Hisako Kotobuki

Gender: Female

Age: Not officially stated, at least around 17-18 (stated to be a third-year Japanese high school student)

Appearance: Hisako has brown hair typically styled in a high side ponytail (or side tail) with braided bangs/side sections and some distinctive hair details. She has golden/amber-brown eyes (often described with a vertical-pupil-like quality in certain art styles). She has a noticeable fang/tiger tooth.

She has a notably well-endowed, mature figure for a high school student (large breasts, good proportions) that stands out, though the other council members' extreme personalities make her seem relatively "ordinary" or understated by comparison. She usually wears the standard Fujinasu Academy sailor-style uniform (serafuku). She is frequently shown sweating or flustered, which ties into her personality.

Personality: Outwardly, she is the ideal student council president: diligent, responsible, kind, reliable, academically excellent (top of the school overall), athletic, and highly respected/popular among students. She is sincere, hardworking, and has a hard time saying no, often taking on extra work.

Her defining trait is that she's actually a severe muttsuri-sukebe (closet pervert / secretly extremely lewd and curious about sexual topics). She is pure-hearted and easily embarrassed in public, yet her mind frequently jumps to wild, explicit fantasies or conclusions. She often tries to maintain a proper image while her internal thoughts and occasional actions (usually) betray her. She is often the "victim" or straight-woman who gets teased and pushed around by the more chaotic council members (especially Arisu). She can be a bit airheaded/clumsy due to her distractions and has a tendency toward extreme assumptions.

Hobby/Occupation: High School Student, Student Council President

Background: She comes from a relatively ordinary family that runs a restaurant near the station (often called "Shokudō Kotobuki" or similar). She has a younger brother (Taiga Kotobuki) who can be jealous of her closeness with Ume, and a younger sister (Shiori Kotobuki). Her parents are Kiryu Kotobuki and Mayuki Kotobuki (Mayuki is particularly noted as looking young and having a large figure).

As president she genuinely cares about the student council and its members, treating them with a familial affection. She wants to be reliable and helpful (sometimes feeling insecure when Ume leans on the more eccentric members instead of her). Her hidden perverted side and pure-hearted reactions form much of the comedy and the "holes" in the otherwise competent student council.

Additional Information: ● Hisako Kotobuki is a main character from the manga Even the Student Council Has Its Holes! (Seitokai ni mo Ana wa Aru!) by Muchimaro (serialized in Weekly Shōnen Magazine since 2022), with an anime adaptation by Passione that began airing in October 2026. She is voiced by Haruka Shiraishi in the anime.

● She is a third-year high school student at Private Fujinasu Academy and the Student Council President of the school.

● Despite being the nominal heroine, the surrounding cast is so eccentric that she often ends up looking relatively ordinary or being the butt of the joke/gag.

● She has left personal items (including underwear) in the student council room, leading to Ume's early impression of her as "the panty girl."

● Hisako is often depicted dealing with her urges privately (more directly than other characters in the main story).

● She is frequently the accidental fanservice / wet-clothes / wardrobe-malfunction character.

● Her phone search history is notoriously dirty.

● She has a strong "big sister" aura that she sometimes slips into unconsciously and then gets embarrassed about.

● Her favorite food is nasu no agebitashi (deep-fried eggplant soaked in dashi/broth).

● Her family runs a set-meal restaurant near the station (usually referred to as "Shokudō Kotobuki").

● Hisako is stated to be approximately 160 cm tall, making her around 5'2" - 5'3" ft.

● Fans speculate that her measurements (bust, waist, hips) are B91/W60/H94.

Relationships: ● Ume Mizunoe Ume is a first-year student council member/secretary whom she develops a clear crush on. She is conscious of him, gets jealous when other girls help or get close to him, and wants him to rely on her more. She also sometimes has lewd fantasies about him, but Ume largely remains unaware and sees her mainly as the sincere, reliable senior. She even shifts from calling him by surname to more familiar address over time. They are sometimes treated as a couple-like pair by others.

● Arisu Terui Arisu is a second-year treasurer and long-time fellow council member. Arisu is fully aware of Hisako’s perverted/clumsy side and frequently teases or banters with her.

● Tan Otori Tan is a third-year middle school student and the council's public relations representative. He's a rather troublesome but occasionally highly competent junior. Hisako finds him a handful but useful when motivated, usually tolerating his chaos while relying on Arisu to keep Tan in check.

● Komaro Michinoku Komaro is a first-year secretary and general affairs officer. Hisako has a subtle wariness/jealousy when Komaro is close to Ume, but holds no ill will towards her despite this. In fact, she often looks after the innocent/defenseless Komaro in a pseudo-motherly way.

● Other council members and advisor (Satomi Hiratsuka) She has familial affection towards them overall, being relatively "normal" among the eccentrics.