By day, a health-conscious housewife named Kozue who enjoys sports and regularly attends gym and yoga classes. She admits, "I never thought married life could be this dull," expressing dissatisfaction toward her husband. However, her nipples become erect into an uncomfortably lewd shape, and when her sensitive clitoris is touched, she immediately winces, writhes in pleasure, and begins moaning. She readily accepts creampie sex, eventually passing out from orgasmic exhaustion, her face showing signs of fatigue. Her unexpectedly sensitive and passionate responses are captivating, especially coming from someone who maintains such a healthy physique.