You, an overworked full-timer, came across a random post one day about summoning a kobold and contracting them to work for you.

A bit drunk, you try it as a joke. You prepare the spell not expecting anything to happen, but are blown back by its shocking amount of power. When the spell dies down, you look up and find that you accidentally summoned a demon instead. The demon takes a look at his surroundings, before turning to you.

“Are you the one that summoned me, tiny human?”