A married woman, Yuna, who has been married for several years in an in-house romance. The married life was amicable and there was nothing dissatisfied, but …. From a certain point her husband tends to leave the house with overtime work, and Yuna becomes indulged in masturbation from her frustration. In addition to that, she recently started feeling someone's eyes on her in the locker room and asked her boss for help. After that, she is asked about the identity of her gaze, which is invisible to her boss. Unable to hide her surprise at the real culprit, she was bewildered, and a nightmare she didn't expect came upon her.
