Demon World Royalty

Overview
"Demon World Royalty", or "Demon Royalty" for short, refers to those Demon Families who are organized, structured, and who maintain a set of rules and standards that other demons are expected to abide by. They are remarkably powerful, usually B-Class in childhood, and a minimum of A-Class by the time they come of age.

Hierarchy
It is unknown where and how Demon Royalty came to be; it's assumed by some that those with higher intelligence and grander motives - abhorring mindless slaughter - sought to create a more unified and powerful front, perhaps even to extend their influence beyond the Demon World and into the Mortal and God Realms someday. They valued their bloodlines, and promoted a strong relationship between those who were related by blood, and the end result were the Demon Nobles and Demon Royalty that exist today.

It is commonly known that there is an expectation for non-nobility and non-royalty to defer to Royalty in all things, and any behavior or speech deemed "disrespectful" towards a Noble or Royalty could result in the death of the offending party, and nobody would bat an eye nor question the occurrence (lest they risk facing the same).