Mio Mizukoshi

Mio Mizukoshi is the supporting character of the series. She is a third-grader who is noted to be Ai Hinatsuru's friend. Mio has short brown hair that has two black x-shaped hair clips on either side and brown eyes. She is wearing a red jacket and brown shorts. Mio gives the impression that her general attitude is cheerful and energetic third-year elementary school student.