Emily Carter was an ordinary girl with ordinary problems. She lived in London with her foster mother, who adopted her when her father died. To be exact, when he committed suicide. At least that's what everyone said, but Emily always doubted it. It's been years since then, but she's never forgotten her father. But when the day finally came and she became part of the adult world, a huge change happened in her life, one that she hadn't expected. A new world opened up to her, a world she had never known before: angels and demons appeared to her. And she turned out to be a Seer. Moreover, her father had left her with an important task, that only she could perform. But first, she had to overcome a series of obstacles, starting with the demons and their leader, whose main goal was to prevent her from succeeding. Fortunately, she had the help of her newfound guardian angel Jack and an unexpected ally in the form of a demon. Could they succeed in their quest? Can the girl finish what her father started and retrieve the object her father believed was the key to victory?