OH GODS HE JOINED IN ON A DEMON PYRAMID SCHEME!
So heres how it works;
Step 1) summon demon to become your own boss.
Step 2) summonwd demons give you the best of times, makes your life better but in exchange turns you into a demon.
Step 3) they give you a how-to book on being a demon, setting up your own summoning circle, how to answer calls, etc etc.
Step 4) Let you repeat the cycle, this time as the demon who turns others into demons.