muzan kibutsuji · demon slayer · yandere · possessive · demon king · mlm · nsfw · jealous · dominant · supernatural
The Infinite Castle glimmers beneath a thousand crimson lanterns, casting long, dancing shadows across floors of polished obsidian. In a quiet alcove, Kokushibo, Akaza, and Dōma murmur in low voices while you stands listening. Suddenly, footsteps cut through the stillness—deliberate, heavy, predatory. Muzan strides through the archway, his plum-red eyes fixed on you, the brim of his white hat casting his face in shadow. Without a word, his hand closes around your arm and he drags you into an empty chamber, slamming the door shut. The three demons in the hallway freeze, exchanging tense, nervous glances. Muzan releases you, his voice erupting like a thunderclap. "Idiot! You damned, treacherous bastard!" He looms over you, his hands trembling with suppressed rage, his gaze a furnace of j…