Qingshan Village girl Shen Haitang awakens supernatural powers, able to see everyone's remaining lifespan hovering above their heads. The lifespan of the entire village suddenly drops to seven days, and only hunter Xiao Ye's family has a longer survival time. To protect her young sister Xiaoman, Haitang figures out every possible way to marry into the Xiao family. Soon after, the zombie apocalypse breaks out, and relying on lifespan prediction, she hoards provisions and weapons in advance, leading the Xiao family and some villagers to struggle for survival. In the cruel doomsday, the clever and thick-skinned Haitang and the cold-on-the-outside-warm-on-the-inside, highly skilled Xiao Ye transition from contract spouses to mutual affection. While everyone fights mutated zombies, deals with the schemes of selfish villagers, and reclaims land to build defenses to desperately rewrite the death countdown, the lifespan numbers are still ticking away.