Horikita

Biodata

Feature	Details
Name	Horikita Suzune (堀北鈴音)
Gender	Female
Affiliation	Second-Year Class D; Student Council
Occupation / Role	Class D leader alongside Hirata Yosuke; Student Council officer 415 439
Status	Student at Advanced Nurturing High School
First Appearance	Chapter 30

Background / History

Horikita initially treats Class D's problems as matters the class must solve without outside assistance. During the Sudo Incident, she is suspicious of Ichinose Honami's offer to investigate, but accepts it after recognizing Ichinose's commitment to uncovering the truth. She identifies Sakura Airi as a potential witness, while acknowledging that Sakura's extreme shyness could undermine her testimony 30.

Her early leadership is marked by isolation and an unwillingness to depend on others. The Sports Festival exposes the cost of that approach: Class D is targeted through unfavorable matchups, Horikita loses narrowly to Ibuki Mio, and she is injured in an obstacle-race collision with Kinoshita Minori 113 117. Despite the class's defeat and Ryuen Kakeru's pressure, she chooses to bring Sudo Ken back into the class rather than abandon him 121.

After confronting Sudo in the dormitory lounge, Horikita helps him understand that he must seek forgiveness from his classmates rather than remain fixated on the lost festival. Her guidance leads Sudo to acknowledge his recklessness and resolve to make amends 123.

Horikita later uncovers Kushida Kikyo's betrayal and challenges her to a mathematics-based bet with expulsion as the penalty. The bet places both Horikita and Ayanokoji Kiyotaka at risk should she lose 128 138.

Her relationship with her older brother, Horikita Manabu, shapes much of her early self-image. She spends years attempting to match his standards, including keeping long hair because she believed he preferred it. At his graduation, she cuts her hair short, reconciles with him, and declares her intention to pursue Class A graduation as herself rather than as “Horikita Manabu's younger sister” 339 340.

Having become more receptive to cooperation, Horikita joins forces with Sakayanagi Arisu during the Cross-Year Deserted Island Exam. When their group faces pressure from Tsurumi Xuewuhui, she elects to handle designated-area check-ins independently, judging that her experience operating alone makes this the most efficient way to support the group 493.

On the exam's final day, Horikita abandons her planned route after receiving an anonymous warning that Ayanokoji will be expelled in Area I2. She places his safety above her group's immediate Class Point gains, recognizing that he is irreplaceable to Class D 567. Ibuki accompanies her to confront Tsurumi, but their combined efforts fail to overcome the first-year's superior combat ability, and Tsurumi disables them to prevent their interference 567 568.

Appearance

Horikita is a tall, slender girl with pale skin, clear facial features, and sharp violet phoenix eyes. Her formal posture and immaculate uniform reinforce her cold, self-disciplined presence 30 415.

• Originally wore long, straight black hair; she later cuts it short before reconciling with Manabu 30 339.
• Her upturned eyes and tense bearing give her an intimidating, distant impression 30.
• Wears a navy-blue competitive one-piece swimsuit for pool activities 95.
• Often maintains a rigidly straight back and composed expression even while under pressure 245 415.

Personality

Horikita is proud, direct, analytical, and initially distrustful of people outside her immediate sphere. She reacts sharply to perceived disrespect, refuses to expose Class D's weaknesses easily, and has little patience for vague or manipulative behavior 30 68.

Her determination can become excessive. During her fight with Ibuki, her fixation on winning makes her movements stiff and predictable; Ryuen is able to anticipate her ground-control strategy and prepare Ibuki accordingly 297. She also recognizes that her earlier understanding of violence was limited by dojo rules and did not prepare her for Hosen's genuine brutality 417.

Over time, Horikita becomes more willing to value others' strengths and seek cooperation. She accepts Ichinose's help, supports Sudo's redemption, admires Hirata's class-evaluation system, and openly asks Ayanokoji for assistance in pursuing Class A 30 123 333 340. Her later decisions during the Cross-Year Deserted Island Exam show that she can independently shoulder difficult responsibilities while still prioritizing the people essential to her class over a narrower pursuit of points 493 567.

Abilities & Skills

Leadership and Negotiation

Horikita acts as Class D's representative in high-pressure discussions and makes long-term decisions intended to protect weaker classmates.

• Guides Sudo through his Sports Festival crisis and gives him a path toward reconciliation with Class D 123.
• Assesses Class D's student data and seeks first-year partners for students endangered by the Cross-Year Academic Ability Exam 387 393.
• Proposes an equal, point-free partnership with First-Year Class D to build trust beyond a single exam 403.
• Remains composed during Hosen's escalating demands and restrains Sudo from acting impulsively 388 416.
• Recognizes Hirata's more comprehensive approach to class management and supports his evaluation system 333 334.
• Works with Sakayanagi's group during the Cross-Year Deserted Island Exam and volunteers to conduct designated-area check-ins alone so her teammates can focus on tasks and group expansion 493.
• Abandons her assigned route to investigate a threat to Ayanokoji, accepting the resulting disadvantage to her group's point strategy because she considers him indispensable to Class D 567.

Academic Ability and Analysis

Horikita possesses high academic ability and excels at processing student data, exam conditions, and strategic risks.

• Holds an Academic Ability rating of A- 394.
• Ranks ninth among the grade's top-ten students by overall ability 374.
• Rapidly compares OAA data, class distributions, academic ratings, and student faces while investigating First-Year Class D 387.
• Earned full marks in mathematics when graduating junior high 392.
• Chooses mathematics as the subject of her wager with Ayanokoji 340.
• Quickly verifies Ayanokoji's movement through GPS data after receiving the warning concerning Area I2, distinguishing the apparent route from his actual approach toward the area 567.

Martial Arts and Combat

Horikita has formal martial-arts training, but her experience is better suited to regulated competition than uncontrolled violence.

• Uses a karate straight punch, judo throws, and Sanda combinations against Ibuki 297.
• Favors a ground-control approach in combat, which Ryuen identifies and counters through Ibuki's training 297.
• Takes an orthodox karate stance against Hosen despite knowing his superior size and strength 417.
• Is overwhelmed by Hosen because she lacks experience responding to real, ruleless violence 417.
• Combines her close-range karate and judo-based grappling with Ibuki's mobile Capoeira legwork against Tsurumi, nearly securing joint locks despite the latter's positional advantage 568.
• Is ultimately unable to defeat Tsurumi, whose exceptional combat ability and precise non-lethal strikes overcome both Horikita and Ibuki 568.

Physical Competence

Horikita is a capable athlete, though not invincible against specialized opponents.

• Competed as one of Class D's key female athletes during the Sports Festival 110.
• Lost the girls' 100-meter race to Ibuki by a narrow margin 113.
• Was targeted and eliminated first during mounted warfare after being surrounded by Class C's forces 119.
• Sustained an ankle injury after colliding with Kinoshita during the obstacle race 117 121.
• Possesses sufficient endurance and survival experience to operate independently during the Cross-Year Deserted Island Exam while her group divides its responsibilities 493.

Relationships

• Ayanokoji Kiyotaka — Classmate and strategic partner. Horikita relies on his analysis, asks for his help in reaching Class A, and entrusts him with negotiations after Hosen attacks her and Sudo 340 419. During the Cross-Year Deserted Island Exam, she abandons her planned route to investigate an apparent plot to expel him, explicitly treating his safety as more important than the points her group could lose 567.
• Horikita Manabu — Older brother and former Student Council president. His harsh distance fuels her insecurity, but they reconcile at his graduation after she rejects living in his shadow 325 339.
• Sudo Ken — Classmate whom Horikita repeatedly guides through crises. She recognizes his value to Class D, helps him pursue forgiveness, and earns his trust 121 123 394.
• Hirata Yosuke — Co-leader of Class D. Horikita openly admires his inclusive class-evaluation system and acknowledges that she could not have designed a more complete one 333 415.
• Ichinose Honami — Initially viewed with suspicion during the Sudo Incident. Horikita later respects Ichinose's selfless definition of companionship, though she questions its limits 30 137.
• Kushida Kikyo — Classmate and adversary from junior high. Horikita discovers Kushida's betrayal and risks expulsion in a bet meant to expose her 128 138.
• Ryuen Kakeru — Rival class leader. Their encounters revolve around information warfare, leadership, and Ryuen's efforts to expose Class D's hidden strengths 68 231.
• Ibuki Mio — Athletic and combat rival. Ibuki defeats Horikita in the Sports Festival and later wins their Command Tower Exam fight 113 297. Despite their rivalry, Ibuki accompanies Horikita toward Area I2 and cooperates with her against Tsurumi out of solidarity with their year 567 568.
• Nanase Tsubasa — First-year negotiation partner. Horikita seeks an equal alliance with Nanase's class and believes Nanase can bring Hosen to cooperate 403 410.
• Hosen Kazuomi — First-year opponent who attempts to force Class D into an exploitative partnership. Horikita refuses his demands and is injured when his negotiations turn violent 388 416 417.
• Sakayanagi Arisu — Temporary ally during the Cross-Year Deserted Island Exam. Sakayanagi accepts Horikita's decision to perform check-ins independently and expresses confidence in her ability to do so 493.
• Tsurumi Xuewuhui — First-year combatant who blocks Horikita's route to Area I2. Horikita and Ibuki attempt to remove Tsurumi together but are defeated by her superior skill and restricted-space tactics 567 568.

Story Role / Major Arcs

• Sudo Incident — Meets Ichinose and Shimiya while investigating evidence for Sudo's defense; accepts outside assistance and identifies Sakura as a possible witness 30.
• Deserted Island / VIP aftermath — Deflects Ryuen's attempts to identify Class D's hidden leader and tries to redirect his attention away from Ayanokoji 68.
• Sports Festival — Becomes a primary target of Class C's strategy, loses to Ibuki, suffers an injury, and ultimately brings Sudo back into Class D's ranks 113 117 121 123.
• Kushida Conflict — Confronts Ryuen and Kushida after learning of their scheme, then initiates an expulsion-stakes bet against Kushida 128 138.
• Leadership Crisis — Questions whether she is qualified to lead after Ryuen challenges her inability to command or sacrifice classmates 231.
• Command Tower Exam — Represents Class D in a no-holds-barred fight against Ibuki; despite using multiple martial arts, she loses when staff stop the match 296 297.
• Manabu's Graduation — Reconciles with Manabu, cuts her hair short, and commits to pursuing Class A graduation on her own terms 338 339 340.
• Cross-Year Academic Ability Exam — Leads efforts to protect academically weak Class D students, negotiates with first-years, and refuses to yield to Hosen's coercion 393 403 416.
• Student Council — Joins the Student Council after honestly explaining her past and declaring her ambition to become Student Council president 439.
• Cross-Year Deserted Island Exam — Cooperates with Sakayanagi's group, assumes independent check-in duties, then breaks from the route on the final day to investigate the warning surrounding Ayanokoji's presumed expulsion. She and Ibuki are stopped by Tsurumi before they can enter Area I2 493 567 568.

Notable Quotes

“If I ran away now, I'd become a coward I couldn't even acknowledge myself.” 128

“I... I have always, always been chasing my brother's shadow.” 339

“Of course, I understand that my strength alone is far from enough. So I need the help of our classmates, and Hirata's help...” 340

Trivia

• Horikita's short hair marks her decision to stop shaping herself around Manabu's preferences 339 340.
• She can prepare ordinary home-cooked dishes, though Shimiya's cooking ability is described as far superior 399.
• Her praise is characteristically blunt; she tells Hirata directly, “I admire you,” after reviewing his evaluation system 333.