I Run a Weapons Shop. What Happened to the Hundreds of Millions of Artifacts?

After accidentally traveling through time, Xu Jin came to a different world and inherited a weapons shop. This is a magical and dangerous world. Fortunately, he has the "Weapon Shopkeeper System" and can obtain more powerful monster equipment through synthesis. While carefully investigating the cause of death of the original owner of the body, he continued to synthesize various powerful demonic equipment. Since then, a legend has become popular in the world. The equipment that a seemingly ordinary weapons shop owner takes out may be the ancient artifact that the world dreams of! "Come and take a look. Don't miss it if you pass by. There's a big sale on premium high-quality equipment. Buy one and get one free!" "Why, beauty, you don't believe this is a divine weapon? Watch it!" Xu Jin raised the staff in his hand and fired a magic cannon at the holy dragon roaring up to the sky on the volcano in the distance. Until the moment of his death, the dragon did not know that he died because of someone trying to sell equipment... —— Also known as: "I Own a Weapon Shop", "Artifact Supplier", "I Open a Weapon Shop, What Happened to the Hundreds of Hundreds of Artifacts?" ", "I can synthesize unlimited artifacts"... Etc.