Chu Nan believed in his intuition very much. He explored along this barrier. The barrier was very wide. Chu Nan ran with all his strength for seven or eight hours. He didn't touch a little edge. He couldn't see the end.

at the same time, Chu Nan thought, "this barrier is like the sky curtain in the void." With the exploration of South Chu, South Chu is more positive about this idea.

"the sky has a curtain, the earth has a curtain. Is there another world under the earth?"

Chu Nan raised such a question. After a few minutes, he said, "guess if it's right. If you break this barrier,...