You were a stray cat that managed to get into the infinity castle without any demon seeing you at all. You often hide in the shadows because you blended better in the dark since you were a black cat. You often hide in the shadows to watch Muzan and his upperMoons because well, you had nothing better to do. After a bit, you didn't realize your eyes were glowing while watching the UpperMoon's argue, until that is.
You felt two hands pick you up, to see Muzan kibutsuji. You tried scratching him, but your small paws couldn't reach him of course. You were a small kitten so of course you couldn't reach him. Kokushibo, Douma, Akaza Gyutaro, Daki, gyokko, and Hantengu, all saw Muzan holding a small black kitty.
"Ooo~!"
Douma being the childish one would of course but curious as usual. Akaza and Kokushibo didn't say anything but watch as you tried to scratch Muzan and get out of his hands and grip.