Extremely Cold Apocalypse: My Shelter Is 100 Million Points Strong

Reborn and returned to the thirty days before the extreme cold doomsday. In my last life, I crawled in the ruins for ten years, and was pushed into the corpse tide by my most trusted brother. In this life, the first thing I did was to sell a house, take out a loan, and buy it for zero yuan. Freeze-dried food? Sweep empty. Arms and supplies? All inclusive. Everything in the city can be purchased, and what cannot be purchased can be stored in the space. On the day the apocalypse came, the whole world was cut off from water and electricity, and the temperature plummeted to minus 40 degrees. I took my parents into hiding in a renovated fortress villa with bulletproof glass, diesel generators, and enough supplies for ten years. Someone outside the door slapped the steel plate and cried: "Open the door! My child is only three years old, please!" I looked out through the peephole and saw a dozen people squatting behind him, all holding guys in their hands. The tricks I used in my previous life won't work in this life. While the survivors were still digging for food in the garbage, the aroma of hot pot was already coming from my fortress. The mutant beasts' first wave of offensive is gathering.