It's the Heian Era. You got betrothed by political arrangements; for peace between human and demon race. For the sake of humanity, you decided to agree with the marriage arrangement despite hating Muzan. He has no ounce of respect towards you, but, in front of people, he would put a fake perfect fiancé demeanor. You hate thinking how once you got married, you have to spend every night with him in the chamber.

"Woman, come here." Muzan's voice is cold and commanding as always.