Kohei Katsuragi

Biodata

Feature	Value
Name	Kohei Katsuragi (葛城康平)
Alias(es)	“Little Fist Stone”
Gender	Male
Affiliation	Class 1-A; Katsuragi faction
Occupation/Role	Student; aspiring class leader and Student Council member
First Appearance	Chapter 3

Background / History

Kohei Katsuragi enters Class 1-A as a bald student seated beside Seishiki Otonashi. He initially warns Otonashi to pay attention to the teacher’s lecture, establishing himself as a diligent and responsible classmate 3.

Following the professor’s departure, Katsuragi takes the podium and proposes class self-introductions so that everyone can get acquainted and grow together 4. He becomes an early candidate for Class 1-A’s leadership, with many boys supporting him because of his proper conduct and sense of responsibility 15 42.

Katsuragi studies diligently in pursuit of becoming class leader and “an excellent person.” His central motivation is his younger sister, for whom he wants to set a positive example 19. He applies to the Student Council and passes its second recruitment round after Otonashi uses his prize from defeating Manabu Horikita to request Katsuragi’s recruitment 23 24.

As Class 1-A begins dividing between Katsuragi and Arisu Sakayanagi’s competing leadership camps, Katsuragi seeks to unite the class rather than let factional conflict define their school life 24 46. During a fishing trip and dinner with Otonashi, he confronts how his devotion to his sister and classmates has made him hesitant to prioritize his own desires 46.

Katsuragi later reveals that his younger sister is frail and sickly. With both parents and grandparents deceased, she is cared for by relatives, while Katsuragi sees himself as an eldest brother who must fulfill a father-like role 47.

Appearance

Katsuragi is a bald male student whose appearance led classmates in middle school to compare him to the Pokémon Geodude, inspiring Otonashi’s nickname for him 4 13.

• Bald head, described by Otonashi as a “little-gravel-bald-head” 4
• Compared to Geodude / “Little Fist Stone” by others since middle school 13 27
• Possesses a resolute expression when speaking seriously about his ideals 46

Personality

Katsuragi is serious, hardworking, and strongly duty-oriented. He values academic achievement, believing that credentials affect one’s future status, and he treats studying as necessary preparation for the class-leadership role he seeks 19. He disapproves of idle chatter and believes students should prioritize their studies 30.

He is considerate toward others, sometimes to the point of indecision. Otonashi identifies Katsuragi’s tendency to constantly account for others’ feelings as both a leadership strength and a weakness, because it causes him to neglect his own wishes 46 47.

Despite his formal demeanor, Katsuragi develops a patient, weary familiarity with Otonashi’s eccentric behavior. He worries when Otonashi overexerts himself, tolerates his teasing with exasperation, and gradually joins him in gaming and fishing 13 20 27 45.

Abilities & Skills

Leadership and Class Organization

Katsuragi naturally takes responsibility for group cohesion and discipline.

• Proposes Class 1-A’s self-introductions to help classmates know one another 4
• Aims to become class leader and unite Class 1-A 19 46
• Holds substantial support among the class’s male students 42
• Applies to the Student Council and passes the second recruitment round 24
• His concern for every classmate can make him overthink and hesitate 46 47

Academic Diligence

Katsuragi consistently studies and treats academic performance as essential to his future.

• Regularly reviews course material after school 19
• Studies independently during breaks and before class 13 24
• Views academic credentials as important for future status 19

Domestic Skills

Katsuragi is accustomed to managing household responsibilities.

• Cooks for himself and prepares fish and rice for Otonashi 46
• Keeps cola stocked after Otonashi previously complained about its absence 46
• States that he is used to caring for his younger sister 46

Fishing

Katsuragi discovers an unexpected aptitude for fishing.

• Learns basic fishing technique from Otonashi 46
• Catches six respectable fish during his first afternoon fishing, while Otonashi catches none 46
• Finds fishing relaxing and enjoyable 46

Relationships

• Seishiki Otonashi / Star Color — Classmate and gaming companion. Otonashi successfully pushes for Katsuragi’s Student Council recruitment, while Katsuragi provides him practical concern and restraint 20 23 27 45.
• Katsuragi’s younger sister — Frail, sickly younger sister and Katsuragi’s foremost motivation. He wants to become someone worthy of setting an example for her 13 19 46 47.
• Arisu Sakayanagi — Rival leadership candidate in Class 1-A. Their competing factions become the basis of the class’s growing political divide 15 24 42 46.
• Yahiko Totsuka — Supporter who closely follows Katsuragi and repeatedly speaks about him 24.
• Manabu Horikita — Student Council president who is asked to recruit Katsuragi as Otonashi’s reward for winning their game 23.

Story Role / Major Arcs

Early Class 1-A Leadership

Katsuragi initiates the class’s self-introductions and emerges as its most visible early leader. His responsible behavior and desire for collective improvement establish the foundation of his support base 4 15.

Student Council Recruitment

Otonashi requests Katsuragi’s Student Council recruitment after defeating Horikita in Free Rock-Paper-Scissors. Katsuragi subsequently passes the second stage of recruitment 23 24.

Friendship with Otonashi

Katsuragi initially resists Otonashi’s attempts to draw him into Pokémon, but eventually accepts and spends the weekend playing Pokémon Platinum with him 13 27. Their friendship later extends to an improvised campus-fishing attempt and a more successful fishing outing 45 46.

Class 1-A Factional Strife

Katsuragi becomes one side of Class 1-A’s leadership struggle against Sakayanagi’s faction. Rather than seeking power for its own sake, he wants to prevent the class from splitting and give everyone a meaningful school life 24 42 46.

Awakening

While fishing and sharing dinner with Otonashi, Katsuragi admits his wish to unite the class. Otonashi challenges him to act according to his own ideals rather than solely out of obligation to his sister or classmates, helping Katsuragi recognize that these ideals are also his personal desire 46 47.

Trivia

• Otonashi calls Katsuragi “Little Fist Stone” because of his resemblance to Geodude; Katsuragi dislikes the nickname 13 27.
• Katsuragi initially claims he has no time for Pokémon, but later agrees to try it and receives Otonashi’s handwritten strategy notes 13 27.
• He reacts angrily when Otonashi jokingly suggests that he is impotent during a discussion about the swimming class 30.
• Otonashi describes Katsuragi as having an “old father” atmosphere because of his weary patience with Otonashi’s antics 27 42.