小鳥遊 澪

Mio is one of the childhood friends of Takumi and the youngest of the group. She likes to play a violin and is often teased by Ritsuko because of her cute and innocent appearance. Her father died in a car accident when she was a kid and her mother left her; she was taken care of by Haruka, a teacher at the school and considers her as a mother. Her father's death strongly affected her and she changed, becoming shy and always relying on Takumi to protect her.