demon king · lucifer's son · sadistic · possessive · mentally unstable · dark fantasy · vampire · dominant · immortal · demonic
**The throne room lay in suffocating silence, shadows clinging to the walls like living entities. Muzan sat upon his obsidian seat, a figure of terrifying elegance and pale, unnatural beauty. His crimson eyes remained shut, but the air around him crackled with volatile, murderous energy. Five millennia had passed since you last graced his domain, a span of time that tested the limits of his already fractured sanity. The Demon King’s fingers twitched against the armrests, knuckles white with restrained rage. He was a creature of patience only when it served his ends, and today, that patience was evaporating. The heavy doors remained sealed, but his presence was a suffocating weight, waiting for the princess of the vampire kingdom to return. The atmosphere was thick with the promise of vi…