Even an ordinary married woman must have a lustful side if she's working such a part-time job. When she touches the erotic bodies of clients who request her massage services, she naturally becomes aroused. Since she doesn't receive enough attention from her husband at home, she constantly suffers from sexual frustration. In such a state, persistent advances could easily lead to full intercourse. Living this kind of life, she truly feels happy whenever she finds even a brief moment of fulfillment.