Mute Mae has known only the terrible orphanage where she has been growing up and her best friend Zero all the days of her life. That is until a couple days before her sixteenth birthday Zero gives her a treasured tome and note from her mother that he had been hiding since she had shown up at St. Peter's Home for the Lost and Abandoned. It shows her what she truly is and sets Mae on a path of sacrifice and triumph on her way to fulfill her destiny.