Shinjo

Biodata

Feature	Value
Name	Katsuya Shinjo (真条)
Alias(es)	Shinjo; president of the Odd Jobs Agency 32
Gender	Male
Affiliation	Class 1-D; Odd Jobs Agency; contracted with the Student Council 2 22 43
Occupation/Role	Student; founder and president of the Odd Jobs Agency 20 23
First Appearance	Chapter 1: “Enrollment Day” 1

Background / History

Shinjo enters the school hoping for three peaceful years, but immediately recognizes Rokusuke Koenji on the enrollment bus and anticipates that his plans may be disrupted. He is assigned to Class D, where he quickly questions why every student received 100,000 private points despite their differing entrance-exam results. 1 2

During his self-introduction, he identifies music, novels, and sweets as his principal interests. His attachment to sweets is strong enough that Koenji successfully uses a monthly limited-edition Branch Cake to secure Shinjo’s attention and negotiate a favor. 3 6

Shinjo tells Kei Karuizawa that he was bullied around two years before enrolling. He believes that true strength comes from within rather than gender, physique, or outward capability. 10

His family is described as a “swimming dynasty,” explaining his unusually high performance in the school’s swimming competition. Matsushita also recognizes him through their fathers: her father has socialized with Shinjo’s father, who runs an agency. 9 23

Appearance

Shinjo has a relatively slight frame but carries considerable physical strength. During swimming class, Ayanokoji notices a large scar on his chest and suspects it may have been caused by an explosion. 8

• Narrowly matches Koenji’s swimming time despite their significant difference in build. 9
• Has a conspicuous chest scar. 8

Personality

Shinjo is observant, calculating, and strongly motivated by personal benefit. He analyzes the school’s point system early, recognizes the implications of Class D’s rank, and consistently treats information, services, and favors as negotiable assets. 2 6 13

Despite his commercial outlook, he is capable of patience and protection. He intervenes when Kei is bullied, carefully builds Sakura’s trust through non-threatening communication, and rescues Sakura from her kidnapper. 17 46 48

He is also highly judgmental and imaginative, particularly toward Ayanokoji. Shinjo repeatedly misreads Ayanokoji’s detached behavior as evidence of hidden, suspicious motives before gradually reconsidering that assumption. 3 9 32

Abilities & Skills

Physical Ability

Shinjo possesses exceptional athletic ability despite not presenting himself as a physical specialist.

• Nearly defeats Koenji in a swimming race; the result is decided by only a negligible margin. 9
• Attributes his swimming ability to his family background. 9
• Delivers a powerful whip kick that knocks Sakura’s kidnapper away during her rescue. 48
• Maintains composure when confronted by Class C students and Ryuen’s group. 17 18

Negotiation and Commercial Strategy

Shinjo routinely turns information, access, and favors into profitable arrangements.

• Bargains Hayato Kojima down from 20,000 points to a proposed 5,000-point deal while securing agency-related privileges. 26
• Manipulates Hayato into accepting a commission arrangement, then acquires the midterm-answer materials without purchasing them. 27
• Sells exam answers to Class C for 12,000 points after Hiyori Shiina negotiates the price down. 28 29
• Sells the same exam information to Honami Ichinose for 10,000 points while using the transaction to build ties with Class B. 32

Strategic Analysis

Shinjo identifies hidden incentives and constructs plans around them.

• Infers that private-point allocations are tied to student performance and that Class D’s designation has serious long-term consequences. 5 6
• Understands that private points may increase in value over time and keeps this knowledge largely concealed. 13
• Uses the midterm answer key to organize Class D’s exam preparation and prevent failures. 30 31 33
• Recognizes the importance of evidence when facing Ryuen’s staged accusation against Kei and later applies the same standard during Sudo’s disciplinary hearing. 18 42

Investigation

As the Odd Jobs Agency’s president, Shinjo conducts inquiries for clients and the Student Council.

• Investigates harassment connected to the school’s digital specialty store. 44 45
• Adapts his approach to Sakura’s social anxiety by using simple questions and written notes rather than pressuring her. 46
• Identifies Sakura’s stalker from suspect portraits and accompanies her to retrieve her camera. 47
• Reports the underlying circumstances of the anonymous request to Manabu Horikita while preserving Sakura’s secret. 49

Odd Jobs Agency

Shinjo establishes and leads the Odd Jobs Agency, a paid-service organization that accepts commissions from students and the Student Council. 20 23

• The agency operates under four stated principles, though the specific rules are not detailed. 22 43
• Shinjo states that the effort devoted to a request depends on the client’s ability to pay. 33
• Manabu Horikita promotes the agency and supports its funding in exchange for one unconditional request from Shinjo each week. 22
• The school begins monitoring the agency after its activities attract attention. 43
• Its known work includes distributing exam information, investigating the digital-store harassment case, and handling Student Council commissions. 27 45 49

Equipment / Items

• Mobile phone — Used to record potential evidence, including the confrontation involving Kei and the incident between Manabu and Suzune Horikita. 17 21
• Notepad — Used to keep a detailed list of demands during his negotiation with Manabu Horikita. 22
• Agency files and suspect portraits — Used during the investigation into Sakura’s harasser. 47
• Branch Cake — A monthly limited-edition sweet that Koenji uses as leverage against Shinjo. 6

Relationships

• Kei Karuizawa — Friend and fake girlfriend. Shinjo learns of her bullying-related fears, protects her from Class C harassment, tutors her, and publicly acknowledges their supposed relationship. 10 17 21 29
• Kiyotaka Ayanokoji — Classmate and wary counterpart. Shinjo initially considers him dangerous and repeatedly misinterprets his behavior, while both recognize unusual ability in the other. 3 9 32
• Rokusuke Koenji — Longtime acquaintance, business counterpart, and swimming rival. Koenji narrowly defeats Shinjo in their race and uses Branch Cake to bargain with him. 3 6 9
• Manabu Horikita — Student Council President and contractual partner. Shinjo blackmails him over the assault on Suzune, then accepts weekly unconditional commissions in return for agency promotion and funding. 21 22 43
• Suzune Horikita — Classmate who initially overestimates his willingness to help Sudo. Shinjo later clarifies that his assistance is transactional and limited. 43 44
• Ken Sudo — Classmate and casual friend. Shinjo helps save him from expulsion during the midterms but later stresses that their friendship is shallow and does not obligate extraordinary effort. 36 37 43
• Kakeru Ryuen — Class C rival. Shinjo dismantles Ryuen’s accusation against Kei for lack of evidence and deliberately gives him Ayanokoji’s name instead of his own. 18
• Hiyori Shiina — Class C contact and fellow reader. She purchases exam answers from Shinjo after successfully negotiating a lower price. 25 28 29
• Sakura Airi — Client and protected classmate. Shinjo earns her trust, investigates her harassment, retrieves her camera, and rescues her from kidnapping. 46 47 48
• Akane Tachibana — Student Council Vice-President and reluctant investigative partner. She frequently criticizes Shinjo’s stinginess but assists with the digital-store inquiry. 43 45
• Honami Ichinose — Class B student and business contact. Shinjo sells her exam information and later attempts to recruit her away from the Student Council. 32 49

Story Role / Major Arcs

Class D Arrival and Private-Point Analysis

Shinjo enters Class D, monitors its social structure, and becomes one of the first students to seriously question the school’s private-point system. Koenji’s information later leads him to connect Class D’s rank with the students’ future prospects. 2 6

Kei’s Protector

After recognizing that Kei has experience with bullying, Shinjo forms a friendship with her. He later confronts the Class C girls targeting her, withstands Ryuen’s intimidation attempt, and adopts a fake relationship with her to provide protection. 10 17 18 21

Foundation of the Odd Jobs Agency

Shinjo secretly records Manabu’s violence toward Suzune and uses the evidence to force support for his proposed agency. Although Manabu accepts the arrangement, he binds Shinjo to weekly unconditional requests in return. 21 22 23

Midterm Answer Scheme

After obtaining authentic midterm answers from Hayato, Shinjo distributes them within Class D and sells them to Classes B and C. The scheme helps Class D avoid widespread exam failure, though Sudo’s failure to memorize the answers still creates an expulsion crisis. 27 29 31 33 34

Saving Sudo from Expulsion

Shinjo proposes using private points to purchase Sudo’s missing mark after Chabashira offers the option. Class D crowdsources 100,000 points and saves Sudo, earning Shinjo public gratitude despite his later admission that he acted because someone else covered the cost. 36 37 44

Digital Store Investigation

Assigned a vague Student Council commission, Shinjo investigates a suspicious digital-store employee. He gains Sakura’s confidence, exposes the employee as her obsessive fan, retrieves her camera, and rescues her after the fan kidnaps her. 44 45 46 47 48

Trivia

• Shinjo and Ayanokoji both initially want a quiet three-year school life, though Shinjo’s own actions repeatedly draw him into major conflicts. 1 32
• He falsely introduces himself to Ryuen as “Kiyotaka Ayanokoji,” causing Ryuen to direct his resentment toward Ayanokoji. 18
• Shinjo is second in an informal first-year “handsome ranking,” while Ayanokoji is sixth. 31
• He is notably susceptible to desserts, especially Branch Cake and pudding. 6 44