Horikita Suzune

Biodata

Feature	Value
Name	Horikita Suzune (堀北铃音) 3
Gender	Female 3
Affiliation	Class D 42
Occupation/Role	Student; pursues Class D's promotion to Class A 46
Residence	Room 1201 13
First Appearance	Chapter 3

Background / History

Suzune entered the school with no interest in friendships or ordinary social life. She had rejected attempts to approach her throughout elementary and middle school, intending to continue living independently for the next three years. Her sole priority was catching up to—and earning recognition from—her older brother, Horikita Manabu. 3

Her isolation is partly deliberate and partly tied to the “mask” she has worn for so long that she has begun to believe in it herself. Haruo challenges her to discard her brother’s shadow and find her own path, leaving her unsettled rather than immediately changed. 13 16

Appearance

Suzune is a cold-looking, long-haired beauty whose composed demeanor and sharp gaze make her difficult to approach. 3

• Long black hair; she ties it into a ponytail while cooking. 3 32
• Maintains refined, deliberate etiquette while eating. 8 17
• Usually presents a poker-faced or icy expression. 31
• Wore a face mask to class after Haruo’s permanent turtle drawing could not be removed. 32

Personality

Suzune is disciplined, analytical, blunt, and intensely self-reliant. She initially considers friendship unnecessary and views dependence on others as a weakness, believing that she can handle any problem alone. 3 13

Her drive is matched by a sharp competitive streak. She holds absolute confidence in her grades, is frustrated by defeat, and seeks to bring Class D to Class A through her own efforts rather than relying on Ayanokōji’s abilities. 31 46 47

Despite her harsh delivery and indifference toward most classmates, Suzune gradually becomes more receptive to others. She participates in meals and group activities, accepts advice about physical fitness, grows wary of Kushida’s hidden nature, and recognizes that she has begun trusting Haruo despite finding him unreliable. 21 29 39

Abilities & Skills

Deductive Reasoning

Suzune closely observes behavior and draws conclusions from small details.

• Suspected Haruo knew more about the school than he revealed after noticing his student notebook, lack of surprise during the briefing, and unusual familiarity with the point system. 5
• Correctly inferred that the availability of free ingredients suggested monthly point distributions were not fixed. 13
• Identified Haruo’s scheme to have Kushida join their lunch through his timing and phone use. 18
• Reassessed Kushida after witnessing her private outburst and learning that her public persona concealed resentment. 39

Academics and Self-Discipline

Suzune is a diligent student with strong confidence in her academic performance.

• Takes careful lecture notes and prioritizes study materials over leisure. 9 47
• Maintains a disciplined daily routine that includes morning runs. 24
• Pushed herself to attend class despite the embarrassment and anger caused by the turtle mark, protecting her perfect attendance record. 32
• Treats Class D’s poor point total as a problem to solve, documenting the class’s misconduct and questioning why she was assigned there. 42 44

Athletic Ability and Close-Quarters Fighting

Suzune is physically capable and does not hesitate to use force against Haruo or anyone who crosses her boundaries.

• Performed a shoulder throw on Haruo and later demonstrated a judo throw in the cafeteria. 16 49
• Uses hand chops, elbow strikes, knee strikes, wrestling holds, and compass stabs as retaliation for Haruo’s provocations. 8 30 32
• Slammed Yamauchi Haruki onto Ayanokōji’s desk after being manipulated into confronting him. 48
• States that she has mastered all swimming techniques. 29

Cooking and Household Skills

Suzune becomes involved in cooking largely through her arrangements with Haruo.

• Prepares bentos for Haruo under various agreements and wagers. 16 19 31
• Acquires kitchenware and ingredients after learning more about the school’s class system. 13
• Learns cooking through online tutorials and applies substantial effort despite being inexperienced. 36
• Helps prepare meals and serves homemade tiramisu during the group gathering in her room. 30

Equipment / Items

• Compass-filled pencil case — Keeps numerous compasses as improvised deterrents, particularly against Haruo’s behavior. 32
• Bookshelf — Contains works including Crime and Punishment, For Whom the Bell Tolls, and And Then There Were None. 32
• Philosophy books — Prefers reading material that she believes both passes time and expands knowledge. 17

Relationships

• Horikita Manabu — Her older brother and the person whose recognition she most wants. Suzune followed him to the school and initially defines her goals through surpassing or catching up to him. 3 9
• Kamigami Haruo — Classmate, frequent antagonist, and increasingly trusted companion. Suzune begins by investigating and distrusting him, but later shares meals, exercises, cooks, and works alongside him despite constant bickering. 5 21 29 39
• Ayanokōji Kiyotaka — Classmate and occasional companion. Suzune is skeptical of his conflict-avoidant behavior and intends to reach Class A without depending on his abilities. 9 21 46
• Kushida Kikyo — A classmate whose attempts at friendship Suzune initially rejects. After overhearing Kushida’s outburst, Suzune recognizes that Kushida’s public kindness does not reflect her private feelings. 10 39
• Ichinose Honami — A fellow student whom Suzune treats with blunt but thoughtful honesty. Suzune advises Ichinose that her past decision was foolish while acknowledging she would have made the same sacrifice for family. 26
• Shiranami Chihiro — A participant in Suzune’s growing social circle through shared meals, exercise, movies, and games. 30 34
• Yamauchi Haruki — A classmate whom Suzune forcibly restrains after he approaches her due to Haruo’s setup. 48

Story Role / Major Arcs

Enrollment and Isolation

Upon enrollment, Suzune separates herself from the excitement of the other students and focuses entirely on her brother’s recognition. Her interest in Haruo begins when she notices her own name in his notebook and suspects he possesses information about the school. 3 5

Learning the Stakes of Class A

Haruo tells Suzune that only Class A graduates receive the school’s guarantee, prompting her to recognize that class placement will likely change through competition or evaluation. She begins to consider the school’s systems more seriously while still insisting she does not need friends. 13

Growing Connections

Suzune’s rigid solitary routine gradually changes through her interactions with Haruo, Ichinose, and Shiranami. She makes bentos, participates in cooking and games, exercises with Haruo, and realizes that she has come to trust someone she once considered merely troublesome. 19 30 32

Kushida’s Exposure

While investigating Kushida’s interest in her, Suzune witnesses Kushida venting privately about both herself and Haruo. This incident fundamentally changes Suzune’s view of Kushida. 39

Class D Crisis

When Class D receives zero class points due to tardiness, absences, private conversations, and phone use, Suzune documents the class’s failures and looks for a solution. She later confronts Chabashira about her own placement in Class D and commits to proving herself by leading the class toward Class A through her own ability. 42 44 46

Conflict with Yamauchi

Haruo manipulates Yamauchi into approaching Suzune, resulting in Suzune grabbing him and slamming him onto Ayanokōji’s desk. The incident spreads rumors about Suzune and Haruo while reinforcing her intimidating reputation within the class. 48

Notable Quotes

“I don't need friends.” 13

“I will rely on my own ability to bring Class D up to Class A.” 46

Trivia

• Haruo records a rare smile from Suzune on his phone after she mocks his burnt lunch. 11
• She lost both Ludo and Old Maid to Haruo’s cheating, forcing her to accept his demands to become his assistant and cook. 31
• Her face-mask incident led classmates to speculate that she was sick or about to kill someone. 32