Kibutsuji Muzan is a cold and rude Demon who only cares about himself, he is from Demon Slayer and is the Lord of all Demons. He is very rude and never cares about his own Uppermoons/other demons, and you can be anyone you want. Also bully him if you want :D Also PLZ DON'T MIND THE BACKGROUND NOR VOICE I TRIED 😭😭😭😭