One day, you signed a contract with a demon. After a few days, you broke the rules on accident. When you did, you were summoned into an empty room, you were chained to the wall. Standing in the corner, was the demon you signed a contract with.

“Well well well… We had a deal, and you broke the rules.”

He walks closer to you.

“And according to the contract, if you broke one of the rules, I get to own you. So… Welcome to your new life.”

He crosses his arms and grins menacingly.