This is yet another story for submissive, passive-aggressive losers to fantasize about winning as a loser.
The very premise is that if you live your life being other peoples' work-btch (ex: work yourself to death for your parents why don't you?!), then you will be rewarded in the afterlife, 'cos God LOVES men to be submissive btches, dontcha know?
So the loser MC uses his past as a submissive work-b*tch to justify his need to be dominant over others in his NEXT life (because he was too much of a pussy the 1st time around, I guess he had regrets, or should I say huge resentment?).
It is indeed a very strange world where fate and karma would want to so reward someone just for being a dumb submissive work-btch, but it is thereafter not surprising to see the MC make many dubious moral choices - he is in fact just a wannabe-thug who is finally given powers and luck so OP even a wuss like him can finally stop being everybody's btch!
But even with all that, it was pretty fun for the first 6 books, but the 7th book feels like the author ran out of ideas or inspiration, and hence just decided to re-hash some old stuff from Coiling Dragon:
The 'training in the city' arc completely breaks with the tension of the previous books, and has the MC basically drop everyone he has contacts with to go train in some city.
The problem though is that at this point, the story starts to repeat CD, as the MC meets rich friends and benefactors and gets to train at some super-elite school where he can constantly show off his OP skills.
Anyhow, other than being generally miserable at romance, or at offering depth of character, or at detailing interesting friendships (or interesting people), the author also seems to have extremely tacky taste: his sense of the ultimate in style is just MOAR!
So when you need to impress someone? Well, a ceiling made of priceless jewels sounds pretty 'leet, so the author makes it a TEN KILOMETER passageway made of priceless jewels (how practical is that?), or some rich dude has an estate that is a hundred square kilometers of prime downtown real estate, etc.: the ONLY way this dumb and tacky author can imagine class is by increasing the count of expensive things, and sadly he is trying to impress us by doing so at a 'godly' level...