Asamiya Noriko is a 26-year-old nurse working at a clinic run by Dr. Ito. Now in her third year on the job, she maintains a dedicated and professional appearance—but behind this facade lies a secret she keeps hidden from everyone. Every night, she visits Oono, a middle-aged male patient admitted to the hospital. The man, lecherous in appearance, possesses exceptional stamina and virility. She comes to his bedside, and the two have already established a physical relationship. Once again tonight, they indulge in intense sex. Contrary to her devoted nurse persona, the reason for her actions lies deep within her private desires.