High school student Ye Jinan and five other people woke up in the dark night, only to see the world falling into a dark abyss. In the sky, evil creatures are like black clouds covering the sun, with teeth and claws bared; on the earth, polluted humans look like walking corpses, exuding a putrid stench. The city has been reduced to ruins, despair and silence permeate every corner. They are the only sane people left in this doomsday, but they are also chased by endless fear.
