Nonoka Sasahara is a third-year high school student at Seiou Gakuen, assigned to Class D, and a member of the pottery club. She works part-time as a waitress at a bakery and restaurant that her grandfather owns, and she is permitted to eat as much cake as she wants, though the cost is deducted from her wages. Despite her glamorous appearance and good sense of style, she remains unaware of these qualities and often displays a sweet demeanor that can come across as irritating to those around her. She has a fluffy and healing atmosphere, but she is notably clumsy in both kitchen work and pottery, frequently failing in her attempts. Nevertheless, she is highly motivated and always tries to improve, no matter how many times she stumbles. After extensive practice, she has become skilled at making an excellent cup of coffee. Her grandfather runs the establishment, and when he injures his hip in one episode, she takes the initiative to recruit several schoolmates to help manage the restaurant for two days. She shares a particularly close bond with her kouhai, Shiina Kokomi. Her personality is defined by a persistent drive to do better, a lack of self-awareness regarding her own attractiveness, and a gentle, clumsy nature that makes her endearing to those around her. Her development centers on learning to take responsibility and lead when needed, demonstrating her determination and willingness to ask for help. Notable abilities include her ability to brew high-quality coffee despite her general lack of coordination in other tasks.