They Came at Dawn

[Biochemical humans]+ [Aliens]+ [Extraterrestrial invasion]+ [Mutated cells] From the dawn of that day onward, rivers of human blood stained the earth and a crimson haze filled the sky, but nothing could stop the biochemical humans from entering the Hongmeng Gravity System's quarantine zone. At the heart of the zone stood four gigantic stone gates, each ten thousand stories tall. The gates stood guard in the four directions: the Azure Dragon in the east, the White Tiger in the west, the Vermilion Bird in the south, and the Black Tortoise in the north, protecting the center. Unable to fight or break through, the biochemical humans cultivated Sequence C, an alien species created from retrograde cells, to produce half-human, half-beast creatures to battle the four gates. Then, one day, the most mysterious Sequence K finally emerged, and Gao Rui began his life on the run.