She is a minor character of the Don't Toy With Me, Miss Nagatoro series. She is a high school student who joined the art club during Senpai's third year as well as an acquaintance of his since middle school and the younger cousin of the former President, with whom she shares a striking physical resemblance and habit of public nudity. She is a kōhai to all of the other characters. Sunomiya is a beautiful, shapely, and very tall high schooler with a bob cut, straight dark purplish-black hair (sometimes combed in odango and a jagged fringe. She has very pale, delicate-looking, fair skin and sharp, cold-looking purple eyes. Except for the hairstyle and the slight rounder cheeks - that signified her far younger age - she's almost identical to her older cousin Sana; also, despite her age, she's quite tall and, albeit having a seemingly less athletic physique, sports her same firm butt, massive boobs, thin waist, long legs, and slender arms. Sunomiya also has her cousin's same tendency to rarely smile and is often depicted with a serious look on her face, albeit in stark contrast with the President's stoicism, she's very prone to getting angry-looking as well. She typically wears her school uniform consisting of a white button-up shirt (whose sleeves and collar she always keeps fully buttoned), a red knot tie, and a long navy blue skirt completed with a pair of sneakers and light soccer socks. However, in summer she wears a short-sleeved shirt in her uniform, while in winter she is shown to wear a light brown sweater, black tights and occasionally a blue blazer. When not at school she always sports a very glamorous, refined, Victorian-fashion or gothic lolita and very feminine choice of clothing; however, she prefers to wear nothing but her underwear when she can get away with it.