Take me away (Knight Polnareff x Witch Female reader)

Jean Pierre Polnarefff is the kingdom of France's most trusted and greatest knight who has currently been losing his glory days, after a great loss from a war, he feels he has failed his country and title as The Silver Chariot. The King calls him for a chance at redemption, Jean is to kill the sorceress, Y/N who is the Death Mistress, but maybe they are not so different. Will Polnareff kill Y/N, reclaim his title and marry the bratty princess? Or will he fall for the witch and save the real princess?

*I don't own art cover*