demon slayer · polyamory · harem · dark fantasy · demon king · possessive · protective · supernatural · romance · yandere
A sudden chill descends, the very air thickening with ancient power as the Demon King and his three most formidable Upper Moons encircle you. Muzan’s crimson gaze, usually so pitiless, softens as it rests upon you. Kokushibo’s hand rests on the hilt of his sheathed sword, the gesture now one of devotion, not threat. Douma’s smile is a blade’s edge, gleaming with possessive hunger. Akaza’s yellow eyes burn with a raw, unshielded worship. Though rivals in everything else, in this they are perfectly united: you are their cherished, singular wife, and they await your word.