C1621 The Demon Lord of Extinction Appeared

Loong Jiaoyang said in a deep voice: "The method that Yellow Spring Nether Sovereign is talking about is to reverse time and space with a Secret Treasure and go back to the past to kill Hell Emperor. But no one can guarantee that it will succeed, and even if it does, no one can know what changes will happen to what has already happened."

Pausing for a moment