Class D

Biodata

Feature	Information
Name	Class D (D班)
Affiliation	Tokyo Metropolitan Advanced Nurturing High School
Occupation/Role	Lowest-ranked first-year class; participant in the school's inter-class competitions and special exams
Status	Active
First Appearance	Chapter 1

Background and Standing

Class D begins as the school's lowest-ranked first-year class. Its students initially receive 100,000 Private Points each, but the school links future allowances to Class Points and overall class standing. The class is therefore placed at a structural disadvantage once its Class Points are depleted. 2 19

The school's first-month Behavioral Ethics Exam confirms Class D's position: it suffers the greatest deductions and falls to 0 Class Points, leaving its students without their monthly Private Point allowance. Chabashira Sae further explains that failing a subject can result in expulsion. 19

Although Class D contains several individually capable students, it is repeatedly hampered by poor discipline, factional conflict, and short-sighted actions. Kamio Tatsuya characterizes the class as full of “defective products,” while other students question why academically or socially capable classmates such as Hirata Yosuke and Yukimura Teruhiko were assigned there. 20

Class Point Record

Period	Reported Class Points	Notes
After the Behavioral Ethics Exam	0	Class D loses all Class Points and its monthly Private Point allowance. 19
Midterm Exam period	+77	The class receives 77 Class Points for its average score, though a dispute prevents Private Point distribution. 49
Following an unspecified action by Kamio	+50	Kamio raises the class's Class Points by 50, improving morale. 60
Later first-year period	Over 300	The class has climbed above 300 Class Points but still owes Ryuen several million Private Points. 102
After Ike's expulsion incident	0	Its accumulated Class Points are wiped out; membership falls from 40 to 39. 126
Sports Festival aftermath	0	Class D finishes with 0 Class Points. 150
Subsequent camp examination	+137	Class D gains 137 Class Points. 205
Joint examination	+360	Class D wins by a large margin and earns 360 Class Points. 278
Later special examination	0	The class deliberately sacrifices its standing for Private Points, returning its Class Points to zero. 303

History

Early Term

Class D enters the school without understanding that its treatment depends on its behavior and Class Points. Hirata Yosuke attempts to unite the class through introductions, while Kushida Kikyo seeks to become friends with every classmate. 2

When the class's points reach zero, its lack of unity becomes apparent. Hirata tries to calm the students, but they struggle to accept their status. 19 20

Kamio anonymously pressures the upper classes to provide aid, arguing that financially desperate Class D students could become a problem. Class A ultimately delivers 800,000 Private Points to Class D. 27 29

Conflicts with Class C

Yamauchi Haruki deliberately injures Ishizaki Daichi in an attempt to extort Private Points from Class C. Class C agrees to pay 100,000 Private Points as a private settlement, but Ryuen uses the incident to create grounds for future retaliation against Class D. 26

A later assault case involving Sudo Ken leaves Class D vulnerable to a major Class Point penalty. The dispute is settled through a certified agreement requiring Class D to pay Class C five million yen in installments. 50 65

Uninhabited Island Exam

The island exam exposes Class D's leadership problems. Its students argue over supplies, toilets, and whether to spend the class's limited points, while Hirata struggles to impose a decision. 74 75

Kamio independently gathers intelligence on Class C's leader, identifying Totsuka Yahiko through his Key Card. He provides the information to Hirata and Kushida, giving Class D a potential means to damage Class C's score. 76 77

Kamio's Departure and the Sports Festival

Kamio arranges to transfer to Class C after accumulating sufficient Private Points. He intends to cooperate with Ryuen and later declares that he will crush Class D rather than help it rise. 89 100

His transfer becomes public at the Sports Festival. Class C uses leaked information about Class D's participation roster to create unfavorable matchups, while Kamio's unexpected speed overwhelms Class D's plans. 130 143

Kamio wins the first-year 4×100-meter relay and is named the first-year Most Outstanding Player. Class D remains at 0 Class Points after the festival. 150

Dependence on Class C

Facing expulsion risks, Class D obtains a proposed loan of 12 million Private Points from Kamio. He offers the money in exchange for an unspecified favor, then demands that Class D surrender to him completely. 217 218 219

Kushida becomes Kamio's paid intermediary within the class. He sends her 50,000 Private Points and has their agreement notarized, using her to direct Class D during later exams. 220 221

During the Command Tower special exam, Class D is contractually bound to follow Kamio's instructions. Ayanokoji Kiyonaka becomes its Command Tower by default, as appointing another student could expose that student to expulsion. 229

Class C subsequently targets and eliminates Class D from the competition, then permits Class D to forfeit a basketball event as part of their alliance. 238

Class Composition and Dynamics

• Hirata Yosuke serves as the class's most visible stabilizing figure. He is well-connected and repeatedly attempts to restrain classmates, but his conciliatory approach cannot consistently control them. 2 26 74
• Kushida Kikyo is highly popular and influential among classmates, but initially avoids openly taking leadership roles to protect her image. 2 74
• Horikita Suzune pursues Class A promotion and repeatedly tries to organize the class around that objective. 24 217
• Yukimura Teruhiko is academically strong but initially reacts bitterly to his Class D placement. 20
• Sudo Ken, Ike Kanji, and Yamauchi Haruki contribute to the class's unstable reputation through conflicts, poor judgment, and disciplinary problems. 7 26 126
• The class loses two low-performing students, Ike and Yamauchi, over its first year; their removal leaves Class D with fewer students but improves its average academic profile. 126 256

Relationships

• Chabashira Sae — Homeroom teacher. She explains the Class Point system, mediates Class D's disputes, and frequently criticizes its students' conduct. 19 26
• Kamio Tatsuya — Former Class D student who transfers to Class C. He later uses loans, contracts, and Kushida's cooperation to exert control over Class D. 130 219 221
• Hirata Yosuke — Informal class core figure and mediator; he repeatedly attempts to preserve order and protect classmates. 2 74
• Horikita Suzune — Class D student pursuing promotion to Class A; she negotiates with Kamio when the class faces expulsion risks. 24 217 218
• Kushida Kikyo — Popular student and Kamio's informant. She receives living expenses from him and later agrees to guide Class D for Private Points. 220 276
• Ayanokoji Kiyonaka — Appointed Class D's Command Tower under its contract with Kamio and Class C. 229
• Class C — Primary rival and later controlling ally. Class D incurs debts to Class C through settlements, while Kamio and Ryuen use Class D as a strategic asset. 65 227
• Ryuen Kakeru — Class C's leader. He exploits Class D's conflicts, negotiates settlements against it, and cooperates with Kamio after the latter's transfer. 26 89

Trivia

• Class D is initially treated as the school’s weakest class, yet it contains several students with exceptional individual talents, including Sudo's athleticism, Yukimura's academics, Kushida's social ability, and Ayanokoji's strategic value. 241
• Class D's inability to maintain unity is repeatedly contrasted with Class A, Class B, and Class C, each of which has a clearer central leader during the early school year. 74
• Sakura Airi voluntarily leaves the school after refusing to use Private Points for aid, further reducing Class D's membership. 303