Lu Qingxiao is trapped on the seventh day after the Apocalypse begins. Every time she dies, she wakes up in her own bed. On her 99th loop, she discovers that the source of the zombie virus that will devastate the world is none other than Shen Ji, who will become humanity's public enemy in the future: the Destroyer. This time, she decides to live differently and save him before he turns evil.
"Why are you saving me?" the bloodied boy trembles amid the ruins.
"Because," Lu Qingxiao says with a sly smile, wiping the grime from his face, "I've seen the best in you."
While everyone else struggles to survive the Apocalypse, Lu Qingxiao uses her memories of the loops to stockpile supplies and build a base with the future villain, even growing vegetables and keeping him from turning evil. But she gradually realizes that this seemingly fragile boy seems to have known about her loops all along...