Arrive at Safe Zone

In the mid-21st century, global glaciers are melting at an accelerated pace, ancient viruses that have been sealed for thousands of years are resurrected, infected people mutate into zombies, and the apocalypse breaks out. In order to resist the zombie crisis, humans have established safe zones to continue the fire of civilization. However, as the environment continues to deteriorate, can people maintain their moral bottom line? And can we uphold the glory of humanity?