This is a very stereotypical xianxia plot, but funnily enough, this is the best of that genre ive seen in manga format, maybe because its korean not chinese LOL
The impotent rage of manga readers who just picked up the series, binge read it in a day or two, and are angry the MC is still traumatized is almost amusing to watch.
If this is the trope of the MC becoming an omniscient being and directing his own past self 'to complete the cycle' or something along those lines I'm gonna flip.