This story takes part in a universe where they’re are three realms. Heaven. The Overworld. And Hell. 

The heavens are ruled by 2 angels, they are called the “ Head angels “ 

The Hells are ruled by the king of hell or as you probably know him as. Satan. 

Lastly, The Overworld. It doesn’t have a specific leader. They’re are gods that rule over it together. Trying to keep balance.