The war began with the outbreak of a new type of influenza virus. The original appearance of the world became distorted, and the city became a monster with claws and teeth.
Human beings, who were helpless against the sudden invasion, were forced into a desperate situation. The infected patients went crazy, lost their rationality and turned into aggressive alien creatures. Some researchers collected virus samples from captured infected people and developed corresponding antibodies. They found a large number of experimental subjects in national institutions to test the human body's adaptability to antibodies——
Amidst a large number of sacrifices, the experimental subjects began a riot, which ended with alien creatures occupying the laboratory and the few "people" who were successfully vaccinated with antibodies escaped. The war has also accelerated its spread, leaving only silent dark clouds, gray rubble and blood-stained land in the world.
The world is collapsing, collapsing.
It was a desperate beginning.