Yan Fei finally understood the whole story. Undoubtedly, the cultivators who left Earth must have used this evil technique, which is why they became even younger after eighty thousand years, and their strength was greatly enhanced. It's just unknown how many cosmic civilizations they slaughtered along the way. Fortunately, he did not fall for it at that time; otherwise, with the evil thoughts these cultivators developed, they would have eliminated all surviving Chinese in Dreamland Cave World in the shortest time.
Yan Fei said, "Did your ancestors invent this technique to prevent any other cultivators on Earth, intending to eliminate them upon discovery?"
