Class D

Biodata

Feature	Value
Name	Class D (D班)
Alias(es)	“Defective” class; the school’s “dumping ground” (derogatory) 1 41
Affiliation	Advanced Nurturing High School
Occupation/Role	Student class; initially the school’s lowest-designated class
Status	Active 49
First Appearance	Chapter 1

Power Progression

Stage / Realm / Level	Chapter	Notes
Class D placement	1	Introduced as an unruly class widely regarded as a repository for “defective” students.
Uninhabited Island provisional gain	18	Received +15 points after Class C incurred rule-violation penalties.
Uninhabited Island first place	20	Finished the exam with 225 points, securing first place.
Cruise-ship special exam reward	26	Earned +500 class points after Ayanokoji exposed the connection among traitors from Classes A, B, and C.
Sports Festival result	47	Finished fourth and received a significant point bonus; the exact amount was not stated.

Background / History

Class D begins as a noisy, disorganized group whose students disregard Chabashira Sae’s authority and immediately treat the school’s monthly private-point allowance as spending money. Its early lack of discipline and collective responsibility leads to every student’s private-point balance being reset to zero, creating panic and internal blame. 1 3

The points crisis becomes the class’s first turning point. Horikita Suzune presents rule-based ways to recover, including special tasks and point exemptions, earning the class’s acceptance as a visible leader. Ayanokoji Kiyotaka supplies much of the reasoning while remaining inconspicuous, and Natsume Yu quietly observes the shift in Class D’s structure. 7

During the Uninhabited Island Special Exam, resource shortages, tent disputes, and Class C’s provocations expose the class’s internal weaknesses. Class D ultimately turns an abandoned camp into a trap for Ryuen Kakeru’s group, causing Class C to incur penalties. The class finishes first with 225 points. 11 14 18 20

On the cruise-ship special exam, Class D is represented by Ayanokoji, who uses reverse deduction to expose Sakayanagi Arisu’s traitor scheme. The resulting 500-point reward turns the victory into a major public success for the class. 26

At the Sports Festival, Natsume directs Class D to conserve energy, avoid open conflict, and deliberately lose selected events. The plan initially damages morale but lures Class C into overconfidence and creates favorable ties with Class B. Ayanokoji’s final relay victory gives Class D its strongest public display of athletic ability, though it finishes fourth overall. 41 42 46 47

Class Culture and Dynamics

Class D is initially a collection of competing cliques, liabilities, and isolated high-achievers rather than a unified team. Hirata Yosuke maintains superficial harmony, while students such as Sudo Ken, Ike Kanji, and Yamauchi Haruki frequently intensify conflict. 1 9

Its later successes rely on a layered command structure: Horikita serves as the visible leader, Ayanokoji acts at critical moments, and Natsume directs broader strategies while preserving the image of an ordinary, uninvolved student. 9 20 41

Notable Members and Functions

Member	Role within Class D
Natsume Yu	Behind-the-scenes strategist who seeks to control the class while avoiding public attention. 1 9 41
Ayanokoji Kiyotaka	Critical executor and public “ace”; represents the class in decisive exams and draws outside scrutiny away from Natsume. 26 46 48
Horikita Suzune	Visible leader and spokesperson who organizes the class around rule-based plans. 7 9
Hirata Yosuke	Surface leader who initially maintains the class’s fragile peace. 1
Kushida Kikyo	Social core turned coerced intelligence operative, gathering classmates’ secrets and monitoring rival leaders. 20 24 28
Sakura Airi	Natsume’s increasingly devoted observer and scout; later monitors Class D, particularly Kushida. 38 39
Sudo Ken	Athletic asset whose pride and physical ability are strategically used during the Sports Festival. 41 42

Operational Assets

Rule Exploitation and Exam Strategy

Class D’s major wins stem from identifying technical rules, special-task systems, leadership procedures, and penalty conditions that stronger opponents overlook.

• Horikita’s points-crisis solution uses special tasks and point exemptions to prevent further collapse. 7
• The class counters Ryuen’s report by having already filed a leader-change application and preserved records of Horikita’s participation. 16
• Its abandoned island camp causes Class C to illegally occupy a pre-registered stronghold and lose 35 points. 18
• Ayanokoji’s reverse deduction exposes Class A’s evidence as the flaw in Sakayanagi’s own scheme. 26

Intelligence Network

Natsume turns Class D’s internal social connections into a source of leverage against both classmates and rival classes.

• Kushida compiles information on Class D students’ weaknesses, secrets, social circles, and emotional triggers. 20 24 29
• Her assignments also include tracking Sakayanagi Arisu, Ichinose Honami, and Ryuen Kakeru. 20
• Sakura later observes class interactions and surveils Kushida’s behavior for Natsume. 38

Deliberate Losses and Misdirection

During the Sports Festival, Class D accepts visible defeats to conceal its larger plan and manipulate rival expectations.

• Natsume orders the class to conserve energy, avoid conflict, and exert effort only in decisive events. 41
• Sudo intentionally loses the 100-meter race to Ishizaki, encouraging Class C’s complacency. 42
• Controlled losses also create opportunities to assist Class B and improve inter-class relations. 42 43
• Ayanokoji’s relay performance becomes the public face of Class D’s resurgence, diverting attention from Natsume’s role. 46 48

Inter-class Relations

• Class A — Opposed Class D during the cruise-ship special exam; Ayanokoji dismantles Sakayanagi’s plan, earning Class D 500 points. Sakayanagi later investigates the class’s hidden strategist. 26 49
• Class B — Initially observed as a potential target by Natsume, but relations improve after Sports Festival cooperation. Natsume and Ayanokoji begin forming an alliance with Class B. 10 42 49
• Class C — Primary hostile rival under Ryuen Kakeru. Its harassment on the island and aggressive Sports Festival tactics repeatedly provoke Class D, but its actions are turned against it through traps and misdirection. 13 18 43 46
• Chabashira Sae — Homeroom teacher whose explanation of Class D’s poor performance and point deductions triggers the class’s first major crisis. 3

Major Arcs

Private Points Crisis

Class D loses all monthly private points after performing below the school’s expectations. The crisis forces students to recognize that their behavior affects collective outcomes and establishes Horikita as a viable public leader. 3 7

Uninhabited Island Special Exam

The class survives resource disputes and Class C’s harassment, then uses false intelligence, a relocated camp, and traps to punish Ryuen’s assault. The final result is first place with 225 points. 11 14 18 20

Cruise-Ship Special Exam

Ayanokoji publicly represents Class D and overturns Class A’s traitor trap through reverse deduction. The class gains 500 points and its reputation changes from an underestimated group to a serious competitor. 26 27

Sports Festival

Class D follows Natsume’s unpopular strategy of strategic losses before revealing its coordinated relay plan. Ayanokoji defeats Ryuen and Class A’s ace in the final race, while Class D finishes fourth overall. 41 45 46 47

Trivia

• Class D’s first private-point allowance is 100,000 points per student, but the entire class loses its balances after one month of poor performance. 1 3
• Natsume initially views Class D as the ideal place to hide, later treating its rise to Class A as the first stage of his larger plan. 1 9
• Ayanokoji’s growing public reputation after the Sports Festival is deliberately useful to Natsume, who uses him as a shield against outside investigation. 48