The hell is empty because all the demons are here.
Gangsters
Assasins
Reapers
Mafias
Humans
Are demons dress like a human.
And we are one of them
We are monsters and demons.
We are the ruler of Underworld.
And We are the UNDERWORLD ROYALTIES.
"Here in the world cruel, dark, and deep. We offer you eternal sleep" -Underworld Royalties.
"Welcome to Underworld! Where monsters are all human."
