The film depicts the story of Machiko, a 48-year-old part-time worker, who gets lured into the pleasure of an affair by her junior at the gym. Some say she resembles Yumiko Sakura? However, the mature woman with a plump body and large breasts showcases a captivating eroticism. The sight of the protagonist, a married woman, indulging in pleasure with someone else's manhood is irresistible.