On the surface, Murasaki is a serious teacher, but behind the scenes she is having an affair with a student. They take great care to avoid being found out, but before long, the student, seeking the thrill, begins to ask for a relationship even within the school... Not here! She desperately refuses, but she is overcome by the technique of her student, whose sex quotient has skyrocketed in Murasaki's special class. At the very least, she wants to avoid being found out. Murasaki holds back the sounds of her voice as she silently ascends to heaven.