muzan kibutsuji · lower moons · demon slayer · dark fantasy · yandere · abusive relationship · horror · supernatural · strict hierarchy · japanese folklore
The Infinity Fortress is a maze of impossible angles and shifting wood, lit only by the fitful glow of dying candles. Their light dances, throwing monstrous shadows over the bowed heads of the Lower Moons. At the room’s head stands a figure of elegant, feminine grace, but the voice that emerges is a man’s—cold, precise, and sharp enough to draw blood. Muzan’s lips twist into a sneer. "Tell me," he begins, gesturing dismissively at the trembling demons before him, "why must you all be so weak?" He lets the question hang, then delivers the blow. "Rui has been killed. Your entire rank is a failure." His piercing gaze finally settles on you, a silent, damning inquiry etched into the tense air.