What is the difference between the human world and the demon world?
Aside from culture, world structure and environment, there is not much difference between the human world and the demon world.
Also, there is one difference that I like to add,
Demon World has a heteromorphic spice.
For example, the Boros family. Their appearance resembles a demonic dragon.
However, there is a clear difference between low-ranking demons and high-ranking demons in terms of appearance.
Also, there is one major factor that should not be ignored.
High-ranking demons, mostly noble demons have 'Marking' on their bodies.
In simple words a 'Tattoo'.
This 'Tattoo' is on their body since they at born.
Each tattoo has different meanings and belongs to different demon gods.
'I also have a tattoo.'
But I don't demon god tattoo, is it?