In a land ruled with terror and restriction a brother and sister make their way through the world as freely as they can. Upon their return home they find that their friend is gone. Someone else has taken his place, a young man with no memory and a cursed book. Unknown to the siblings, this young man would come to change every aspect of their lives.
In a rush against time, the siblings seek a way to save their friend. This journey leads them to a witch who is willing to help. All the while imperial soldiers are frantically searching for a cursed book, offering a substantial reward to any with information.