Miyuki is a scrupulous and beautiful female teacher that gives off an unapproachable aura. She is stern at reprimanding students. She acts aloof and won't take a joke, distancing herself from the students. However, it is rumored that she is totally the opposite in private.

Itsuki keeps teasing Miyuki, still not knowing she actually is his homeroom teacher., Miyuki's colleague, Kurumi, walks in on them, and now she also wants to be part of the fun, this results in him finally figuring put just who he had been fucking.