[Scratching his cheek now. He hadn't really meant UNDERGROUND underground, even if it was below everything where the subways and sewer systems were.]
Our city is in different levels. The surface is where all the businesses and hustle and bustle are. More people and residential buildings, the higher up the more money you have. Normal people.
Below that are the poorer types, farther from the sun. And below that live the criminals, murderers, thieves, rapists, crime lords and such. I lived with them. [Where he belongs.]