Lu Chen was awarded the most useless professional cultural relic restorer in history during the awakening ceremony, and became the laughing stock of the whole school. That night, the world of thousands of races tore apart space, and ferocious alien races bloodbathed the city. When he was about to die, he repaired a broken stone tablet, and the light curtain instantly unfolded: the embers of civilization were detected... Career promotion: Civilized Tomb Keeper... Unlocked permissions: Analyze the weaknesses of the races, and recreate lost technologies! From then on, he stood on the ruins, holding the fire of human civilization in his left hand, and holding the lifeblood of all races in his right hand. Behind him were the roars of hundreds of millions of human beings who had changed jobs: I will guard the tomb in this world!