Class D

Biodata

Feature	Value
Name	Class D (D班)
Affiliation	Advanced Nurturing High School
Occupation/Role	First-year class; initially the academy's lowest-ranked class
Status	Promoted to Class C after a recalculation of Class Points; Class C was demoted to Class D 323
First Appearance	Assigned during the first-day class placement 6

Background / History

Class D begins the school year with Ayanokouji Kiyotaka, Horikita Suzune, Hirata Yousuke, Karuizawa Kei, Sudo Ken, Kushida Kikyo, Sakura Airi, Kōenji Rokusuke, Ike Kanji, Yamauchi Haruki, and other students among its members. It is contrasted with the more harmonious Class B and is immediately associated with lower expectations and internal disorder. 6 7

The class receives zero Basic Private Points, leaving many students unable to afford necessities. This scarcity produces high-interest private lending, with borrowers reportedly repaying 1,100 points for every 1,000 borrowed. 35 Its unstable financial condition remains visible later, when Sakura is shown under pressure with only 87 points. 66

During the midterm period, Kushida obtains the previous year's real exam questions and distributes them to the class, granting Class D a major preparation advantage. 59

Organization and Dynamics

Figure	Function within Class D	Notes
Hirata Yousuke	Public leader and mediator	Organizes classmates, encourages cooperation, and repeatedly attempts to resolve disputes. 2 145 151
Horikita Suzune	Strategist and assertive representative	Uses rules and direct reasoning in negotiations and reconnaissance. 138 140
Ayanokouji Kiyotaka	Hidden “Mastermind”	Quietly drives Class D's strategies; later openly admits the role to Ryūen. 297
Kushida Kikyo	Socially influential member	Obtains exam materials, manages relationships, and privately reveals that she is a Beneficiary during the cruise test. 59 176
Sudo Ken	Athletic asset	Possesses top-tier high-school basketball ability and major burst strength, but is prone to impulsiveness. 2 217
Kōenji Rokusuke	Independent, disruptive member	His actions cost the class 30 points during the beach event; he later dismisses the Beneficiary test and submits a guess alone. 164 176

Story Role / Major Arcs

Early Point Crisis

Class D's zero-point status fuels desperation, private loans, and tension over daily living costs. Its conduct is cited as an example of negative “Class Behavior” that could further damage class evaluation. 35 36

Desert Island Special Exam

Class D initially struggles with internal disagreement over point use, particularly between Karuizawa's demand for immediate comfort and Hirata's effort to balance the class's collective interests. 130

Class B confirms a pre-arranged assistance agreement with Class D. Toudou Shizuka warns Horikita that Class C may have infiltrated them through a student placed in their class. 138

Toudou later visits the camp, warns the class about Class C's strategy, and solidifies the alliance. He identifies Hirata, Horikita, and Ayanokouji as its likely leadership core, though the true leader remains concealed at the time. 143 145

Missing-Item Disturbance

Personal items disappear from the girls' tent, triggering accusations against the Class D boys and suspicion toward Class C. Hirata's attempts to calm both sides initially fail. 150

Toudou proposes a joint search rather than mutual accusations. The search does not recover the items, leaving the class's distrust unresolved. 151

Cruise Ship Beneficiary Test

In the Mars Group discussions, Class D is hindered by Class A's refusal to cooperate. Hirata reveals that Kushida privately disclosed herself as a Beneficiary, while Kōenji disregards the group process and independently submits a guess for the Saturn Group Beneficiary. 175 176

Ayanokouji publicly declares himself a Non-Beneficiary alongside students from other classes, breaking the stalemate created by concealed identities. 196

Sports Festival

Class D is placed in the Red Group with Class A. Sudo's confidence in his individual athletic ability creates friction with Hirata and Kushida, who stress teamwork. 203

The class trains for strength and coordination events: Sudo guides the tug-of-war team, while Hirata leads standing-long-jump practice through patient encouragement. Sakura also trains intensely in running. 216

After Sudo causes a disturbance, Hirata covers for him to protect the class's collective result. Toudou criticizes this decision, arguing that Sudo does not appreciate Hirata's sacrifices and that the class has become disunited. 227

Conflict with Class C

Ryūen investigates the hidden strategist responsible for repeatedly disrupting Class C. He considers Ayanokouji, Hirata, and other inconspicuous Class D students as potential masterminds. 285

Ryūen ultimately targets Karuizawa to force out Class D's mastermind. Ayanokouji confronts him directly and admits that he is the mastermind behind the class's strategy. 290 295 297

Promotion

Following a recalculation of Class Points connected to the gymnasium incident, Class D rises to Class C, while Ryūen's Class C falls to Class D. 323

Relationships

• Class B — Allied during the desert-island special exam; Class B confirms its commitment to assist Class D and shares warnings about Class C. 138 145
• Class C — Frequent rival and source of suspected infiltration, theft accusations, and Ryūen's schemes against Class D's hidden mastermind. 138 151 290
• Class A — Grouped with Class D in the Sports Festival's Red Group; later becomes entangled in Class C's plans during the island exam. 141 203
• Toudou Shizuka — An outside observer and intermittent ally who scouts the class, mediates disputes, and works with its leaders during special exams. 139 151 217

Trivia

• Class D's early private-point shortage leads to reports of high-interest lending among its students. 35
• Despite its poor cohesion, the class contains several distinct leadership candidates: Hirata, Horikita, and Ayanokouji. 145
• Its promotion to Class C occurs simultaneously with Ryūen's class being demoted to Class D. 323