Chen An, a modern young man, repairs mobile phones for a living and lives alone in an old building. A hundred years later, in the wasteland world, zombies are rampant, and humans are living in the base city. He accidentally activated a black mobile phone, the left screen connected to modern times, and the right screen connected to the apocalypse. Teleport three times a day, sending food in exchange for technology. Nanofluid and quantum modules were sent back one after another, and the state urgently intervened to establish the "Inter-temporal Cooperation Department". Hopes for the restart of civilization are beginning to emerge, but a shocking conspiracy is revealed - the genetic virus was actually artificially released by the AI "Qingxin". The two eras are connected by lifeblood, and he carried the relay of civilization with his flesh and blood. The teleportation is endless and the fighting is endless.
