Reborn to thirty days before the outbreak of the last days, awakening a super-large spatial ability, recalling the desperate past of being betrayed and dying with depleted supplies in the previous life. Holding tens of millions of funds, seizing the time to stockpile all kinds of survival supplies, customizing an all-steel anti-radiation safehouse, retrofitting high-and-low-temperature-resistant special vehicles, and traveling far overseas to reserve fresh water, energy, and protective equipment. Avoiding the triple natural disasters of high temperature, glacial epoch, and floods, relying on sufficient reserves and thorough planning, alone and steadily surviving all the difficult stages of the doomsday.