12th restricted area

In this sinful city, because of people's greed, some people's lives have become stepping stones. The broken bodies accidentally found on the podium, the missing students, the bodies in the attic... A new classmate named Huo Xiao came to the class and resigned as Liu Xi's deskmate. Soon they became friends. On this day, the people in the city were infected by the virus, and the whole city fell into panic, All this is closely related to the twelve restricted areas