In the End of Rebirth, I Use Materials to Build an Eternal Shelter

In the last life, Su Qingran was reborn on an extremely cold night at the end of the world. She was pushed out of the safe house by her biological parents and younger brother, her space was taken away, her supplies were robbed, and she froze to death in the wind and snow at minus 40 degrees Celsius. The mysterious man who always silently protected her and died fighting for her in the tide of corpses could not gain her trust until his death. Relive your life and go back to the ten days before the end of the world. Extreme heat, monstrous floods, thousands of miles of ice, acid rain corroding bones... Rounds of natural disasters are about to crush the civilized order. In this life, she awakens to a limited storage space: It is initially small, requires mental power to drive, cannot store living creatures, and has a cooldown when accessing it. It is by no means an invincible plug-in. In this life, she holds millions of start-up capital, and does not show off her wealth mindlessly, but only hard-core cash-in, hidden hoarding, and low-key infrastructure construction. No longer soft-hearted, no longer a holy mother, no longer kidnapped by blood. For the best relatives - cut off their wealth, give up hope, use rules to fight back, and let them suffer the consequences. For the apocalyptic crisis - stockpile supplies, renovate villas, strengthen security, and build a circulation system, step by step. To the benefactor from my previous life - this time, I will protect you. The outside world is full of hunger, scorching heat, besieged by floods, and sealed off by extreme cold. Inside her villa: It has a constant temperature and is livable, self-sufficient in water and electricity, sufficient food and water, and tight security. From one person in one room, to a team stronghold, to a pure land of mankind. She uses materials as her base, infrastructure as her bones, and people's hearts as her walls. In the apocalyptic disaster, build an eternal apocalyptic shelter.