Beginning of the End

The world is alive, but in human eyes it is dead. I only remember that night, the demon from hell started a bloodthirsty feast in the human world. People have indiscriminately turned into bloodthirsty zombies who are not afraid of life and death, and animals and plants have also turned into terrifying monsters. In just a few hours, humanity has been in dilapidated state, and the structure of the world has quietly changed at this moment.