Weird Era? the System Gives Me Immortality!

[Terror revives, eternal night is coming. [This is a competition between old and new species. The loser will eventually be torn apart, cannibalized, and devoured...] [But there are always some lucky people who can recognize the coming of despair early, and you are one of them. [Wipe away the tears from the corners of your eyes, and with your final stubbornness, feel the pain, despair, and helplessness! [Welcome to the Weird Era! My name is Gu Xiu. When you see this sentence, don't be afraid. I'm... Graveyard dance!