Mitsumine Miyuki

"I'm happy to lend you my chest whenever you need, Shun."

Also new to campus is Shun's buxom homeroom teacher, Miyuki. Gentle, kind, and well-loved by her students, she also happens to be... Shun's old babysitter from when he was a child?! It's been ten years since they've talked, but "Ms. Mitsumine" still seems to enjoy doting on him—both on campus and off of it. In fact, whenever they're alone together, all sense of personal boundaries flies out the window, and her true feelings return to the surface...