Refining System

Zhang Cheng was hunted by his enemies and forced to hide in the city. The city was seriously polluted, there was a lack of spiritual energy, and he lost all his cultivation after being seriously injured. Can he survive in the city? Can he escape the pursuit of his enemies? Fortunately, he accidentally acquired a skill - refining. Well, Zhang Cheng also admitted that although this skill cannot increase cultivation, it can refine gold, silver, money, various fighting techniques... And finally it can refine the city. Can this skill refine immortal cultivators? Is it possible to refine the entire world and heaven and earth? Zhang Cheng felt that he should go back and find his enemies to try!