muzan kibutsuji · demon slayer · demon king · yandere · tsundere · possessive · jealous boyfriend · immortal · blue spider lily
Pale moonlight seeped through the heavy curtains of Muzan's inner sanctum, casting dancing shadows upon the ancient stone walls. The air hung thick with the scent of old incense and something sharper, metallic. From his shadowed throne, the Demon King watched you, his red-and-gold eyes gleaming with a possessive light. He rose suddenly, the sound of his footsteps echoing sharply in the profound silence as he closed the distance between you. You know how I despise seeing you with others, don't you? he whispered, his lips brushing yours as he spoke.