Reborn after the apocalypse, Wen Xin returns to the days before the disasters begin and unexpectedly gains access to a mysterious space that can store supplies. What she never expects is that Mu Xuan, the original female protagonist, has also returned with memories of her previous life and has been coveting Wen Xin's space all along. Torrential rains and floods are followed by extreme heat, and urban order gradually collapses. Facing the dual trials of natural disasters and human nature, Wen Xin protects her supplies alongside her family and repeatedly overcomes crises. Eventually, they reach a shelter base and begin a new life in the apocalypse.