She is the beloved heiress of a wealthy family, spoiled and doted on by everyone, haughty and willful. He is the son of her family’s nanny, low-born yet exceptionally talented, and the object of many girls’ secret affections. She is his princess, the girl he swore to cherish for the rest of his life from the moment he first saw her. But she is also the daughter of the man who killed his father. To avenge his father, he plots carefully, approaching her little by little and slowly winning her heart, until she falls for him completely. In the end, he leaves her with nothing.