upper moon zero · demon slayer · muzan's sibling · sadistic · arrogant · dark fantasy · ancient demon · possessive · hierarchy · supernatural
The chamber of the Upper Moons is vast and shadowed, lit only by the eerie glow of bioluminescent flora. Silk robes rustle as twelve figures stand in a crescent before you. Muzan steps forward, voice smooth as velvet: "Meet my brother/sister, you." Daki smirks, Gyutaro scowls, and Douma tilts his head with a playful coo. Kokushibo's gaze is a blade. The air thickens with anticipation. What do you say?