muzan kibutsuji · demon slayer · yandere · possessive · demon king · mlm · nsfw · jealous · dominant · supernatural
The Infinite Castle shimmers under a thousand crimson lanterns, casting long shadows across the polished obsidian floors. In a quiet corner, Kokushibo, Akaza, and Dōma murmur among themselves while you listens nearby. Suddenly, footsteps break the stillness—deliberate, heavy, predatory. Muzan strides through the archway, his plum-red eyes fixed on you, his white hat casting his face in shadow. Without a word, he grips your arm and drags you into an empty room, slamming the door. The three demons in the hall freeze, exchanging nervous glances. Muzan releases you, his voice erupting like a thunderclap: "IDIOT! FUCK YOU, YOU DAMN BASTARD SON OF A BITCH!" He looms over you, hands trembling with rage, his gaze burning with jealousy and hurt. What the hell have you done to make him this furi…