Katsuragi

Biodata

Feature	Information
Name	Katsuragi Kohei (葛城)
Alias(es)	“Big Brother Katsuragi”
Gender	Male
Affiliation	Advanced Nurturing High School; Class A
Occupation/Role	First-year student; Class A Vice Leader
First Appearance	Chapter 2

Background / History

Katsuragi entered Advanced Nurturing High School as a member of Class A. From the first day, he stood out as a composed and rational presence whose classmates listened to him. He questioned Mashima Tomoya closely about the school’s points system, including whether private points could be used outside the school, showing an early concern with the rules governing student life 2.

Before the entrance ceremony, Katsuragi proposed that Class A introduce themselves efficiently. He introduced himself as someone seeking a smooth graduation and a good job, while urging the class to work hard together 3.

When Class A began investigating the hidden standards behind class points, Katsuragi convened a class meeting and reported that upperclassmen would not disclose the rules. He concluded that class points likely measured each class’s strength and advocated regulating daily conduct to avoid deductions 9. This practical approach placed him in a leadership rivalry with Sakayanagi Arisu, whose strategy emphasized more proactive methods.

Uesugi Hara later informed Katsuragi about future class competitions and expulsion exams, advising him to abandon a direct struggle for leadership and instead become Sakayanagi’s deputy. Though reluctant to trust Sakayanagi or surrender his position, Katsuragi accepted the argument that Class A needed both stable defense and aggressive strategy 25.

At the May leadership meeting, Katsuragi formally renounced his claim to become class leader and volunteered to serve as Sakayanagi’s deputy. Sakayanagi appointed him Class A’s Vice Leader, assigning him responsibility for internal coordination and rule maintenance while she handled strategy and external competition 29.

Appearance

Katsuragi is a bald student who wears the school uniform neatly. His restrained bearing, glasses, and sharp gaze reinforce his serious, dependable image 2 9 57.

• Crisp, orderly school uniform 2
• Bald head 57
• Wears glasses 9
• Usually carries and consults a notebook during class discussions 8 9 28

Personality

Katsuragi is mature, steady, and strongly duty-oriented. He prioritizes Class A’s long-term stability over personal recognition, repeatedly directing attention toward rule compliance, class-point preservation, and preparations for future exams 9 27 31.

He is also pragmatic enough to compromise when necessary. Although he had misgivings about Sakayanagi and found it difficult to give up his leadership bid, he accepted a subordinate position when convinced that internal division would endanger the class 25 29.

His leadership style is structured and defensive rather than flashy. Katsuragi sees himself as the “shield” of Class A: the person responsible for securing its foundation while Sakayanagi acts as its “spear” in external competition 29.

Abilities & Skills

Leadership and Class Administration

Katsuragi can organize large groups into clear, actionable systems.

• Initiated Class A’s first round of student introductions and kept the process brief and orderly 3.
• Convened class meetings to address point fluctuations, leadership, and the class’s future 8 28 29.
• Established study groups based on complementary academic strengths and weaknesses 31.
• Helped create a monthly class fund, with each student contributing 30,000 private points 31.

Rule Analysis and Risk Management

Katsuragi focuses on identifying risks within the school’s opaque systems and minimizing avoidable losses.

• Investigated the strength-evaluation rules through upperclassmen, despite receiving no useful answers 9.
• Identified class points as the likely core measure of class strength 9.
• Advocated regulating attendance, assignments, and daily behavior to prevent class-point deductions 9.
• His management contributed to Class A receiving significantly fewer penalties during its first monthly assessment 28.

Academic Coordination

Katsuragi treats academic performance as a collective responsibility rather than an individual matter.

• Warned that the mini-exam could affect a more important future examination and persuaded the class to take it seriously 27.
• Led the organization of regular study groups ahead of the midterms 31.
• Distributed past exam papers to Class A while instructing students not to leak them to other classes 42.
• Class A ultimately achieved a 100% pass rate on the midterms 51.

Equipment / Items

• Notebook — Used to record information, organize meetings, and review school rules 8 9 28.
• School terminal — Used for class communications and point-related matters 28.

Relationships

• Sakayanagi Arisu — Class A’s leader and Katsuragi’s former leadership rival. They resolve their factional conflict by dividing responsibilities: Sakayanagi leads strategy and external competition, while Katsuragi manages internal affairs and discipline 9 29.
• Uesugi Hara — Advisor and later neutral coordinator within Class A’s leadership structure. Hara’s intelligence about future exams helps convince Katsuragi to accept the Vice Leader role 25 29.
• Totsuka Yahiko — Loyal supporter who nominated Katsuragi for class leader and continues to follow his decisions even after Katsuragi steps down 9 29.
• Mashima Tomoya — Class A’s homeroom teacher, who recognizes the class’s unity and is impressed by its division of labor 28 31.
• Morishita Ran — Class A’s treasurer under the class-fund arrangement organized by Katsuragi and the other leadership figures 31.
• Hashimoto Masayoshi — A Sakayanagi supporter whose confrontation with Totsuka reflects the former split between the Sakayanagi and Katsuragi factions 29.

Story Role / Major Arcs

Class A’s Initial Rule Investigation

Katsuragi becomes one of Class A’s earliest organizers after raising questions about private points and proposing introductions. He later leads the class in examining the school’s hidden evaluation rules and establishes point preservation as its immediate priority 2 3 9.

Leadership Rivalry and Class A’s Reorganization

Katsuragi’s stable, defensive leadership approach clashes with Sakayanagi’s proactive strategy. Rather than allow the rivalry to fracture Class A, he voluntarily gives up his claim to leadership and becomes Vice Leader, creating a balanced leadership structure alongside Sakayanagi and Uesugi 25 29.

Midterm Preparation and Class Fund

As Vice Leader, Katsuragi organizes Class A’s study groups and helps establish a monthly emergency fund. The class’s cooperation and academic preparation result in every Class A student passing the midterms 31 51.

Past Exam Paper Debate

Katsuragi supports distributing obtained past exam papers to Class A, arguing that the class should use every available opportunity to gain an advantage. His stance contrasts with Sakayanagi’s objection that Class A should not need such material 42.

Trivia

• Katsuragi possesses “wisdom beyond his eighteen years” and is described as having the maturity of a thirty-eight-year-old 2.
• He initially aimed simply to graduate smoothly and secure a good job 3.
• His preferred class role is explicitly compared to a shield, complementing Sakayanagi’s role as a spear 29.