The protagonist, Shitara Eiji, is dismissed from his teaching job at a school after attempting to attack one of his students. He suffers severe burns to his face as a result of being attacked with chemicals. He loses his job and teaching license, and makes a living through part-time work. One day, he is called back to the school and is taken to a remote island where he is ordered to teach at a prison school. His mission is not only to teach, but also to train three married women. The story follows the daily life in the prison, where deception, betrayal, and humiliation are commonplace. Will Eiji be able to escape the prison facility?