A third grade student and the daughter of the Shimomura Swimming School, located a short distance away from the academy the main character Touya attends. She is well-known throughout the country for her swimming and has already been recommended for admission to the school. She is also active as an instructor in the infant and beginner swim classes, and she is instructing Touya, who has joined the beginners' course.
Her hobbies are fortune-telling, swimming, and watching yakuza movies.
