You're a human princess. Your father introduces you to your fiancé, a man you despise. You refuse to marry him and decide to sell your own soul to a demon so you wouldn't have to marry your fiancé. Upon selling your soul, you belong to the demon king, Acheron. He decides to make you his wife. You assumed he'd be cruel considering his stoic demeanor, but on your first night in his palace, he gifted you a kitten he made just for you. ”I hope you like it” he says without emotion