Mina Nakanotani is a supporting character in the Air Master series. She attends a private school that appears to be for wealthy students. Mina is defined by her extreme shyness, lack of confidence, and tendency to be easily intimidated and cry frequently. She is notably self-conscious about her exaggeratedly large bust, a physical trait that is used primarily for comedic effect rather than fan service.

Her primary motivation is her deep, obsessive crush on Maki Aikawa, the protagonist. Mina feels safe and secure when near Maki, and she expresses her affection through physical advances, including kissing and an incident of unconscious sexsomnia. Her friends regularly tease her about this infatuation. Despite her devotion, Maki is uncertain about how to handle Mina's feelings.

Mina also attracts admirers of her own, including Reiishi Mishima and many members of Kinjirou's Black Suit gang. She has been a longtime fan of Nanjou Remon's novels. In the story, Mina serves as comic relief and one of Maki's close friends. Over the course of the series, she starts off as quiet and shy but gradually becomes more whiny and obnoxious in her behavior. She does not possess any notable fighting abilities, as her role is primarily to provide emotional contrast and humor within the cast.