Review Detail of DMon in My Angelic System

I have read 25 chapters, and further straight no way, I have all this time a feeling as if the author does not try over the plot, it is disgusting to write the characters, they are either light good or dark evil, the second is not given, I have a feeling, as if all being near not potential friends of mc intelligence is multiplied by 0 and I threw this novel in the most part because of this, also in these 25 chapters there is no clear explanation of the world, i.e. we know there was a war and now there is a small truce and that's it, seriously, if the author's characters didn't have negative iq's I would keep reading this, but I can't stand such blatant abuse of my brain.