I Am a Profiteer in the World

Jiang Yu, a down-and-out college student, accidentally obtained the golden finger of the system and became the most awesome... Vendor in the world. What? Do you think this picture of a chicken pecking at rice is an authentic work by Tang Bohu? What? You even carried out Li Yunlong's Italian cannon? That's too much. What do you mean by selling me the Sunflower Book? Travel through thousands of worlds, engage in buying and selling business, and become the most rapist businessman in all worlds.