Now I get why this serie is only 20 chapters.
Of course is not amasterpiece, but almost no web manhua deserves that title, but the thing is that MC was a elite studnet and didn't knew the weak points of begineer field monsters.
Then it gone the obvious human enemies route by making MC destroy a gang that will of course have the stronger members of it target him.
And then it seems like his skill got restricted from "raise" every skill to max to "only D class skills".
Now I wonder if is a translator error but there is no name for his job, only "beginner".