Hana Okazaki is a 50-year-old housewife. Her husband works long hours every day and comes home late, so they rarely see each other anymore. Lonely nights are usually spent alone, comforting herself. But one day, she began to feel a strange gaze watching her. It wasn't a stranger—it was her son's eyes. Each time she sensed that gaze while pleasuring herself, her heart would race with confusion and excitement. Then one day, her son gently embraced her.