Alright, it started off good, then it fell from grace.
The art is decent and fighter scenes are ok, just don't read the manga expecting a proper plot. 6/10
First off, the MC is stupid, he tortured himself in the mountains cause he got dumped? He treats it like traumatization of the sort. The plot is way too exaggerated in this manga. Also, I hate it when an MC becomes overpowered suddenly. Training takes time and effort, not a cheat skill, if he just receives a skill to make him the most powerful being on earth, it doesn't feel all that rewarding. Just cheated of all future progress.