There is an extra door in Xu Lang's warehouse, and behind the door is Daming. Others travel through time and play tricks, but he is good at it, specializing in being a rich man - selling Yiwu small commodities to the people of the Ming Dynasty, and then bringing antiques back to modern times to sell. It wasn't until he met Jin Yiwei that he realized that this door was not for him to get rich, but for him to be the savior. But why does this savior look more and more like a profiteer?