Amy is a fourteen-year-old girl. Her life changes when her mother tells her, that both of them are witches. At first sight, Amy is very pleased with herself, but her glory was short-lived, because her mother gets killed by two men. Luckily, this doesn't mean that Amy can't see her anymore. One day, Amy decides to leave the human world, and wants to become a demon hunter. She needs to go to a school called 'Sworn by heart'. Amy is a very good student, and she is very fast, ready to face the real world. Her target for the rest of her life is to protect the princess, or at least, she hopes to, because the princess in person chooses her own guardian. When Amy is finally selected as the princess guardian, she ends up in a very strict and hard world. She also gets a lot of stress, and if she wants to continue living, she needs to do everything people expect her to do. Of course, this won't last much longer. Amy decides to return to the human world, together with the princess, because she and the princess have become very close friends, they even have a strange bond between them, which is very rare. Once mixed up with the humans, Amy understands, that they aren't the only ones that have returned tho the humans, there are some other guys who would like their princess home again. Amy thought that she wasn't getting into any trouble, doing this, but now she understands what she has really done...
Liviana is the princess of The Underworld. But she wants to be a normal girl. She has everything that any girl could ever ask for. A palace, tons of clothes, wings that can take her anywhere, a father who would raise Hell for her, literally, and a loyal bestfriend/bodyguard. What more could a girl want? But there's one thing she doesn't have. Freedom. Liv knows it's her duty to become queen of The Underworld, but she dreads her royal duties.
On her 18th birthday, a new enemy threatens to kill whoever tries to stop him from taking Liv. But before he can get her, an old family friend shares some secrets about Liv, that she didn't even know about herself, and helps Liv escape to the human world until it is safe. She must act like a normal teenager. That cant be hard right? Wrong.
With new powers and a new romance, can she learn how to master them before he finds her? Will she be able to save her kingdom, her life and the lives of her loved ones? Or is the threat too much for the princess?