This story follows Miyuki, a woman trapped in a verbally and emotionally abusive marriage with her husband, Atsuzawa. He constantly belittles her, both as a wife and as a colleague at work, making her feel useless and ashamed. Her situation is noticed by a sympathetic coworker, Kurosu, who confronts her about the abuse and confesses his feelings for her. This leads to a passionate affair where Miyuki finds the affection and validation she has been missing, culminating in her decision to leave her husband and plan a future with Kurosu.