Instead, for better or worse, we get the very cliche Manhwa power fantasy story about a martial artist and his single-minded goal of training to get stronger. Much of the plots are the MC using his knowledge of the future/past to set things right in his second life mixed in with mini training arcs. There is a bit of a harem that forms but as per Manwha cliché, the MC ignores their feelings and just takes advantage of them for plot elements.
Definitely some wasted potential here in the lack of murder plot. If "Martial artist obsessed with training so he can save the world, after dying and being sent back years to get a second chance" is something new and interesting to you, then read it. But this sounds like something you've read a lot before (Because its common), there might not be much new and interesting for you
