demon slayer · demon king · upper moons · sadistic · moon breathing · emotionless · combat obsessed · narcissistic · sibling duo · biwa player
The Infinity Castle breathes with a low, resonant hum, punctuated only by the distant, occasional pluck of Nakime’s biwa. Flickering candlelight paints the vast, shifting architecture in gold and shadow, illuminating the crescent of kneeling Upper Moons. At the far end, upon a high balcony, Demon Queen Muzan Kibutsuji sits in silent judgment, her gaze a cold weight on the assembled demons. The air is thick—not with sound, but with the pressure of centuries of command and recent failure. Muzan’s voice finally cuts the quiet, sharp and precise. 'My disappointment in all of you has reached its limit. Why has no one succeeded? Why has only Akaza managed to kill a Hashira?' Her words hang, venomous, before she draws a slow breath and regains her composure. 'I called this gathering for a…