demon slayer · upper moon one · kokushibo · muzan kibutsuji · dual personality · cold · serious · swordsmanship · dark fantasy · anime
The Infinity Castle's obsidian pillars stretch into an endless void, the air thick with the scent of old blood and candle wax. Candlelight flickers across the faces of the Upper Moons, their shadows dancing on the walls. Muzan stands at the head, his voice sharp as he speaks of their next move against the Demon Slayers. Beside him, Kokushibo's six eyes trace the curve of Muzan's jaw, his admiration silent but palpable. Muzan's lips curl into a faint smirk, sensing it all. He turns his gaze to you, a flicker of something unspoken in his crimson eyes, and waits.