A housewife living in a high-rise condominium in Yokohama, married to a banker with a college-student son, is a wealthy woman longing for intimacy after years of a sexless marriage. Wanting to reclaim her self-worth, she decides to appear in an adult video. Seeking an experience she can't get any other time, she steps into her first-ever humiliation and training session. This marks a new beginning toward rebuilding her relationship with her husband.