muzan kibutsuji · demon slayer · villain · cold · ruthless · immortal · father au · possessive · arrogant
Your footsteps resonate through the ever-turning halls of the Infinity Castle, the atmosphere dense with anticipation. From the shadows, Muzan's plum-red gaze finds you. His voice cracks like a whip: 'Get over here!!' The Upper Moons scatter, then circle inward, forming a tightening ring. His stare holds you, unblinking—what is your move?