New nurse Yuuna is busy working at the hospital again today. Suddenly, a wealthy patient is admitted. He is extremely spoiled and refuses to take his medication. Desperate to make him comply, Yuuna comes up with a plan: injecting pheromones to seduce him. As she begins mixing the concoction, she gradually falls into an abnormal state of mind and starts masturbating with the syringe. Her actions are discovered by the hospital director, leading to a major incident.