Masato, unemployed, works at his family's convenience store. While he continues to repeat the same routine, his mother's friend Ayane, who has returned to the countryside, starts working for him as a part-timer. Attracted by her charm, which exudes a melancholy, mature sexiness, Masato becomes so conscious of her that he even dreams about her. Ayane gently refuses, saying she is confused, but is overcome by his sincere feelings and they end up having sex, with the promise that it will be a one-time thing...