A man who goes to school while working part-time to earn tuition. His workplace is full of part-time housewives who often complain to him. As usual, he was changing clothes at work when he was alone with a part-time housewife named Nana. While listening to her complaints until the start of work, the atmosphere became strange, and she kissed him saying, "Is this kind of old lady no good?" They even had sex secretly. From that day on, whenever he found the time, he would have sex every day at his part-time job.
