40-year-old Yukari Fujisaki has been married for 17 years, and after childbirth, the frequency of sex gradually decreased. Back when she was younger, she quickly had children after marriage and worked hard to maintain her body, but as she aged, her libido began to grow stronger. While she's tried to relieve her desires through masturbation, her husband's small penis no longer satisfies her or provides the stimulation she craves. She longs to have a big dick thrust deep inside her, yearning for the intense sensation of being pounded against the deepest part of her womb, and desires to climax over and over again.