Miki is the captain of Jyoyō Akanegaoka's female soccer team. She convinces Kyosuke to become the team's manager and helps him realize that he stills loves soccer, making him join Jyoyō Akanegaoka's male team. After that she still cheers him on at every game. She will sometimes scold Kyosuke when he is upset. They are described as having a weird relationship and know each other very well. Nothing is revealed about her personal life out of school and soccer.