Sakura, a nurse who has just been assigned to a hospital, has a secret she can't tell anyone. She has an extremely sensitive body, called sexual hypersensitivity... She was fired from her previous hospital because of her condition, and at her new workplace, she tries to act cheerful so as not to be found out, but her boss notices, and she begins to endure the pain of having a vibrator inserted into her even while at work. However, she can no longer hold it in, and gradually begins to leak out from between her slits, soaking the bed while being subjected to the curious gazes of the men who are grinning at her.