A beautiful wife seems to be enjoying her day off driving, but in fact, she has a man who is like a "second master" to her husband, who she keeps secret... She feels sorry for her kind husband, but he has given her sexual training, and they are in a relationship where she cannot resist him... Today, again, in the middle of a family drive, her master calls her, not caring at all, and instead seems to be enjoying himself, and summons her to a multi-purpose public restroom with just one phone call.