C709 The Ruthless Commanders of the Apocalypse

This world was actually very quiet. Humanity had shrunk from billions to millions of people. This was because of a catastrophe that happened many years ago.

At that time, humans had yet to evolve to such an extent. Hmm, if one must say, then for Gong Yun's generation, Su Yan's era could be considered ancient times.

At that time