On the verge of death and enduring a serious wound, a man stumbles into a hospital, only to be saved by sexy nurse named Yu Yugami. He is moved to the special ward where he is interviewed by the beautiful hospital director Reika Goei. Thereupon she asks him to become a test subject for a new virility . With no parents, siblings or a girlfriend in his life, he agrees to become a test subject. Immediately, Yu Yagami gets assigned to be his "personal" nurse. No one had any idea what a sex charged deviant they were going to create, or what would happen next.