Shiori is 40, has been married for five years, and has no children. Pressured by her parents, she joined a matchmaking site at 27, dated a man she met there, and married him six months later. They never had sex, even after the wedding, so the marriage ended unconsummated. She later worked at a club for mature women and remarried at 35 to a regular customer twenty years her senior, only to find herself in another sexless marriage. Seeking the excitement missing from her life, the frustrated wife finally experiences real, passionate sex with another man while traveling and writhes uncontrollably with pleasure.