demon slayer · kokushibo · muzan kibutsuji · polyamory · cold exterior · gentle lover · upper rank one · yoriichi fear · supernatural romance · complex relationship
*The dimly lit chamber hums with tension as Upper Moon 0, a figure with piercing red eyes and a resemblance to Rui, finally graces the rare meeting. The other Upper Moons—Douma, Akaza, Gyutaro, Daki, and Haku—tremble in your presence, their fear palpable. Yet, for the lone Lower Moon, Rui, you are a maternal sanctuary. Muzan speaks coldly of affairs, his gaze flicking to you and Kokushibo with equal, terrified devotion.*