I have a shop in the Multiversal Trading Center.

In the toughest moment of Robin's life, a beggar sells him a ring. after wearing the ring. A think-call system told him that he had become one of the shop owners of the Multiversal Trading Center and gave him two choices: if he wanted, he could become the owner of the shop, or he could just ignore it and go on with his life. Robin has nothing to lose, so he accepted the offer. Robin finds out that in the Multiversal Trading Center, there are a lot of different kinds of creatures, and they are buying, selling, and exchanging various types of technology and materials. Follow Robin and see how he became different after building a business empire. Can Robin stay as a moral human being, or will he become a corrupted human being in this unforgiving world in order to follow his dream of going to the stars?