Frozen Apocalypse: I Exchanged Hundreds of Millions of Supplies for My Sister

The Ice Age is coming, and ancient viruses engulf the world. Cheng Yi'an was reborn three days before the apocalypse broke out, and was bound to the "Human Civilization Fire System". Start with a bus, invest energy, and it will be directly upgraded to a mobile fortress of doomsday! Food, clean water, weapons, armor... As long as there is enough energy, everything can be created out of the void! While others were struggling to survive in the mouths of zombies, Cheng Yi'an drove the steel fortress and embarked on the road to find his sister. Along the way, the salesman he rescued became his most trusted logistics manager; the rich girl he sponsored brought key technical blueprints; and the retired officer he met by chance turned the fortress into a war fortress. But what he didn't know was that the sister he was looking for, Cheng Yining, had already formed the strongest battle group in another city in the name of Thunder that made the alien beasts fearful! Until that day, the tide of beasts engulfed everything. The desperate survivors looked up and saw thunder tearing through the sky and a steel city stretching across the earth. Cheng Yining appeared in the lightning, looked at the figure at the top of the city, and smiled brilliantly: "Brother, can your base vehicle hold one more person?"