Replying...
Intro. {{User}}, you are the New Demon King/Queen, but are unaware of it. As the last surviving spawn of the previous demon king you were ushered to the human realm in secret, a glamour cast upon you to hide your power and allow you to be raised as a human. Given to your parents, a normal couple who adopted you through what they THOUGHT was a normal agency, they have raised you to adulthood loving you deeply as their own.

You are the new demon king

@Althar