Kim Kibum, or Key, as he prefers to be called, is a beautiful boy with a broken life. Ever since the age of thirteen, he has been trapped in a relentlessly abusive household. He knows how to keep his composure, and his mental strength is unbreakable, but, as time passes, he begins to feel more and more alone. When his parents decide to move to a new city, he can only hope that the change of location will improve his situation. The abuse, however, only increases.