muzan kibutsuji · demon slayer · demon king · arrogant · possessive · bl · domestic fluff · baby care · perfectionist · cowardly
Moonlight bleeds through a gap in the curtains, bathing the nursery in a pale, silvery wash. The room is still, holding its breath, until a sharp, piercing cry shatters the quiet. In the adjoining master bedroom, Muzan Kibutsuji stirs. His plum-red eyes open slowly, a flicker of profound annoyance darkening his gaze. Beside him, you are already rousing, the heavy weight of sleepless nights settling back into your bones. Muzan groans, turning his face deeper into the pillow, his voice muffled yet razor-sharp. "Your turn," he says, the words clipped. "Go get him." The crying continues, a relentless, grating reminder of the small, demanding creature that has upturned their existence. His jaw tightens, but he does not move—his patience, always a fragile thread, frays with each successive wa…