No Symptoms of Infection

(Parallel world | Zombie apocalypse | No fantasy | No cultivation | No saintly protagonist | No System | Minor supernatural abilities. The focus is realism. If anything here seems familiar, all I can say is: good luck to you.)

At first, nobody paid attention to the earliest signs of disaster. It was just an unknown flu, a few violent attacks, a quiet rise in prices, and hospitals and crematoriums overflowing. That was, until it all became relevant to everyone.

Amid the ruins of a collapsed civilization, an ordinary nobody will rebuild a sanctuary for the living on land overrun by the dead!