A large-breasted and frivolous girl in the A class. She has bleached hair and tanned skin. Her temper is short, and her lack of understanding leads her to trouble. Kyouko's attitude can change suddenly, from wanting to kill to wanting to befriend. This, combined with her outgoing personality and energetic lifestyle lead her to trouble. She speaks about herself in third person. She was the most popular girl in school with the boys until Kurumi's arrival. She isn't an official member of the Roman Club, but she goes to the club room to read the manga. She has a moral ambiguity, displaying immorality and decency at the same time. Kyouko always argues with Katsu. She has no idea of his feelings for her. Kyouko likes 1000 yen notes, and demands them for her ideas, services, and bets.