This World Is so Stable

I, Yan Yuan, am in a panic now because someone told me that the world is going to end. But the sky outside was the same as before. I asked the old man who told me the news, but before I could finish speaking, he hit me with a palm. I fainted. When I woke up, the world had changed... Why do these things appear in this world? What should I do? Is someone really playing me? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.