I Survive in the Age of Mountains and Seas

Hell is empty, Death is on earth. In the park in 2100, the aura of the earth began to recover, but what followed was a loss of life. An unknown alien beast suddenly appeared on the earth. They had different shapes and were numerous in number, harvesting lives one after another like the god of death. Humans were slaughtered by them like lambs waiting to be slaughtered. Gradually, scientists in Daxia discovered that the images of these strange beasts could be found in the Classic of Mountains and Seas created by their ancestors hundreds of years ago. So people called these strange beasts the strange beasts of the mountains and seas. In order to survive, people began to fight with the strange beasts of the mountains and seas...