Three thousand years ago, Lian Cang was beaten to the point where only a wisp of his soul was left. He escaped into the underground world.
In the beginning, his heart was filled with hatred and he wanted to take revenge.
Thus, he imparted the Dao of inscription to the underground humans, hoping to cultivate an Imperial path expert to avenge him.
Thus, he became the ancient ancestor of the underground humans.
But later, he realized that the underground humans had a special Constitution. Perhaps because they lived underground, they were different from the great Dao of heaven and earth and were forever separated from the sun, moon, and stars. Thus, the underground humans were not like the people outside the earth, who had infinite possibilities. The humans here could only cultivate to the sixth level at most.
That's right, rank six was equivalent to the spirit sea realm, which was also the God rank that the Underdark humans called.