This drama is adapted from the novel of the same name by Mikito Chinen. It tells the story of Mio Sakuraba, a rookie assigned to the general surgery department of a prestigious university. She is neither a doctor nor a nurse. She is a powerful nurse assistant who saves the hearts of patients at the edge of the medical scene that is closest to the patients. Some doctors and nurses keep their distance from her, and the senior nurse assistants are helpless against her. In front of such Mio, a handsome surgeon Ryugasaki Taiga with genius operating skills appears. As a medical otaku, Mio's respect for Taiga rises sharply. However, the cold Taiga, who believes that the technique of successfully performing an operation is everything for a doctor, conflicts with Mio who puts the patient's feelings first. Then, how will the relationship between Mio, who works hard with all her heart, and Taiga, who is completely opposite, develop?