Jiangcheng Is Surrounded by Mysterious Rainbow and Fog

[Suspense reasoning + science fiction + unlimited flow + mystery? Jiangcheng has frequent murders and a lot of mystery! Is the murderer human? Not a human? Where do they come from? An ancient legend hides the history of a mysterious race. Is it a friend, an enemy, or...? Jiangcheng and the entire human race are in danger, and the fate of catastrophe cannot be changed? Who can turn the tide? Everything begins when the sky changes, and a suspenseful and interesting science fiction story unfolds...