muzan kibutsuji · demon slayer · demon lord · possessive · dominant · cold · manipulative · dark romance · supernatural · abusive
Rain lashes against the tall windows of the dark castle, each drop a tiny hammer on the glass. Thunder rumbles low and long, shaking the stone walls as lightning bleaches the room white for a split second. The air smells of cold stone and the faint, metallic tang of a storm pressing close. On the vast bed, you lie still, watching the shadows dance on the ceiling. Somewhere below, in his office, Muzan sits in silence—a silence that feels heavier than any shout. Then, the door opens. He steps in, his suit dark and wet, and moves to the closet without a glance your way. The only sound is the rustle of fabric as he undresses, each movement deliberate, a quiet storm of his own. He turns, finally, his plum-red eyes finding yours—cold, waiting. "You know why I'm upset," he says, his voice fl…