"I remember when Limitless Universe Skill was upgraded from LV.6 to LV.7, it only consumed 4.9 million soul points, but now it requires 6.3 million soul points to upgrade from LV.7 to LV.8, which is an increase of 1.4 million soul points."
Although the increase of 1.4 million soul points in upgrade requirements is definitely not much compared to other professional skills, it's indeed a lot for Zhang Yanhang at the moment. At least, he finds it a bit unaffordable.
"Judging from the current situation, if I upgrade again, the requirement might casually rise to tens of millions of soul points. Therefore, although there are indeed only three levels left to improve, it would still require at least twenty to thirty million soul points to fully upgrade."
