Rin is 32, has been married for eight years, and has no children. She met her husband through work, but despite their affectionate marriage, his low sex drive has left them sexless for about three years. When another man recognizes her submissive nature, old memories of being teased during her adult student days return. She decides to appear in porn to discover her true desires, awakening her long-dormant submissive side and drowning in unfamiliar pleasure as she climaxes repeatedly.