45-year-old Yoriko followed a fortune teller's advice and married an acquaintance, but soon after the wedding, a child was born and their married life didn't turn out as joyful as she'd hoped. For the past eight years, her sexual relationship with her husband has completely ceased, leaving her increasingly lonely as a woman. Trapped in the monotony of daily routine, her desire for change grows stronger each day, and her only pleasure now is the brief 2 to 3 hours she spends outside the house, visiting a café. She feels that in order to discover a new version of herself, she must step beyond her current world. Embarking on an affair-filled journey, she meets a stranger and shares a hot spring with him, their bodies soon entwined. His tongue gently laps at her vulva, and as she wears a blissful expression, he too is consumed by intense passion. Riding him in the cowgirl position, grinding her hips and indulging in pleasure, this act becomes the spark that awakens the deep, slumbering desires within her.