Five hundred years after the destruction of the earth, the surviving humans established a new home. In order to find the organization, they organized a team of people to search in unknown places. They accidentally discovered a sinkhole that was bottomless. After this team entered, half of them came back, and then awakened their supernatural talents. More and more people are awakening each generation. The exploration of tiankeng is getting deeper and deeper, but tiankeng has side effects on humans. The deeper the side effects are, the more serious the side effects are, but the people who can come back alive will become stronger and stronger. Then the tiankeng will be graded from shallow to deep, and humans on the ground will also start exploring according to their own abilities to the limits of what they can reach.
