Yumi Ichise had divorced her husband several years ago and lived with his son Koji. One day Koji 's homeroom teacher Sahara came to visit and Koji' s results showed that entering a university to be entered in an escalator style was severe, and it is said that employment is also in time from now. Hiromi who does not have words with shock. Then, a bad teacher, Sahara, touches my mother 's feelings thinking of my son by accidentally recommending a recommendation entrance examination. My mother who had not been doing sex for a while is feeling "If it is for Koji."