I Built an Underground Noah's Ark

In 2027, the Blue Planet was discovered by aliens.

In 2033, humans were invaded by aliens and the blue planet changed hands.

Ye Linsheng, who was reborn in 2025, discovered that he had less than two years to save human civilization.

The gap in technological strength is too great, and it is impossible to fight against each other in two years.

Ye Linsheng chose the most daring and crazy method: to build a human underground city ten thousand meters deep...