Apart from the beginning it ends up being your average cultivation story. It's an easy read but the story is very unsatisfying .Not even a robot from the future can save our thickheaded MC .(I guess in the future they are totally fine with murder)

The MC has 0 curiosity, after a few chapters the awkwardness with the nano machine disappears and it is left as an off-voice/instrument to scan his enemies, do shadow training...(most of the stuff could be done without nano if he trained harder than his peers) He never once thinks of the future and it's only used to boost his cultivation .

Instead of exploring that (the nano machine and the future). It turns into a revenge story or so it should but that is put aside since the MC is very dull and makes himself lots of enemies, because he wants to be the best ( trainer ) cultist leader there ever was .Instead of laying low to learn all he can and then travelling the world witch would be the obvious path.

What I disliked is that the revenge is almost forgotten and that after saying he wont repeat the mistake of his father did buy having various wives ,he ends up having a harem .