries without explaining why, while Sakura recorded limitations without reasons and Kushida recorded grouping preferences.
• Kushida told Shinohara she would reserve her a rear position and keep her away from the water route because her foot had slipped the previous night.
• Shinohara challenged Kushida, asking how she knew about her foot.

Gu Heng and the class organized a first transfer to the new base, keeping all twelve members together despite delays and difficulties. The first wave arrived safely, but supplies remained unconfirmed, the second wave had not left, and Class C appeared at the old campsite.

• Gu Heng ended the dispute over Shinohara’s status, restricted Kushida to collecting preferences, and finalized the first-wave roster with Horikita leading and Shinohara placed in the rear without a load.
• Horikita, Hirata, Sakura, and Sudo kept the twelve-person group together as they moved essential supplies toward the new base.
• Gu Heng ordered a three-minute rest after reports of a slow rear, unsteady steps, and an overly heavy pack, and the group resumed with the rear closed up.
• The first wave reached the new base seven minutes behind schedule with all twelve people, while the supply request was still processing.
• Gu Heng and Yukimura reduced the second-wave load and left some supplies and tarps behind at the old campsite.
• Gu Heng saw two people from Class C approach the old campsite while the second wave remained there and supplies were still unconfirmed.

Gu Heng led Class D’s second group away from the old camp while delaying Class C with a staged empty shelter, but the withdrawal cost them a round of supplies. The group regrouped at the new base, where Ishizaki Daichi delivered Ryuuen’s threat that Class C would target the people Class D had failed to protect.

• Gu Heng ordered Kushida to lead the second group out by the rear route while he and Yukimura stayed behind to remove important supplies and leave the old camp looking occupied.
• Gu Heng and Yukimura withdrew after Class C entered the old camp, and the group learned that its supply request had missed the confirmation window.
• Gu Heng set stricter water limits at the new base, and Horikita and Hirata confirmed that the second group had arrived safely.
• Ishizaki Daichi delivered Ryuuen’s message that Class C would next confront the people Class D had not learned to protect.

With Class D running low on water, Gu Heng divided the students between nearby and distant water sources, keeping the base staffed and coordinating both teams. The nearby team found water and encountered Ishizaki Daichi, who taunted Sudo over the communication channel.

• Yukimura reported that Class D had enough water only until the afternoon, and the terminals confirmed nearby and distant water sources.
• Horikita led the distant-source team, while Sudo, Ike, Ayanokoji, and two steady students set out for the nearby source; Gu Heng stayed to coordinate.
• Ayanokoji spotted footprints near the direct route, and Sudo changed the nearby team's course to avoid them.
• The distant team reported steady progress, while the nearby team later reported that it had spotted water and people.
• Ishizaki Daichi contacted the nearby team and taunted Sudo, saying Ryuuen had expected Class D to send him.

Sudo's group secured water from a nearby source while Ishizaki tried to provoke Sudo into starting a recorded conflict. They returned to the new base with the water and no disciplinary incident, but their group was assigned the next high-competition resource confirmation.

• Ishizaki blocked the route and taunted Sudo while Class C waited for him to strike first.
• Sudo drew Ishizaki toward the side slope and sent Ike Kanji through the opening to complete Class D's confirmation.
• Sudo cut his palm on a tree root, and Class C eventually let the group leave after Class D secured the water.
• Sudo's group returned to the new base in the nineteenth minute, and Gu Heng checked their records while Hirata treated Sudo's hand.
• Every task group's terminal announced that the next confirmation window would open in forty minutes and linked the high-competition resource point to Sudo's group.

Class D reorganized its teams and night duties while Gu Heng noticed that everyone was relying on Hirata to handle every problem. After Hirata was forced to rest, a dispute over the girls’ night point assignment began, and he stirred to intervene when Kei Karuizawa was singled out.

• Gu Heng removed Sudo and Ike Kanji from the next round, then assigned two fit volunteers from the returning far team to replace them.
• Hirata was repeatedly interrupted with requests about Sudo’s bandage, roster changes, water, and Sakura’s ankle while Class D prepared its night-shift roster.
• Gu Heng took over the night duty board, and Horikita and Sudo persuaded Hirata to rest for fifteen minutes.
• Gu Heng and Horikita began arranging the night roster while Kushida collected the girls’ preferences without assigning positions.
• The girls argued over the night point position, and Kei Karuizawa refused to walk at the front after her name was written in the slot.
• Hirata opened his eyes and began to rise as the girls’ argument fell silent.

Gu Heng reorganized the night patrol planning so Sakura, Yukimura, Kushida, and Hirata each handled a separate responsibility, preventing Hirata from having to resolve every dispute. After the assignments were settled, Horikita sent Gu Heng a photo showing that someone had secretly photographed the group list, with Kushida's hand visible in the frame.

• Gu Heng stopped Hirata from stepping into the girls' argument and told them Karuizawa would not be forced into the front patrol position.
• Gu Heng assigned Sakura to collect condition restrictions, Yukimura to explain the rules, Kushida to record willingness, and Hirata to coordinate the final results.
• Karuizawa agreed to patrol in the second position, Shinohara moved to the middle, and Sudo volunteered for the front perimeter.
• Hirata finalized the patrol groups, keeping Sakura and Karuizawa apart and neither at the front for the night.
• Horikita sent Gu Heng a side-angle photo of the assignment sheet, and he recognized Kushida's hand in the corner, suggesting the list had been secretly photographed.

Gu Heng reorganized Class D after a photo exposed part of its work assignments, while Ryuuen pressured the group through Ishizaki and the contested water source. The night patrols resumed successfully, but Hirata’s rules explanation sheet disappeared from the base.

• Gu Heng said Kushida’s photographed preference sheet could remain in use, and Sakura agreed to check it against the status restrictions while Kushida continued collecting preferences.
• Gu Heng identified Ryuuen’s tactic as an attack on Class D’s coordination, then assigned new roles and had Horikita announce the revised patrol order.
• Ayanokoji and two substitutes took the confirmed side-slope route and secured a nearby water source while Sudo stayed at the base.
• Class D resumed its night patrols with redistributed positions, and the teams completed their first shift and began the second.
• Gu Heng checked the four coordination sheets and discovered that Hirata’s rules explanation sheet was missing, leaving only a faint mark on the rock.

After Hirata’s final coordination copy disappeared, Horikita organized a temporary roster so the second patrol round could proceed while the group kept the missing sheet, the photo, and the stalled western reports separate. The patrol left with assignments confirmed, and Kushida revealed that Inokashira had seen something but was afraid to speak in front of everyone.

• Yukimura confirmed that the other three roster copies remained and cautioned Horikita that the photo did not prove who had taken Hirata’s missing copy.
• Gu Heng and Yukimura recorded the photo’s unknown carrier and the halted western-side reports as separate, unconfirmed issues.
• Horikita took control of temporary adjustments, and Yukimura reassigned the second patrol round after Karuizawa and Shinohara confirmed their positions and loads.
• Horikita marked the final coordination copy as missing with the cause undetermined, and the patrol departed after each member personally confirmed the temporary roster.
• Kushida told Gu Heng that Inokashira had seen something, and Gu Heng saw a trembling hand gripping the rain tarp behind the tent.

Gu Heng accepted responsibility after his accusation against Yamauchi cost Class D a point, offering to cover emergency supplies and agreeing to new investigation rules. Horikita’s emergency call from Sudo warned that someone was burning and might have to withdraw.

• Class D lost one Class Point after the west-side low-score stronghold confirmation timed out, and the group challenged Gu Heng for pressing Yamauchi without evidence.
• Gu Heng admitted he could not restore the point and promised to fund emergency supplies through a recorded public ledger.
• Horikita, Hirata, Yukimura, Sakura, and Kushida established rules requiring investigations to be approved and recorded, while Gu Heng agreed to follow them.
• Hirata said he would handle Inokashira’s roster issue separately, and Horikita kept the group’s shifts and supply checks moving.
• Horikita received an emergency call from Sudo, who reported that someone was burning and might have to withdraw.

Class D used three points to treat Tonomura’s fever and established rules for deciding when students needed medical supplies. After the crisis, Gu Heng received a private message from Hashimoto Masayoshi offering information about Class A’s medical supplies, and he decided to meet him despite Horikita’s warning.

• Sudo reported that Tonomura had a high fever and might have to withdraw, so Gu Heng proposed criteria for deciding when to use medical supplies.
• Horikita decided to spend three points on medicine for Tonomura and established that she would make similar decisions, with Gu Heng advising her.
• Horikita reorganized the group’s duties, and Tonomura took the medicine and remained under observation overnight.
• Horikita confronted Gu Heng about taking responsibility for the point loss, and he argued that the class needed to trust its rules.
• Hashimoto Masayoshi messaged Gu Heng with an offer to share Class A’s medical supply plans, and Gu Heng decided to meet him to learn what he wanted.

Gu Heng, Horikita, and Hirata tried to preserve Class D’s trade with Class B as Class C spread rumors and disrupted the meeting. After Ishizaki occupied the agreed site, Ichinose came to the alternate location, where a new forum accusation left her classmates unsure whether to proceed.

• Hashimoto’s message and forum screenshots revealed that Class C was using rumors about Class D’s instability to make other classes withdraw from trades.
• Gu Heng reassured Ichinose that Class D would bring trade records for inspection, and Horikita agreed to send only the relevant pages with Gu Heng and Hirata present.
• Gu Heng, Horikita, and Hirata found Ishizaki and several Class C students blocking the agreed trading site, so Horikita moved the meeting upstream.
• After an anonymous forum post accused Class D of luring Class B to an unconfirmed location, Ichinose confirmed she would come to the alternate site.
• Ichinose arrived with two Class B students, who hesitated after seeing the accusation, and she waited for Gu Heng to give them a solid answer.

Gu Heng negotiated a limited salt-tablet exchange with Ichinose’s Class B while keeping Class C from disrupting the handoff. Class B completed the exchange but suspended the next one until Ichinose reassessed Gu Heng and the risks of helping Class D.

• Gu Heng persuaded Ichinose to move the exchange away from Class C’s occupied origin point, with Class D accepting responsibility if the handoff had to stop.
• Horikita told Ishizaki to step back, clearing the way to White Stone for Class B and Class D to exchange supplies.
• Ichinose agreed to exchange only the current batch, and both classes inspected and recorded the salt tablets without sharing full records or routes.
• Gu Heng declined Ichinose’s offer of a safer route, warning that it could expose Class B to Class C and make them bear Class D’s risks.
• Ichinose completed the exchange, then suspended the next morning’s batch while she reassessed Gu Heng and what help Class B could safely offer.

Class D declined the Northern Rain Slope checkpoint and named Suzune Horikita as its public nighttime representative while relocating to a more defensible camp. After the group secured the new camp, someone approached the white-rope boundary in the rain.

• Gu Heng and Yukimura advised Class D not to risk the two-point Northern Rain Slope checkpoint during the rain and under the new nighttime alert rules.
• Horikita volunteered as Class D's public nighttime representative, and the school announced her name.
• Horikita ordered Class D to move to a temporary camp, while Hirata assigned duties and Gu Heng recorded the checkpoint decision.
• The group secured the camp behind a white-rope boundary and confirmed its people and supplies were accounted for.
• A stranger approached the boundary, leaving a footprint in the mud and briefly flashing a light from the treeline, and Horikita ordered everyone to stay inside.

Horikita enforced strict camp boundaries while Gu Heng warned Class D not to take the bait of Class C’s nighttime harassment. After a system penalty appeared, Gu Heng discovered that someone had replaced the second supply team’s route sheet, leaving the class with a hidden sabotage problem.

• Horikita kept her name as the public person in charge and restricted everyone to the camp while assigning Hirata to organize duties.
• Gu Heng stopped Hirata from trying to comfort the entire class and told him to direct people to answer specific supply and safety questions.
• Class C repeatedly made noises and threw mud near the white rope, but Horikita prevented Sudo and the others from crossing the boundary.
• Gu Heng and Ayanokoji noticed irregularities in the footprints outside the camp, while Horikita continued taking attendance and checking supplies.
• The system announced a three-point deduction for a missed western confirmation and recorded Horikita as the nighttime person in charge.
• Gu Heng inspected the second supply team sheet and found that someone had replaced the route page.

Class D discovered that a forged route page had sent the second supply group off course, costing them three points and nearly exposing Horikita to further deductions. Gu Heng preserved evidence and suspected Kushida based on a handwriting detail, but he had no proof and left the investigation unresolved.

• Horikita and Yukimura found that four altered words had redirected the second supply group and caused Class D to miss its checkpoint deadline, losing three points.
• Yamauchi denied changing the page, while Gu Heng stopped Horikita and himself from messaging the group and had Hirata send a brief instruction to halt and take shelter.
• Yukimura identified signs that the forged page had been made using access to Class D’s internal form, and the group photographed the evidence without accusing anyone.
• Hirata learned that two Class C students were waiting near the western rocky slope, while the second supply group had stopped without making contact.
• Gu Heng noticed that the forged page’s final hook resembled Kushida’s handwriting, but he kept his suspicion to himself because it was not proof.

Gu Heng stopped Class D from confronting the suspected information leak and devised a fake chart to trace where leaked details went. The class prepared the decoy while keeping real movements verbal, and Ayanokoji added himself as a secondary cover candidate before the complete chart was secured.

• Gu Heng forbade anyone from examining the suspicious sheet or asking who the unfinished sentence implicated, warning that a confrontation could reveal what exposed the leak.
• Gu Heng proposed making a fake supply and protection chart to trace the leak, while Horikita and Hirata agreed to keep real movements and instructions separate from the paper plan.
• Hirata confirmed that the second supply group was safe and waiting at the rocky slope, and Gu Heng ordered future messages to contain only brief instructions.
• Gu Heng, Yukimura, Horikita, and Hirata refined the decoy chart, ensuring its details looked authentic without exposing the real route or protection arrangements.
• Ayanokoji added himself to the master chart as a secondary cover candidate, and Horikita secured it while Hirata burned the remaining blank sheet.

Gu Heng divided Class D’s information into genuine but incomplete sheets and used a false gathering point to test who might leak the plan. The chapter ended with Kushida noticing the decoy destination on her page while Horikita warned her not to act without verbal confirmation.

• Ayanokoji persuaded Gu Heng to list him as a secondary decoy candidate, and Gu Heng kept the name on the master sheet.
• Gu Heng and Horikita established rules restricting paper-based orders, sharing only partial information, and requiring verbal confirmation for route changes.
• Gu Heng distributed role-specific sheets to Sudo, Ike Kanji, Yukimura, Sakura, and Karuizawa while Hirata mapped limited message routes.
• Gu Heng prepared a girls’ side chart that named the clearing north of the Old Water Source as a false temporary gathering point.
• Horikita gave the chart to Kushida and told her to explain only its first half and wait for verbal confirmation before anyone moved.
• Kushida paused over the false destination before assuring Horikita she understood, and Horikita warned that she would hold Kushida accountable for any premature move.