Class D

Biodata

Feature	Information
Name	Class D (D班)
Affiliation	Tokyo Metropolitan Advanced Nurturing High School; First-Year Class D
Occupation/Role	Student class; collective competitor in school special exams
Status	Active; entering the cross-grade VIP Exam paired with Year 2, Class C 49 50
First Appearance	Chapter 2 2

Power Progression

Stage / Realm / Level	Chapter	Notes
Lowest-ranked class assessment	7	Rated 62/100 overall and ranked 4th of 4. Its cited assets were Hirata’s leadership, Horikita’s academics, and Ayanokoji’s hidden strength; disciplinary and academic issues remained major liabilities. 7
Uninhabited Island breakthrough	26	Class points rose from -390 to +110 after earning rewards for survival, defending the high ground with Class B, securing the supply crate, avoiding dropouts, and sheltering Hiyori Shiina. Its island performance was evaluated as 1st among the first-year classes. 26
Sports Festival result	37	Finished 2nd overall, behind Class A and ahead of Classes B and C, despite repeated sabotage and injuries. 37

Background / History

Class D began the school year as the grade’s dismissed underdog. Its social atmosphere was shaken when Ayanokoji publicly praised Kushida’s legs, producing dead silence and dividing classmates between support for Kushida and suspicion of Ayanokoji. 2

The class’s low standing became explicit when its overall assessment placed it last among the four first-year classes. Ayanokoji responded by pursuing a “core circle” built around complementary strengths rather than individual excellence: Hirata’s cohesion, Horikita’s analysis, Karuizawa’s information network, and Sudo’s athletic ability. 7 10

Before the Uninhabited Island exam, Horikita accepted that individual effort would not be enough for Class D to succeed. She and Ayanokoji formed a partnership, while Ayanokoji expanded the plan into a broader team structure. 10 11

Organization and Capabilities

• Tactical direction — Ayanokoji Kiyotaka: Accepted Hirata’s proposal to act as Class D’s tactical advisor, setting strategy while others handle execution and coordination. 38
• Execution and coordination — Suzune Horikita and Yosuke Hirata: Horikita handles analytical planning, while Hirata organizes personnel, morale, and class-wide cooperation. 11 38
• Intelligence gathering — Kei Karuizawa: Recruited for her wide social network and ability to obtain information on other classes. 11
• Athletic and defensive strength — Ken Sudo: Used for camp construction, physical tasks, scouting, and frontline defense. 11 16
• Strategic analysis — Hiyori Shiina: While temporarily sheltered by Class D during the island exam, Hiyori provided assessments of all four classes and their leadership weaknesses. 15

Story Role / Major Arcs

Uninhabited Island Special Exam

Class D initially established a beach camp and sent an inland scouting party led by Ayanokoji, Horikita, Sudo, Ike, and Yamauchi. 12

The class took in the injured Hiyori Shiina despite its limited supplies. This decision later earned a special moral bonus under the exam’s hidden internal-governance scoring. 15 26

During the Perch Dispute, Class D seized Lookout Hill first and planted its flag for 100 base points. It then formed an alliance with Class B to hold the high ground against Classes A and C. 16 17

Class D survived Class C’s arson attack on its camp, captured and traded Class C students for supplies, acquired the Special Supply Crate, and used its resources to maintain the defense. 17 19

The class completed the highland defense with Class B, earning 650 points each for the task and ultimately receiving the highest comprehensive evaluation among the first-year classes. 23 26

Sports Festival

Class D entered the Sports Festival with a strategy focused on undercontested events and tailored assignments for less prominent students, including Yamauchi, Hondo, and Yukimura. 31

Class C repeatedly targeted Class D through interference and sabotage, injuring Sudo, Yukimura, Sakura, and Horikita. Ayanokoji, Hirata, Ibuki, and other members prevented several additional disruptions, including a fire-alarm plot and sabotage of the Balance Beam event. 33 34 35 36

Despite the setbacks, Class D won the Team Tug-of-War final against Class A through a tactical loophole. Ayanokoji later substituted into the swimming relay and exposed Sakayanagi’s incorrect rule citation, securing Class D’s final second-place result. 35 37

Internal Betrayal and Rumor Campaign

Kushida’s collusion with Manabe was exposed through evidence obtained by Ibuki. Forced out of Class D, Kushida defected to Class C. 42

The defection was followed by a forum-based smear campaign against Karuizawa and Sakura. Class D was forced to manage the damage caused by leaked personal information and fabricated accusations. 42 43

Kushida later supplied Ryuen with Class D’s organizational details, members’ vulnerabilities, schedules, and contingency plans as Class C’s “Special Consultant.” 45

VIP Exam

For the cross-grade VIP Exam, Class D was assigned to cooperate with Year 2, Class C, led by Atsushi Ryuen. The pairing was considered especially dangerous because Atsushi’s class was expected to undermine Class D from within. 48 49

Ayanokoji was designated as Class D’s traitor for the exam. The class entered the Special Exercise Area equipped with GPS and vital-monitoring wristbands, with the traitor identity set to be revealed after one hour. 49 50

Relationships

• Class B — Allied during the Uninhabited Island exam to defend Lookout Hill and share its rewards. The alliance continued despite Class A’s attempts to exploit internal division within Class B. 17 23 40
• Class C — Primary hostile rival under Kakeru Ryuen; its members tested, ambushed, sabotaged, and attempted to poison Class D during the island exam and Sports Festival. 9 25 33 36
• Class A — Strategic rival that used rule manipulation, pressure on Class B, and sabotage threats to limit Class D’s rise. 32 37 40
• Kikyo Kushida — Former Class D member whose hostility culminated in her defection to Class C and intelligence partnership with Ryuen. 42 45
• Hiyori Shiina — Injured student sheltered by Class D during the island exam; her analysis contributed to the class’s planning, and protecting her earned Class D a moral-score bonus. 15 26
• Year 2, Class C — Assigned as Class D’s VIP Exam partner under Atsushi Ryuen, creating an unstable cross-grade team with an identified traitor. 48 49

Notable Quotes

“Class D, occupying Lookout Hill!” — Ken Sudo 16

“If Class C wants to play these kinds of games, Class D will see it through to the end.” — Ayanokoji Kiyotaka 14

Trivia

• Class D’s Sports Festival color is yellow. 33
• Class D’s Island Exam point increase included a 50-point moral bonus for assisting the injured Hiyori Shiina. 26
• Its class points became positive after the island exam, rising from -390 to +110. 26