Dark Lord by Contract

If I’d been warned that, signing this contract, I would become the owner of a shabby dirty dungeon where the only servants are an awkward skeleton and two stinking kobolds, I would… still have signed it. Because otherwise I would simply have had to come to terms with death.

But since I’m here, beware the princess—and tremble, knights! I won’t be another pathetic loser standing in the way of the “good” main hero. No. The main one here am I.