I Can Save All Mankind

In the year 220, on an ordinary day, the sun never rose again after setting. Since then, the earth has experienced countless horrific apocalypses. Just when human civilization was on the verge of collapse, Zhou Zheng carried the "Human Survival System" and returned to before everything happened. At this time, there are 180 days left before the sun disappears. Zhou Zheng cooperated with the country, and countless black technologies that shocked the world were quickly revealed to the world. Coupled with the country's terrifying infrastructure capabilities and mobilization efficiency, in the blink of an eye we are fully armed to face the coming doomsday. Zhou Zheng became the savior of mankind at this time. And the east has become the only pure land in the world, with an artificial sun rising slowly. This is a story of united efforts to fight against the doomsday disaster with the power of the group...