End of the Era Zombies

In 2039, the gene repair virus "Eden-7" secretly developed by the multinational bio-enterprise "Hemera Group" was leaked in a North American laboratory. The virus spread rapidly through the air and body fluids. 97% Of the infected people were brain-dead and turned into zombies within 72 hours, and the remaining 3% developed varying degrees of immunity or mutation. On the 30th day of the virus outbreak, the global order completely collapsed, cities were reduced to ruins, and communications, electricity, and transportation were completely paralyzed.