Hoshino

Biodata

Feature	Details
Name	Hoshino Hoshiya (星野) 3
Alias(es)	Hoshino
Gender	Male
Affiliation	Class 1-D; Advanced Nurturing High School Student Council 3 31
Occupation/Role	First-year student; Student Council Secretary 3 30 31
First Appearance	Chapter 1

Background

Hoshino comes from an ordinary family; his parents work for a small company, and he has no siblings. He enrolled at Advanced Nurturing High School on a whim after seeing its advertised employment rate and the opportunity to receive spending money. 1

Initially detached from Class 1-D’s social circles, he spent lessons sketching, reading, or sleeping rather than listening to lectures. He considers self-study more efficient and finds landscapes more compelling subjects than people. 1 2

Although he prefers to stay uninvolved, Hoshino takes precautions around people he considers suspicious. This leads him to approach Ayanokoji directly, observe the other classes, and investigate the school’s meritocratic structure. 3 5 6 11

Personality

Hoshino is lethargic, easily bored, and reluctant to take on work without a clear personal benefit. He is uncomfortable with attention, social pressure, and the school’s hierarchical system, which he sees as treating students as tools for society rather than people. 1 29 32 49

Despite his low motivation, he is observant and calculating. He studies people’s behavior, recognizes hidden tensions within classes, and uses provocation or negotiation to obtain information. He can act frivolous or fearful to conceal his intentions, though confrontations with Ryuen’s group genuinely make him nervous. 11 12 24

Hoshino has a pragmatic moral streak. He intervenes when Kaneda is bullied and returns Sakura’s fallen camera, but he also considers how evidence and conflicts can advance his own interests. 13 41 42

Abilities & Skills

Observation and Analysis

Hoshino habitually watches people, class dynamics, and institutional rules before acting.

• Identified Class B’s orderly leadership and Class C’s coercive atmosphere while scouting potential targets. 11
• Suspected Ryuen’s influence over class-point changes and reassessed him as a serious threat. 26
• Recognized Ayanokoji’s controlled test scores and unusual detachment from his classmates. 14
• Deduced a likely suspect in an electronics-store investigation and accepted responsibility if the investigation proved him wrong. 47

Strategic Manipulation

Hoshino uses private points, information, and timing as leverage.

• Challenged Sakayanagi through a point-guessing contest, ultimately winning 500,000 private points. 9 15
• Recorded Ryuen bullying Kaneda and obtained 500,000 private points in exchange for deleting the footage. 13
• Required video and written documentation before transferring 300,000 points under Chabashira’s arrangement to save Sudo from expulsion. 23
• Delayed confronting Ryuen over evidence from the Sudo incident so that the information would retain greater strategic value. 41 42
• Negotiated a contract with Ryuen after revealing recorded evidence of Class C’s manipulation. 44

Investigation and Evidence Handling

Hoshino is willing to gather evidence personally when official information is insufficient.

• Installed a surveillance camera in a secluded, camera-free area of the club building after noticing Ryuen and Ishizaki acting suspiciously. 37
• Retrieved camera footage relevant to the Sudo incident and used it during his assessment of Class C’s involvement. 40
• Presided over the initial Student Council deliberation between Class D and Class C, delaying the final ruling when the available evidence remained contested. 43

Administration and Entrepreneurship

Hoshino can organize projects, though he struggles with unfamiliar technology and dislikes the workload.

• Developed a second-hand trading website concept with Sotomura’s assistance. 18 19
• Obtained Student Council approval to use the electronic bulletin board for second-hand-goods promotion. 19
• Handles Student Council documents, budget reviews, club surveys, and reports. 31 35 50
• Was assigned to lead the Sudo-incident deliberation as practical training for his Student Council role. 41

Drawing

Hoshino sketches during class and in his free time.

• Draws illustrations, animations, and stick-figure martial-arts sequences in his sketchbook. 1
• Prefers line art and scenery-based drawings, especially landscapes and empty classrooms. 2

Equipment / Items

• Sketchbook — Used for his drawings and imagined martial-arts scenes. 1
• Student ID — Used to monitor his private-point balance and observe the school’s limited student information. 3 4
• Surveillance camera — Carried and installed to monitor Ryuen’s activities in the club building. 37

Relationships

• Ayanokoji Kiyotaka — Classmate whom Hoshino initially approaches out of caution. Hoshino finds Ayanokoji unnervingly unreadable, yet the two discuss class promotion, Horikita, and each other’s motives. 5 6 12 34
• Kushida Kikyo — Classmate whose friendly persona Hoshino immediately finds artificial. She repeatedly attempts to involve him in social and class matters, including the Sudo-incident investigation. 1 4 41
• Sakayanagi Arisu — Strategic rival from Class A. Hoshino loses a chess game to her but later defeats her in their point-guessing contest; she subsequently tries to recruit him to Class A. 7 15
• Ryuen Kakeru — Class C adversary and frequent target of Hoshino’s schemes. Hoshino provokes him, blackmails him with footage of Kaneda’s bullying, and later negotiates a contract using evidence of Class C’s manipulation. 12 13 44
• Hideo Sotomura (“Professor”) — Partner in Hoshino’s second-hand trading project. Sotomura helps him manage promotion accounts and offers practical advice. 18 19
• Manabu Horikita — Student Council President who recruits Hoshino as secretary and entrusts him with administrative work and the Sudo-incident deliberation. 30 31 41
• Suzune Horikita — Classmate whom Hoshino encourages to speak directly with her brother. He recognizes her emerging leadership potential despite her insecurity. 23 33
• Chabashira Sae — Homeroom teacher with whom Hoshino makes cautious, documented agreements and attempts to extract information about school rules and Class D’s promotion. 23 24 42
• Ichinose Honami — Class B student who seeks Hoshino’s help during the Sudo incident and later thanks him for his actions against Ryuen. 38 39 49
• Shiina Hiyori — Class C student Hoshino meets in the library. He shares information about Ryuen’s treatment of Kaneda, while Shiina offers her perspective on Ryuen’s leadership. 26

Story Role / Major Arcs

Competition with Sakayanagi

Hoshino encounters Sakayanagi in the library’s fifth-floor reading area and loses a chess match against her. He later designs a point-guessing contest intended to limit the advantage of raw academic, athletic, or group-based strength, then wins 500,000 private points. 7 9 15

Private-Point Schemes

Faced with Class D’s low point income, Hoshino searches for ways to earn money without gambling. His efforts include blackmailing Ryuen with evidence of Kaneda’s bullying and launching a second-hand trading platform with Sotomura. 4 13 18 19

Student Council Secretary

Manabu Horikita recruits Hoshino into the Student Council, offering a monthly salary of 100,000 private points. The appointment attracts rumors that he defeated major class leaders to earn the role, though Hoshino remains embarrassed by the attention and wary of the workload. 30 32 33

Sudo Incident

After footage from his hidden camera becomes relevant to Sudo’s assault case, Hoshino is ordered to lead the Student Council deliberation. He tries to remain impartial while balancing Class D’s interests, his own evidence against Ryuen, and the opportunity to weaken Class C. 40 41 42 43

Notable Quotes

“Yeah—I'll pass.” 34

“I don't want to work! I don't want to work...” 49