Sayo had been covering the debts her son-in-law accumulated through gambling. One day, when Sayo pressed him for repayment, he became enraged and forced her into performing oral sex. However, this experience awakened the dormant "woman" within Sayo. She began seeking men on her own, indulging in sex with men other than her husband, and greedily pursuing pleasure. Sayo descended into becoming a tainted married woman.