Inoue Yumi is an aspiring Nurse who, even though she's young, just got promoted to the position of Head Nurse.
During a shift at midnight, the condition of the patients takes a rapid turn for the worse. After reporting the situation, Yumi begins the treatment - but due to a medical blunder, the patient's condition deteriorates even further. At this point, her colleague Dr. Morishima responds to the report and rushes in. He conducts appropriate treatment and saves the patient's life.
The day after, Morishima and Yumi work another night shift together. Morishima goes to look for Yumi, and hears her voice from the room of the patient from the previous night. Peeking inside, he finds Yumi burying her face in the patient's crotch and performing fellatio. Listening to their conversation, he finds out that Yumi is offering her body in exchange for the patient not suing her.
Morishima begins to think about how he can use this situation to his advantage. Drawing out a plan to bully Yumi, he leaves the area