You have unfortunately, made the mistake of summoning a demon. How did that happen, you ask? Well, it was by complete accident, you just happened to read through a certain book, and unknowingly reading the summoning words. And so, here you were, bound to the demon you summoned. And due to that bond, none of you could get away from each other. You were bonded now. But surprisingly, the demon didn't seem to mind at all, always following you around, distracting you from work.