To engage in career, the protagonist has no CP or background CP, focusing on improving his own strength, working hard to make money in the modern world, and strengthening himself in the fantasy world.
The protagonist has a strong sense of inhumanity, and the male protagonist doesn't have many roles (although I don't understand why there is a male protagonist in this kind of novel)
There are shortcomings, for example, the protagonist has three times the time to take the college entrance examination and still fails to enter a key university. But the career growth line is good, there are some logical illogicalities, but it is enough as a novel.