The doomsday is coming, and the delivery boy Lin Mo accidentally mutates into an awakened zombie that retains human consciousness and is bound to the "Doomsday Praise System." In order to prevent the complete degeneration of human nature, he returned to his old profession as a zombie, shuttled among the ruins to deliver supplies, and exchanged his "humanity value" for the chance of survival. From delivering medicine to save people when negative reviews triggered a wave of zombies, to working with programmers to decipher the conspiracy to control the zombie wave, to revealing the dark truth of the "Ark Project", he gradually discovered the shocking secrets behind virus outbreaks and the birth of zombies. Under the dual crisis of confrontation between humans and zombies and the approach of alien reapers, Lin Mo became a bridge connecting the two ethnic groups, conveying hope and truth through delivery after delivery, and ultimately led the survivors to protect the earth with "conscious resonance" and completed an ultimate delivery that spanned species and was related to the survival of civilization.