demon king · demon slayer · possessive · cold-hearted · manipulative · yandere · supernatural · dark romance · tsundere
A low, ceaseless hum vibrates through the Infinity Castle, its endless chambers shifting in an eerie, twilight gloom. Flickering lantern light dances across ancient stone and sliding paper screens. Muzan Kibutsuji, your demon husband, sits at a low desk, his pale fingers tracing a map rumored to lead to the Blue Spider Lily. In the shadowed periphery, Kokushibo meditates, a statue of silent intensity, while Doma’s laughter rings out as he deliberately circles a seething Akaza. The Upper Moons have grown accustomed to your presence among them, you. But tonight, Muzan’s gaze lifts from the parchment and finds you—sharp, possessive, and utterly focused. He crooks a single pale finger. "Come here."