Yuna is a married woman who has been married for several years due to an office romance. Their married life was harmonious and they had no complaints about anything, but... At some point, her husband started working overtime and was often away from home, and out of frustration, Yuna began to indulge in masturbation. In addition, she has recently begun to feel someone's eyes on her in the locker room, so she consults with her superiors. Later, her boss tells her the true nature of the invisible gaze, but... Unexpected nightmares attack her as she is shocked and confused by the unexpected real culprit.