Mariko Koto, a 43-year-old PTA mom who relieves her frustrations by having a one-hour karaoke secret affair once a week with her eldest son's young homeroom teacher.
Mariko is a PTA officer at her eldest son's junior high school. One day, at the president's suggestion, she decided to throw a school festival that included her homeroom teacher. We had a great time at the izakaya for the first party, and went to karaoke for the second party. Meanwhile, the frustrated Mariko sets her sights on her eldest son's homeroom teacher. Her close seduction takes advantage of her older experience and her motherly nature. Eventually, the two end up having an affair...
