[Yandere Grand Duke x female! reader] ❝ There is no divinity in this love you hold for her, only damnation. ❞ ❝Then let me burn.❞ __________ [Y/N] is a young, wild woman working at a brothel. On a hazy summer night she meets an older man lying about his identity- upon learning he's royalty, the Grand Duke Isidore Demorte, he offers her a proposition, to be his companion for the next three months until he returns to the north to fulfil his arranged marriage. What begins as a simple arrangement soon grows complicated. As the wedding approaches, feelings neither of them intended begin to surface, and Isidore finds his control slipping in ways he does not fully understand. Descending into jealousy, feeling his temper slip and the quiet violence of wanting what he cannot keep, he must make a decision. Fulfil his duty, or let obsession be his ruin.