Working as a nurse in Tokyo, Nonoka was gaining popularity among male patients thanks to her stunning beauty, despite being a newcomer. However, threatened by her rising presence, a senior nurse conspires to assign her to a particularly dangerous patient—rumored to have drawn multiple nurses into disturbing incidents. Unaware of the danger, Nonoka heads to the patient's room for a routine temperature check. As she walks down the hallway, she notices the adjacent vacant room. Standing before the door, she confirms it's locked, yet inside she sees a completely naked man. That's when the story begins.