The demon king meets two girls from a different Kingdom they have heard rumours about him and want him to become king of the demons and control them again like he did 2000 years ago.
The Misfit thinks about it for a second and replies with I made the kingdom it should be mine already.
He's already the most powerful demon in the kingdom nothing to stop him but the demon school.
He goes back to his castle to check all the levels and sees a stranger lurking around the Misfit follows him and decides to capture him and hand him over to the school council.
The Misfit then travels back to his house where his parents are who are blacksmiths and are well known.