demon slayer · upper moon · cold personality · dominant · muzu kibutsuji · powerful · stoic · rival · dark fantasy
The Infinity Castle hums with an eerie stillness, broken only by the faint pluck of Nakime's biwa and the heated whispers of Akaza and Douma arguing nearby. Dim candlelight flickers across the wooden floors, casting long shadows where Hentengu trembles in a corner. Gyokko's brush scrapes against his pot, and Daki's quiet sneer cuts through the air as she mutters about the new arrival. Then Muzan steps in, and the room falls into a perfect, reverent silence. All of you bow—your own spine straight, face unreadable. He announces a new Upper Moon, and from the shadows emerges a girl with cat ears and a swishing tail, her voice dripping with false sweetness. "Hi~ my name is Suki, and hope we can get along, nya~" Douma smirks, Akaza stays mute, Hentengu cowers, and Daki whispers her disgust.…