Horikita Suzune

Biodata

Feature	Value
Name	Horikita Suzune (堀北铃音)
Gender	Female
Species/Race	Human
Affiliation	Class 1-D
Occupation/Role	Student; Class D representative in the Akito Miyake disciplinary case
Status	Enrolled
First Appearance	Chapter 1, “The Bus ‘Dilemma’” 1

Background / History

Suzune entered the school in Class 1-D despite placing tied for third among the incoming students on the entrance examination and receiving a positive interview evaluation. She rejects the implication that she belongs among the school’s “defective products” and resolves to rise to Class A. 14 15

Her initial goal is closely tied to her older brother, Student Council President Horikita Manabu. She enrolled specifically to catch up to him, but Manabu considers her unchanged, overly focused on following his example, and incapable of reaching Class A in her present state. 19

After Manabu physically restrains and threatens her, Watanabe Hayabara intervenes. Manabu later acknowledges that Suzune has found strong companions, though Suzune insists that Watanabe and Ayanokoji are only classmates rather than friends. 19 20

Watanabe challenges Suzune’s need for her brother’s recognition, arguing that promotion to Class A should serve her own growth instead. Suzune accepts this perspective and recommits herself to reaching Class A for self-improvement rather than external validation. 21

Appearance

Suzune is a dark-haired student who typically wears the school uniform. Her composed appearance often contrasts with the tension she shows around her brother or when challenged directly. 15 20

• Dark hair, sometimes falling across part of her face. 15
• Sharp, observant gaze. 40
• Carries a sharp compass in her pocket for self-defense. 26

Personality

Suzune is independent, judgmental, and initially dismissive of behavior she considers irrational or weak; on her first day, she privately looks down on someone for surrendering a bus seat to an elderly passenger. 1 She keeps others at a distance, identifies Ayanokoji and Watanabe as classmates rather than friends, and initially struggles with social connection. 2 20

Her ambition is intense and often rigid. Early in the year, she views academically weak classmates as obstacles to Class A and agrees that “losers” should be expelled. 27 28 The midterm expulsions and Ijuin’s near-expulsion temper this outlook: she feels guilt toward her classmates, recognizes their potential, and argues that “defective products” can improve through repair and change. 29 30

Suzune becomes increasingly assertive in class matters. She questions Watanabe when his actions appear suspicious, presses for answers during the Miyake case, and refuses a compromise verdict in favor of gathering further evidence. 28 47 48

Abilities & Skills

Academic Ability

Suzune is among the strongest academic students in her year.

• Tied for third place among the incoming first-years on the entrance examination. 14
• Solves nearly all questions on the difficult midterm, missing only the final two problems. 28
• Reads literature, including Crime and Punishment. 2

Investigation and Advocacy

Suzune is capable of pursuing leads and presenting a case under pressure.

• Suspects Ayanokoji is concealing a meeting with Chabashira and follows him to the rooftop. 29
• Joins the investigation into Akito Miyake’s alleged assault. 37
• Rejects Class C’s account during the disciplinary hearing and identifies Airi Sakura as an eyewitness. 47
• Presents audio evidence against Class C and challenges its attempt to dismiss the recording as forged. 49

Determination

Suzune persists despite criticism from authority figures and personal setbacks.

• Refuses to accept that her Class D assignment defines her ability. 14
• Maintains her goal of reaching Class A even after Manabu tells her it is impossible. 19
• Seeks to reform Class D rather than dismiss every struggling student as worthless. 30

Equipment / Items

• Sharp compass — Drawn reflexively when Watanabe grabs her hand; she threatens to use it against him. 26
• USB drive — Receives and safeguards the sole copy of evidence used against Class C in the Miyake case. 49

Relationships

• Horikita Manabu — Older brother and Student Council President. Suzune seeks to catch up to him and earn his recognition, but their relationship is strained by his harsh treatment and criticism. 19 21
• Watanabe Hayabara — Classmate, reluctant adviser, and intermittent ally. He rescues her from Manabu, challenges her brother-focused ambition, lends her 40,000 points, and supplies evidence for the Miyake hearing. 19 21 25 49
• Ayanokoji Kiyotaka — Classmate. Suzune is suspicious of his hidden actions and gradually recognizes his talent, though she continues to call him annoying. 29 30
• Kushida Kikyo — Classmate. Suzune praises Kushida’s distribution of past exam papers and initially works with her to support the class. 26
• Airi Sakura — Classmate and key witness in the Miyake case. Suzune encourages her to present both testimony and physical evidence. 47
• Akito Miyake — Classmate whose defense Suzune takes up during the Student Council disciplinary proceedings. 47 49

Story Role / Major Arcs

Class D Placement and Class A Goal

After learning that Class D contains the school’s lowest-rated students, Suzune confronts Chabashira over her placement and declares that she will rise to Class A. 14 15

Conflict with Horikita Manabu

Suzune confronts Manabu over his dismissal of her ambitions. His violent treatment prompts Watanabe’s intervention, and the aftermath exposes Suzune’s dependence on her brother’s approval. 19 21

Midterm Exam and Expulsions

Suzune supports Kushida’s plan to use past papers, then becomes entangled in Watanabe’s effort to expose their circulation. She initially accepts that weaker students should be expelled, but later feels responsibility for those who fail and advocates for saving them. 26 27 29

Reconsidering Class D

Following Ijuin’s reprieve, Suzune rejects Chabashira’s claim that Class D is merely trash. She argues that students labelled defective can still be repaired and become useful. 30

Akito Miyake Disciplinary Case

Suzune helps investigate the alleged assault involving Miyake, argues Class D’s self-defense case before the Student Council, requests a postponement to obtain stronger evidence, and ultimately presents the recording that exposes Class C’s provocation. 37 47 49

Notable Quotes

“I will first ascertain the school's true intentions. I will figure out why I was assigned to Class D.” 15

“I will definitely climb to the upper classes.” 30

“Perhaps it is true that most students in Class D are defective products. However, a defective product is not the same as trash.” 30