Chiharu, who joined a tennis circle to combat her lack of exercise and became close with the coach, ended up having a physical relationship due to excess time and sexual desire. With her husband away on a business trip, the frequency of their trysts escalated daily. Unaware that she had been seen in these acts, she was threatened by the building manager and, seeking stimulation, even engaged in sex with a junior who harbored feelings for her, indulging in pleasure together.
