If you're looking for a 2D OP wish fulfillment story, you'll probably actually like this a lot.
The main character basically goes from 0 to OP just by reading one scroll and some completely unguided solo "training". Even before the training or even finishing the scroll though, he's shown to be inexplicably strong despite having a weak and untrained body, and it is said that he's inherited the "will" of the also unexplainably powerful only ~100 year old sect that his father was the leader of. Despite not being allowed to study anything except the linguistics of an ancient language, he also somehow magically knows all about the history of the Murim, arcane arts, politics, etc thanks to his solo training without a library or anything? I guess that's not the surprising given that he self-taught himself to be a world class blacksmith.
From there, the main character just trounces 2D cringe baddies on his path following his supposedly moral path. You know he's so great because the baddies keep talking about how great he is, to his face, behind his back, to themselves. The baddies seem to think that he's completely amazing. He frequently acts like a jerk in what's supposed to be a "good" way, but it usually just comes off as cringe. On that note, there is a LOT of cringe...
That said, what it lacks in depth, it kind of makes up for in the beginning with humorous side characters, an interesting setting, some promising plot points, and decent artwork. Unfortunately, none of it seems to go anywhere.
If I hadn't already read too many variations of this story, I'd probably have enjoyed this a little more. In fact, it's not the worst version of the weak orphan boy magically turns OP badass who is loved by all that is good and resented by all that is bad. However, it's pretty bad... I had some hope in the first ~50 chapters, but then it just kind of really leans into the a## pulls and goes a whole lot of nowhere. I finally dropped it around the 120 chapter point.