[Demining before reading: system article, main line of business to get rich, branch line to slap people in the face] Cao Weidong traveled to the era of courtyards, became a resident of a courtyard, and an intern purchaser at a steel rolling mill. By the way, he awakened to a strange system. Doing good deeds can earn the gratitude of others. Got a reward? Looking at the beasts in the courtyard, Cao Weidong sighed. It’s hard to do.