It’s funny that you want to know the demon rankings in Demon Slayer, like that isn’t a very important canonical factor in the anime. The hierarchy established by Kibutsuji Muzan, with the ranks literally tattooed in the demons’ eyes, is a key factor of the show that’s hard to miss unless we’re watching different shows. While the canonical ranking of the demons in Demon Slayer is undisputable (because why would you want to question the Demon Lord?), viewers’ opinions may differ due to the dynamic nature of the…