You Want Me to Save All Mankind in One Sentence?

When one day you suddenly find that everyone around you has become a fool, but you are still as smart and wise as ever, what will you want to do? To become their leader and govern the world? Or cheating banks, picking up girls, and doing all kinds of evil? Chen Xing was very confused about this! But he soon discovered that things were not that simple... The high-speed train walking in the clouds tears through the rain curtain, the rules of physics are rewritten at will, and there are also terrifying existences from beyond the sky. "It seems we should save the earth first!" Chen Xing thought helplessly in his heart.