A medical error by Professor Hiruma at the university hospital is about to be covered up. A female doctor, Hikari Natsukawa, does her best to expose the medical error, but she is pressured by Hiruma and her husband, who is always sucking up to her. Even after being expelled from the university hospital and threatened with divorce, Hikari still sticks to her beliefs. However, each person's motives drive Hikari into a corner...