One month before the apocalypse, Zhu Yue is reborn and falsely claims that an extreme heatwave will strike when the apocalypse arrives, tricking her sister, Zhu Fanxing, into handing over her convenience store. Seeing through her scheme, Zhu Fanxing pretends to cooperate while secretly emptying the store. She then spends a fortune transforming a natural cave in the mountain behind it into a top-tier shelter equipped with bulletproof protection, ventilation, and an underground river. She stocks up on plenty of cold-weather supplies and resources for farming and breeding. When the extreme cold of the apocalypse arrives, Zhu Fanxing lives comfortably and peacefully inside her cave, enjoying her own paradise amid the apocalypse.