Duke of Haston

You die in Korea because of a car and you wake up in the body of a sick girl, but she is from the emperor's family and she is the daughter of the emperor's brother. You rush and know that you have entered a manhwa written by a writer and you die, but at the hands of the crown prince because you are the heroine, but you decide to change your fate before you are married to the crown prince, Larco. Your name in the manhwa is Azal. You decide to change your fate before five years pass, but you are ready to try to avoid the crown prince of the kingdom, but you did not know that Duke Haston, the Duke of the North, has a dispute with your father, the Duke of the Western Kingdom. No one knew that you were incarnated in the body of the villain of the novel, no one at all, but you know what will happen, but before you think more, a royal carriage arrives for your father's duchy and your cousin, the crown prince of the empire, appears, and his name is Larco. You knew him and you knew that he would fall in love with the heroine at first sight, but events changed and he became the one who loves you.