The sun died. In 2045, an abnormal solar flare destroyed the world's electromagnetic systems. The surface temperature plunged to minus fifty degrees, and eternal night descended.
Lin Mo had died once. In his previous life, the underground shelter he had painstakingly built was ultimately destroyed by his companions' betrayal and their greed for power. He fell in a pool of blood, watching the fortress he had built with his own hands become someone else's spoils of war.
When he opened his eyes again, he had returned to seven days before the apocalypse.
This time, he had three years of memories from his previous life and a mysterious System called “Ecological Ark.” He would build an underground ecological city in an abandoned mine, one capable of housing a million people. Vertical farms, artificial sunlight, controlled nuclear fusion: step by step, he would move human civilization from the surface underground.
But the enemies he truly had to face had never been the extreme environment or mutated creatures. They were the greed and fear hidden in the deepest corners of people's hearts.
Will the person who stabbed him in the back in his previous life do it again this time?
