Zhenwu Tianzun: Start Practicing from the Stock Exchange

My name is Li Jing, a small government official in the Zhou Dynasty. Like other protagonists, I also have my own golden fingers: [Avenue Exchange] allows you to buy and sell talents, roots, understanding, and even the past and future. But there are restrictions. The other party must trade voluntarily, the chips must be equal, and there must be no forced buying or selling. So, I put on a mask and turned into a kind person who saved people in need. From the dying hero, I bought the past of a hundred years and sold him relief. He bought his martial arts talent from a prisoner with a capital crime and sold him his freedom. I even sold excellent meat to the man-eating demons and bought their magic skills. But, I'm not an honest person. Free prisoners are the meat I sell to the devil. Buying the magic of the demon has become a means of slaying the demon. After all, transactions only need to be voluntary, not equal. The world is difficult, demons cannibalize people, and people cannibalize people. I can't save everyone in this broken world. But at least I can save myself, kill the monsters I see, and protect several lands. It wasn't until many years later that I seemed to hear people calling me. What is it called... Jiutian Dangmo Zhenwu Tianzun?