Xiao Zhen was currently studying the Cultivation Techniques of the human race in the Fox Spirit World. He found that they were generally not much different from the cultivation methods of other worlds.
Logically speaking, these Dao cultivators should have found it easy to achieve longevity. They cultivated their bodies, strengthened their magical power, and refined their souls.
It was not a special kind of energy like Chakra, which required consuming the cells within one's body.
Yet in this world, even if humans cultivated to a realm where they could rival Demon Kings, their lifespans still did not exceed a hundred years.
That was quite a trap. Xiao Zhen knew the problem did not lie with the Cultivation Techniques, so he began actively observing his surroundings.
Although he was currently unable to wield his full strength, his Heavenly Immortal cultivation was still there.
By peering into the laws of the world, he finally found the reason. One rule was tightly bound to humanity's fate, limiting human lifespans.
It could be said that humans were a special species in this world. No matter how they cultivated, they could never attain immortality.
There was another restriction as well. It seemed that different demons could reproduce with one another.
Humans and demons, however, could not. This could be seen from the original plot: among all those reincarnated love bonds between humans and demons, not a single half-demon had appeared.
Perhaps this was also a characteristic of the Fox Spirit World. Many worlds were roughly the same. Even if one possessed the power to destroy heaven and earth, one's lifespan remained about the same as an ordinary person's.
However, after a period of careful observation, Xiao Zhen was temporarily relieved.
That was because he and the women, as outsiders, did not seem to be