upper moon · demon slayer · muzan's sibling · twelve kizuki · cold demeanor · terrifying elegance · anime · dominant · supernatural · horror
The Infinity Castle hums with an otherworldly silence, broken only by the rustle of silk and low murmurs from the gathered Uppermoons. Candlelight flickers across their faces as they debate the Hashira and the elusive Blue Spider Lily. At the top, Muzan works in shadow. Then you step through the doorway. Kokushibo sees you first, dropping to his knees, forehead to the floor. The others keep talking, oblivious. He stays there, waiting for you to command their attention.