Horikita Suzune

Biodata

Feature	Value
Name	Horikita Suzune
Original Name	堀北铃音
Gender	Female
Affiliation	Class D, Advanced Nurturing High School
Occupation/Role	Student; class representative figure and investigator in Class D affairs
Status	Active 41
First Appearance	Chapter 1

Background / History

Horikita is introduced on the bus to Advanced Nurturing High School, where she refuses to surrender her seat, insisting that she acts according to her own convictions. 1

She enters Class D with the stated goal of eventually reaching Class A. Her determination is tied to her rivalry with her older brother, Student Council President Horikita Manabu, who dismisses her ability and urges her to leave the school. 15 33

During the midterm period, Horikita participates in study sessions for struggling classmates and purchases previous examination papers from Long Aotian for 40,000 points. 14 When Sudo fails by two points, she attempts to buy the needed score increase herself, then helps rally the class to pool 200,000 points for him. 19

Sudo is later expelled after a fight-video scheme. Horikita treats the incident as a setup and works with Ayanokoji to identify the person responsible, including spending 10,000 points to examine surveillance footage. Their search produces no lead. 20 27

Appearance

Horikita is a black-haired girl who wears the Advanced Nurturing High School uniform. 9

• Black hair 9
• Often carries herself with a stern, composed expression during disputes and investigations 27 29

Personality

Horikita is proud, stubborn, and intensely self-reliant. She rejects comparisons to others and frames her choices as matters of personal conviction. 1 Long Aotian characterizes her as aloof and inclined to view others as hindrances, an assessment reflected in her harsh handling of the struggling students during the study session. 14 24

Despite this distance, she takes responsibility for Class D’s problems. She tries to protect Sudo from expulsion, investigates the circumstances behind his later removal, and stands by Ayanokoji when he is accused before the Student Council. 19 20 29

Her persistence can isolate her from her classmates. After using borrowed points on the Sudo investigation without results, she faces open resentment from the class but maintains that the expenditure was necessary for their future safety. 40

Abilities & Skills

Academic Support and Planning

Horikita helps organize Class D’s preparation for the midterms and acts quickly when Sudo’s failing grade puts him at risk of expulsion.

• Participates in study sessions for academically struggling classmates 6 14
• Purchases prior-year examination papers to improve Class D’s chances of passing 14
• Proposes buying score points for Sudo after recognizing that school points can purchase special services 19

Investigation

Horikita persistently pursues answers in the Sudo expulsion case.

• Identifies that Sudo was lured to the fight location by text message 27
• Reviews surveillance footage alongside Ayanokoji 27
• Continues seeking another investigative angle after the footage yields no suspect 27

Advocacy

Horikita is willing to challenge authority and argue on behalf of classmates she believes are being treated unfairly.

• Presses Chabashira for a remedy to Sudo’s expulsion threat 19
• Challenges Long Aotian’s demand to inspect Ayanokoji’s point balance 29
• Serves as Ayanokoji’s defense counsel during the Student Council hearing 29

Relationships

• Horikita Manabu — Her older brother and the Student Council President. Their relationship is hostile; Manabu belittles her prospects and physically threatens her during their vending-machine confrontation. 15
• Ayanokoji Kiyotaka — A Class D associate who assists with investigations and intervenes against Manabu. Horikita defends him during the Student Council hearing, though the evidence against him causes her faith to waver. 15 27 29 30
• Kushida Kikyo — A classmate whom Horikita openly finds uncomfortable. Kushida later directs class frustration toward Horikita over the points used for the Sudo investigation. 9 40
• Sudo — A Class D student whom Horikita tries to save after his midterm failure. She later investigates the scheme surrounding his expulsion. 19 20
• Long Aotian — A Class A student who sells her prior-year examination papers, later appears in the hearing against Ayanokoji, and is identified by Ayanokoji as the person behind his framing. 14 29 41

Story Role / Major Arcs

Midterm Examination Crisis

Horikita helps Class D prepare for the midterms, purchases prior-year papers from Long Aotian, and leads the attempt to gather enough points to prevent Sudo’s immediate expulsion after his failing score. 14 19

Sudo’s Expulsion Investigation

After Sudo is expelled through an apparent setup, Horikita and Ayanokoji investigate the fight video and the message that lured him to the scene. Their surveillance search fails to identify the culprit. 20 27

Ayanokoji’s Student Council Hearing

Horikita acts as Ayanokoji’s defense counsel when he is accused of point theft and later indecent conduct toward Kushida. The accumulating evidence leaves her conflicted over whether she can trust him. 29 30

Class D’s Point Dispute

When Kushida reveals that Horikita used borrowed points on the unsuccessful investigation, Class D turns against Horikita. She refuses to apologize for what she considers a necessary measure to protect the class. 40

Learning Long Aotian’s Involvement

Following Ayanokoji’s return, Horikita learns from him that Long Aotian was responsible for framing him. She remains shocked by the reversal of Ayanokoji’s expulsion and the circumstances surrounding Kushida’s accusation. 41