Although capable at work, 'Ryu' has a cold and mysterious aura. 'Koi' had been interested in him for some time. Before marriage, 'Koi' was trained in M-style by a man different from her husband, making her a lustful housewife. One day, during a company trip to a hot spring resort, the two ended up entering the bath together. At that moment, 'Ryu' discovered 'Koi's secret fetish...
