26-year-old Maho is married to a husband 21 years her senior, but she feels unsatisfied and stressed by their sex life despite their financial stability. Even before they officially registered their marriage, she felt somewhat disappointed, but chose to marry him out of fear that "if I let go of this chance, I might never have another." However, her 47-year-old older husband fails to provide the kind of stimulation her body craves, and her daily exhaustion continues to grow. Longing to experience passionate, carefree sex like she did back in her single days, Maho seeks excitement. On a footbridge, inside a car, and later in a hotel, she indulges in thrilling encounters, finally feeling liberated and fulfilled like never before.