A hot spring trip for just the two of us, a man and a woman who indulge in lust and pleasure against each other's bodies... - Akina (tentative name), 35 years old, cosmetics salesperson. - "I want stimulation. Stimulation that I don't normally experience..." A mature woman who was forbidden from dating men and women at her junior high school and all-girls school due to her parents' wishes. - She had her first relationship during her university days, but her second romance came after she worked at a cosmetics manufacturer. - He proposed to me, but I refused...I still have no desire to get married. - However, while I was searching for romance and stimulation, I couldn't forget the extraordinary experience I had at the age of 30. - ``Before I knew it, I wanted to have that kind of experience with people I didn't know...'' A mature woman seeking new stimulation goes on a trip with a man she meets for the first time. - A mature woman who exalts her plump body is intoxicated with extraordinary pleasure.