西園寺 七緒

A graduate of the academy and a music teacher who's also the adviser for the string orchestra club. Nao is still the same girl she used to be when she was a student: kind, but serious and firm. She is a new teacher at the academy, but doesn't show her hardships to her students and instead always faces them with a smile. Nao was once invited to become a professional violin player, but she chose to become a teacher at her former high school instead.

The experiences she went through as a student left a mark on her, and not only did she become afraid of sexual things, she also doesn't want to date or be in a relationship with a man. Nao still keeps in contact with her friends, and they meet up once or twice a year, go out to eat and then play their instruments.