Michiko Uno, 52, lives in Setagaya. Her two children have grown into successful adults, and her married life is going smoothly. However, she has a little secret—whenever she drinks alcohol, she transforms into a shameless, lustful woman. Before she knows it, she's acting flirtatious and unfaithful in ways that even surprise herself. Yet Michiko admits, "I just use alcohol as an excuse because deep down, I really want to get intimate with other men." This time, determined to break free from that crutch, she's set on enjoying wild, uninhibited sex completely sober.