Mr. Morishita, who runs a sports gym, apparently worked as a gym trainer when he was in his 20s. - After getting married and having a child, he quit being a trainer and became a business owner, and now his daughter is a fitness trainer. - However, even though her work is going well, her relationship with her husband, who is constantly cheating on her, seems to have cooled down, so this time she decided to release her sexual desire and enjoy it in order to relieve her daily frustrations.