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Biodata
| Feature | Details |
|---|---|
| Name | Class A (A班) |
| Affiliation | Tokyo Metropolitan Advanced Nurturing High School; first-year class 4 9 |
| Status | Active 148 |
| First Appearance | Chapter 4 |
Overview
Class A is the first-year class initially ranked at the top of the academy's meritocratic class system. Its students appear more attentive, orderly, and disciplined than the students assigned to the other three classes during the entrance ceremony. 4 5
The class is academically successful, but its internal unity is undermined by a power struggle between the Katsuragi and Sakayanagi factions. 32 127
Class Standing
| Period | Class Points / Result | Notes |
|---|---|---|
| First monthly ranking | 940 CP | Ranked first while Class D fell to 0 CP. 29 |
| Following monthly ranking | 1004 CP | Retained first place. 53 |
| Before the Uninhabited Island Exam | Around 1,000 CP | Held a substantial lead over the other classes. 91 |
| Uninhabited Island Special Exam | 120 points; 3rd place | Internal betrayal and factional conflict contributed to the result. 127 |
Leadership and Factions
| Figure / Faction | Position and influence |
|---|---|
| Sakayanagi Arisu | The chairman's daughter and a semi-leader of Class A. Her high intelligence and preference for controlling strategic situations make her a core figure within the class. She is absent from the Uninhabited Island Special Exam due to illness. 21 115 |
| Kohei Katsuragi | A pragmatic leader who takes charge while Sakayanagi is absent. He prioritizes long-term class interests, risk assessment, and secure resource management. 99 115 |
| Yahiko Totsuka | Loyal to Katsuragi and selected as Class A's official leader during the Uninhabited Island Special Exam. 99 126 |
| Katsuragi Faction | The group aligned with Katsuragi; it is left reeling after the island-exam defeat and blames the rival faction for sabotaging the class. 127 |
| Sakayanagi Faction | A rival internal faction implicated in Class A's betrayal during the island exam. 127 |
Known Members
| Member | Notes |
|---|---|
| Sakayanagi Arisu | Semi-leader; chairman's daughter. 21 |
| Kohei Katsuragi | Interim decision-maker during Sakayanagi's absence. 115 |
| Yahiko Totsuka | Island-exam leader and Katsuragi loyalist. 99 126 |
| Masumi Kamuro | A guarded Class A student who follows the class's silence strategy during the VIP Exam. 134 136 |
| Ran Morishita | Curious about Linmu Fujimiya's divination despite Class A's silence strategy. 135 148 |
| Hayato Kito | Participates in Class A's silence strategy in the Snake Group. 134 135 |
| Masayoshi Hashimoto | Exposed by Totsuka as the mole responsible for betraying Class A during the island exam. 127 |
History
Early Position
Class A begins the school year as the apparent model class. Its students stand with good posture, speak in orderly voices, and remain more focused during the entrance ceremony than their counterparts in Class D. 4 5
The class establishes an early lead of 940 Class Points and later reaches 1004 CP. Its strong academic performance is specifically acknowledged by Manabu Horikita. 29 32 53
Uninhabited Island Special Exam
With Sakayanagi absent, Katsuragi manages Class A's operations. The class secures a cave containing a check-in device, using the defensible location as its base. Katsuragi also acts as a decoy for the true class leader, Totsuka. 99 109 126
Katsuragi avoids conflict with Class D over a cornfield, judging that Class B—not the lower-ranked Class D—is Class A's principal competitive threat. He also maintains a secret agreement with Kakeru Ryuen: Class C would provide supplies and intelligence, while Class A would supply Ryuen with private points. 115 126
The arrangement collapses amid internal betrayal. Class A finishes third with 120 points rather than the result Katsuragi expected, prompting open conflict between the Katsuragi and Sakayanagi factions. 127
VIP Exam
Class A adopts a unified silence-and-stalling strategy: members are instructed not to disclose information or engage with other groups unless necessary. 135 136
In the Snake Group, Linmu Fujimiya uses purported Tarot divination to pressure Kamuro, Kito, and Morishita into admitting that no Class A student is the VIP. The admission breaks the class's strategy and helps expose Maya Sato of Class D as the group's VIP. 136 147
Strategy and Characteristics
- Academic discipline — Class A's early behavior and results mark it as the grade's leading class. 4 29 53
- Pragmatic resource control — Under Katsuragi, the class prioritizes secure bases, long-term gains, and avoiding unnecessary conflicts. 109 115
- Information security — The class uses decoy leadership and later adopts a silence strategy during the VIP Exam. 99 126 136
- Factional instability — Rival groups within the class compromise collective decision-making and contribute to its island-exam defeat. 127
- Cautious external posture — Class A members scrutinize outsiders at their cave base and are wary of Linmu's motives. 109