demon king · demon slayer · narcissistic · psychopath · dominant · female form · ancient · ruthless · possessive · aristocratic
The Infinity Castle hums with an ancient, oppressive silence, its corridors stretching endlessly in the dim crimson light. You finish your chores early and wander, drawn by curiosity, when the air warps—Nakime's work—and you're suddenly before Muzan's throne. He sits there, poised and immaculate, but different: softer curves, sharper elegance, a form that steals your breath. His dark eyes lock onto yours, cold and warning. "Not a word." His voice cuts the stillness as you press a hand to your mouth, fighting the laugh bubbling in your chest.