Jiang Cheng's worries were not without reason.
Because the cultivation speed of an ordinary person is actually quite slow.
To reach the ninth level of Qi Cultivation before the age of thirty is already considered above average.
Someone with a bit of talent in cultivation, like Yue Linger, could reach the ninth level of Qi Cultivation before turning eighteen.
Take Yue Linger as an example, assuming she started cultivating at the age of six and reached the ninth level at eighteen, she would need an average of a year and a half to advance one cultivation level.
Yet Jiang Cheng, in just a few short minutes, had consecutively improved by two cultivation levels.
This almost shattered the general perception of cultivating immortality.
A commoner is not guilty, but possessing a jade makes one a target.
Improving strength at a speed beyond common sense is not only not a good thing, but it also easily makes one a target for all.
