Matsuda and Kuroda ended up staying at a friend's house for a while. The two are interested in their friend's mother, Yoshie, who is quite seductive. One day, since Matsuda has no memories of his own mother, Yoshie decides to act as his mother for a day. Alone together, the two end up in an inappropriate relationship. Yoshie, whose long-forgotten desires have been awakened… She becomes engrossed in affairs with the youngsters…
