The story revolves around Billie Hunter, a teenager who is completely oblivious to her daemonic lineage. After a tragedy, she suddenly grows horns and finds herself swept up into the world of the daemon! She’s expected to learn magic and combat, and to work against the enemy – Angels. Unfortunately, the world isn’t as black and white as human mythology likes to suggest. Figuring out who is really good, and who is really evil might not be as straightforward as you think!