Possibly KR's most reoccuring trope.

Yeah, i'd peg NTR/cuck'ing as KR's most re-occuring and overused trope. 

Weed is a necromancer until he dropped it recently to get the warrior of the sun class. But still, he still hav the necromancer skills 

A good few including 2 of my favorites which are EER and Dragon Poor(please someone tl this TwT). But money is a pretty basic plot point that is commonly found in KR and especially CN while the mc's class has a lot more to do with the story as a whole. 

NTR is the future, embrace eternity!  

Plenty?

Now name me one where money isn't a major plot point. 

Oh I was thinking video game system would be the number 1 trope in korean novels. 

'Everyone Else is a Returnee' I don't remember MC being or related to  necromancy in it  

Really? I find the pacing in KR to often be the best of the three, especially when you constantly deal with CN authors chasing word count and JP isekai slice of life. 

The problem isnt with pacing, but with how many chapters the mc is still stuck in one same plot. I like characters solve many problems, move to different places/realms, reach his goal n create new goals. I really hate novels that has mc still stuck doing same thing or facing same enemies for 50 ch or more, n definitely will drop the novels.

This problem occurs to some chinese novels too, but probably because of word count, n not so extensive as in korean novel. But if japanese novels maybe the entire novel is only use for one single plot. -__- 

Royal daughters/ladies with dangerous/deadly family figures seem to thrive in webtoons too. 

Or a somewhat rude-to-a-level MC. 

*cough* https://www.novelupdates.com/series/praise-the-orc/