The Original Silver Cross

Two thousand years ago, the world encountered an alien enemy, all its natural materials and treasures were taken away, and all the geniuses were killed. The source of energy in this world is exhausted, and there will be no talk of cultivation in the future. Nowadays, people in this world can only rely on the relics that have not been plundered and have residual source energy to improve their own strength. —————————————————————