If you are waiting to see the MC become OP, I'd advise you to just drop the series.
The author has no plans up till chapter 43 in making us feel, dayum mc, you're strong now.
The current arc villain, the blonde guy, guess what beats up the MC.
Heck, every single lieutenant of the blonde guy beats up the MC.
Does the MC learn to become cruel? Does the MC physically disable the henchmen so they will not be able to keep on fighting? Does the MC learn to become more cunning?
Resounding no. The MC is still a limp dick useless piece of crap 43 chapters in.
The blonde guy was actually beaten by a side character introduced 30 ish chapter who just happen to drive by.
Imagine all that build-up of the MC training, gotten beaten up to have an arc ending of a side character beating the first boss of the manhwa.
I rate this masochistic retarded manhwa 2/10.
If you want to read something good, go for weak hero instead of this crap.