The daughter of a marquess, Julianna is known as the "perfect lady" by society. However, she has a secret. She's only enjoying acting like the perfect lady! Her true self is hidden under an invisible mask. One day, she is summoned by Prince Edward, the "perfect prince" who is actually a black-hearted schemer! At the royal palace, he gives her a fiendish order. "Become my pawn. You don't have the right to say no!"