My Secret Realm Is the Center of All Worlds

Lu Huaijin's ancestral jade pendant is cheating - there is no old man with a white beard in it, but it contains a secret space that can be exchanged for all things! Everything can be turned into energy, energy can be exchanged for everything, and visitors from random time and space can come uninvited. I thought I would just sit back and rely on my poor information to become a top-notch businessman in the world, with wealth and resources at my fingertips. But his customers are more "beyond imagination" than the others: Xue Baochai didn't ask for fancy clothes and jewelry, but asked for modern salt-making methods. What she wanted to change was more than just the fate of the Xue family in Jinling? Li Shimin stared at the unfolded world map, his eyes burning: "Mr. Lu, how about exchanging this thing for the thousands-mile territory of the 'Khan of Heaven'?" When the warriors of the Qin Dynasty and the cavalry of the Ming Dynasty come to the battlefield in another world side by side, what kind of scene will it be like? From the initial timid bartering, to later taking the initiative to expand the secret realm, he brought together the treasures of civilization from all over the world: Technology, cultivation, magic, poets and poets... Collide, merge and sublimate here. Until that day, he stood on the top of the secret realm and looked down: Towering skyscrapers, giant mechas cruising, the chants of ancient people intertwined with holographic images - an unprecedented splendid civilization was born here. Lu Huaijin then touched his chin belatedly: "Wait a minute, isn't my first dream to be a happy second-rate dealer?" "Why did you accidentally create a new world that... Makes all the worlds fascinated?"