Ben has always felt like he was king of the world. He's never given a thought about anybody but himself. So when his new history lecturer comes along and tries to dominate him, best believe he fight back. But soon the truth is revealed and Ben learns he's not a king but a queen, and not of the world but of the underworld. Then things start to get interesting and Ben goes from sarcastic and sassy to submissive and sweet with just one touch of Tobias Caste. But that's just what happens when you're the mate of a demon king....who happens to be your teacher.