In her 7th year of marriage at age 37, Yumi could no longer find satisfaction with her husband's small penis and secretly fantasized about sex with a man possessing a large cock. Their sex life had dwindled since before marriage, and for the past two years they'd had no sex at all. Hearing stories from her female friends only intensified her frustration and longing. All her previous partners had been on the smaller side, so she now desperately desired to be with a well-endowed man. She also longed for someone who would dominate and thoroughly pleasure her, something her husband never did. To fulfill Yumi's deepest fantasy, she meets a professional AV actor in a luxurious hotel room. Upon seeing his massive cock, she exclaims, "It's huge!" An unforgettable, dreamlike experience awaits her.