Back-length black hair with two front shoulder-length strands framing her face and bangs swept to the right. • Blue eyes in the manga (green in the anime). • Full pink lips and a refined, authoritative presence. myanimelist.net Primary outfit (school uniform): The standard female Hachimitsu Academy uniform, typically worn with dark tights/pantyhose. This contributes to her polished, elite, and commanding look. Other notable outfits: • During her incarceration in the school prison: an undersized female prison uniform consisting of a short striped tank top and matching short striped trousers. • Casual clothes: Notably poor/quirky fashion sense (often mocked in the series). She tends to wear unfashionable combinations and has a habit of adding an “M” initial and bear appliqués to her favorite clothes. • Later appearances include similar academy uniforms. Key traits include: • Preference for the company of crows over most people (outside her close subordinates and friends in the Underground Student Council); she can control them and uses them for surveillance. • Initial strong misandry (“all men are trash”), stemming from her strained relationship with her perverted father. This drives much of her early antagonism toward the five male students. • Deep down she is genuinely kind and loyal: she helped a younger Meiko Shiraki gain confidence and protected her from bullying by Kate Takenomiya in middle school. She is also very close to her sister Chiyo. • Stoic/poker-faced demeanor with refined speech; she rarely shows strong emotion. Over the course of the series she softens, learns to socialize with and empathize with the boys, and shifts from antagonist to ally (and even temporary protagonist in some arcs).

Primary outfit (school uniform, highly modified and revealing): • Standard female school uniform worn in a deliberately scanty style: jacket and shirt left unbuttoned/open collar to showcase her ample cleavage (she typically goes braless). • Very short miniskirt. • Cuffed brown tights or pantyhose. • Black knee-length high-heeled latex/stiletto boots. • Often a purple thong underneath. • She frequently carries a horse-whip (or pointer stick) used for discipline/punishment. Personally: Her current confident, sadistic “queen” persona was shaped as a defense mechanism after being bullied in childhood (led by Kate Takenomiya) for her early large breasts; Mari rescued her, helped her gain confidence, and they became best friends. • Despite the harsh exterior, she can show sympathy or courtesy toward the prisoners at times (e.g., gifts or fulfilling requests). • She is stoic and workaholic in her duties but can be naive or out of her depth regarding actual S&M knowledge. • Later in the story, after psychological pressure and trauma triggers, she temporarily regresses to a more timid, clumsy, and insecure version of her childhood self with a complex about her body, before recovering aspects of her strength.

Primary outfit (school uniform): • The standard female Hachimitsu Academy school uniform. • Worn with blue leggings (or athletic/modesty pants that extend further down the legs, often described as gym pants or shorts rolled at the knees under the skirt) and an undershirt. • Typically no socks, with loafers or similar shoes. • She is notably more modestly dressed than Meiko Shiraki, deliberately wearing underlayers (especially during guard duty) to avoid exposure. Key traits include: • Hostility toward boys (like her USC peers), though more reserved than Meiko. • Deep down, she is quite shy, innocent, and impressionable—often blushing, fainting, or becoming mortified in compromising or sexual situations (especially those involving Kiyoshi). • Strong loyalty to Mari and the USC; she values friendship and can be protective. • Develops a mild obsession/crush on Kiyoshi after repeated embarrassing encounters (starting with him accidentally seeing her in a private moment), which she often denies or expresses through continued aggression (classic tsundere elements). • Other notes: Fear of mushrooms (tied to a hospital memory); she can switch between a “cute/fluffy” facade and her aggressive true nature.