The Earth Supplier of the Wizarding World

My name is Yanxing, an earthling, who can travel freely between the earth and a magical world. The elves like the silk I brought them. Orcs like the soap I brought them. The human nobles crazily pursued white porcelain. The dwarf was fascinated by the alloy he bought from me. Even the undead hope to order a set of high-quality coffins from me to show their identity. One day… angels, dragons, demons found me. I said to them: “My market is open to all races and creatures. What you pay can be gold coins or your labor…” - Description from MTLNovel