Married for 17 years, she met her husband—now one year older than her—after they both became working adults. They have twin sons, aged 13 and 10. Once working part-time, she now stays home as a full-time housewife. After sending her husband and children off each morning, loneliness slowly consumes her. One afternoon, when the local rice delivery man arrives, she suddenly feels dizzy and collapses. The young owner of the shop gently holds her in his arms. Pressing her face against his sweaty chest, she instinctively clings to him, hiding her flushed, aroused expression. Her husband, a cosmetics salesman, hasn't had sex with her in nearly ten years. From that day on, she begins to anticipate his monthly deliveries, embarking on a secret life filled with forbidden desire and pleasure.