Biodata

Feature Value
Name Horikita Suzune (堀北) 3
Gender Female
Affiliation Tokyo Advanced Nurturing High School; initially Class D, later described as Class C following the class's promotion 3 25
Occupation/Role Student; Shinomiya Ju Fan's partner in the effort to promote their class to Class A 8 14
Status Active
First Appearance Chapter 3

Background / History

Horikita enters the school determined to remain detached from her classmates. During self-introductions, she gives only her name and hobby—reading—and openly states that she has no intention of getting along with the class. Her isolation is not due to a lack of ability: she is academically capable, athletic, and highly observant, but her interpersonal conduct contributes to her placement in Class D. 5 19

She becomes involved with Shinomiya Ju Fan after he persuades her to remain for the class introductions and later accompanies her on a convenience-store trip. Though she initially treats him coldly, she listens to his warnings about the school's point system and agrees to investigate it with him. 5 6 8

After reviewing the evidence, Horikita accepts Shinomiya's proposal that they work together to promote their class to Class A. She insists that their arrangement is one of mutual assistance rather than intimacy, but gradually becomes more comfortable around him and eventually acknowledges him as a friend. 8 9 20 24

Her ambition is strongly tied to her older brother, Student Council President Horikita Manabu. When he rejects her request to join the student council and tells her to reach Class A first, she resolves to prove herself through her class's advancement. 13 14

Appearance

Horikita is regarded as one of the most attractive girls in her class. She has a fit, well-proportioned physique associated with martial-arts training and usually presents a cold, sharp expression that discourages others from approaching her. 12 17

  • Sharp, icy gaze and a severe demeanor 6
  • Fit physique with no excess fat; trained in martial arts 17
  • Her rare smiles contrast sharply with her normal reserved expression 9 24
  • Performs strongly in a swimsuit-based swimming competition, finishing fifty meters in approximately 28 seconds 19

Personality

Horikita is serious, disciplined, and intensely goal-oriented. She initially regards friendships as unnecessary distractions and prefers practical cooperation over emotional closeness. Even when she begins relying on Shinomiya, she frames their bond as a partnership that benefits their shared Class A objective. 5 9 14

She is blunt and easily irritated by Shinomiya's teasing, often responding with physical reprimands. Her signature threat is a compass, which she has used to pressure or warn him on several occasions. 6 9 12 49

Despite her aloofness, Horikita is capable of empathy and loyalty. She worries when Shinomiya nearly drowns, supports Sudo during the disciplinary hearing, and commits herself to helping any classmate whose problems could hinder the class's advancement. 18 40 41

Her composure weakens around her brother. She seeks his approval, becomes visibly shaken by his harsh criticism, and is notably embarrassed when others suggest that she and Shinomiya are dating. 14 49

Abilities & Skills

Academic Ability and Strategic Analysis

Horikita is a capable student who systematically examines the school's rules, class-point deductions, and avenues for promotion.

  • Records potential sources of point deductions, including lateness and disruptive classroom behavior 23
  • Helps present Shinomiya's evidence and plans to the class using a projector 11 25
  • Challenges unsupported claims during Sudo's hearing and presses the opposing side over its lack of evidence 40
  • Remains focused on narrowing the gap between her class and Class A 14 36

Athleticism

Horikita possesses strong overall athletic ability and is an accomplished swimmer.

  • Wins her swimming heat and completes the fifty-meter race in about 28 seconds 19
  • Attributes her swimming ability to intense training after being weak at it in middle school 19
  • Her martial-arts training contributes to her fit physique and physical confidence 17

Debate and Class Advocacy

Horikita can argue forcefully when defending her classmates or the interests of her class.

  • Acts as one of Sudo's reviewers during the disciplinary hearing 39
  • Challenges the evidence presented against Sudo and supports his defense before the student council 40
  • Encourages Sudo to improve himself after his acquittal rather than treating the outcome as a personal favor 41

Equipment / Items

  • Compass — Frequently carried and used to threaten or physically reprimand Shinomiya when he provokes her. 6 12 49
  • Books — Enjoys reading; she is first seen reading Crime and Punishment. 3
  • Anti-swelling and pain-relief medicine — Gives Shinomiya medicine after striking him during their encounter with Manabu. 14

Relationships

  • Shinomiya Ju Fan / Ju Ji — Initially an inconvenient classmate, then her partner in the plan to reach Class A. Their relationship develops into acknowledged friendship, though she remains defensive about appearing close to him. 8 9 20 24
  • Horikita Manabu — Her older brother and the Student Council President. She seeks his recognition and hopes to follow his path, while he pushes her to prove herself by reaching Class A. 13 14 49
  • Kikyo Kushida — Initially distant, but their relationship becomes less rigid through their mutual connection to Shinomiya. They train Shinomiya together in swimming and later share social outings and lunch. 20 28 45
  • Ayanokoji Kiyotaka — A classmate with whom she has a restrained, sometimes tense rapport. She becomes upset when he suggests Shinomiya may be confessing to Sakura. 3 29
  • Sudo Ken — A classmate she supports during his disciplinary case; she later tells him that his improvement is the best way to repay the class's help. 36 41
  • Ichinose Honami — Meets her at a café with Shinomiya and Kushida, where they discuss a possible alliance between their classes. 28

Story Role / Major Arcs

S-System Investigation and Class A Partnership

Horikita accompanies Shinomiya as he investigates the school's S-System and class-point structure. Convinced by the evidence he presents, she accepts a formal partnership to pursue Class A promotion. 8 9

Student Council and Manabu's Challenge

At the club orientation, Horikita confronts her brother and asks to join the student council. Manabu rejects her, telling her to promote to Class A first; his response strengthens her resolve to improve her class. 13 14

Swimming Lessons

Horikita performs well in the swimming competition and joins Kushida in helping Shinomiya overcome his fear of water. During the lessons, she reluctantly confirms that Shinomiya is her friend. 18 19 20

Midterm Preparation and Class Leadership

Horikita assists Shinomiya in presenting strategies for the midterm and supports the class's effort to avoid failure. Her growing trust in him becomes clear as she helps organize plans to protect and gain class points. 23 24 25

Sudo Disciplinary Hearing

After Sudo is accused of assault, Horikita monitors the situation, serves as a reviewer, and argues against the weak evidence brought by the opposing class. She remains beside Shinomiya during the hearing and helps secure Sudo's acquittal. 36 39 40 41

Growing Social Connections

Though still reserved, Horikita begins accepting social invitations from Kushida and Shinomiya. She meets Ichinose, discusses a potential inter-class alliance, and participates in an increasingly friendly lunch with Kushida and Shinomiya. 28 44 45

Dating Rumor with Shinomiya

Rumors that Horikita and Shinomiya are dating reach Manabu. Horikita becomes unusually shy while denying the claim, but ultimately helps clarify that they are friends rather than a couple. 26 49

Trivia

  • Horikita's stated hobby is reading. 3
  • She had never eaten instant noodles before her convenience-store outing with Shinomiya. 6
  • She initially had only four contacts in her phone. 12
  • Shinomiya's system records her favorability as reaching 50 after her meeting with Manabu and 60 after she acknowledges their friendship. 14 24
  • She is uncomfortable in crowded environments and initially declines group meals for that reason. 12