高宮 綾乃

She is the school nurse.

Tomomi often uses the infirmary, and Ayano is the only person around who knows about Tomomi's body. Unlike Tomomi, Ayano is very open-minded about her sexuality, although she hides the fact that she has a double identity from those around her.

She has multiple sex partners, is bisexual and a bit sadistic. She sees that Tomomi and the main character are having a relationship, and she gives Yoshiki all sorts of advice.