Chapter 1 Summoning Gremory

Reincarnated as normal human being in cultivation world surely a death sentence...
No talent, and no system...So no matter how I try to increase this QI thing, surely I won't be in upper realm...Yet, I remember a book which I read in previous world, it's Ars Goetia which consist 72 demons of Solomon..If this nonsense world where there is immortal, surely summoning a demon of Ars Goetia will be working, right?