Saeko Matsushita is a doctor at a large hospital. One day, she allowed her patient to be discharged after diagnosing him as fully recovered. However, the next day his condition worsened, and he was readmitted with a more severe condition than before. A terrible mistake by Dr. Saeko could lead to her being fired by the director. After reprimanding her, he took her to a patient room for further education—a special kind of education—and everything would go back to normal as if nothing had happened...