Five years after graduation. Played with by a former student who's become a slut... Kurumi Shiiki NACR-721

While walking down the street, a strange girl called out to me. The girl, who called me "teacher," introduced herself as "Kurumi Shiiki." No wonder I didn't remember her; in my memory, she was just an ordinary-looking child. Before I even realized it, Rumi had somehow come to my house and asked me to teach her English. But when I realized that Rumi wanted me to only teach her meaningful English, I let her have her way…