The Dragon Roars to the Sky

This is an unknown world. Here, the metal content in the land is as high as one-third, and there are many unknown magical metals. This is a magical world, where there is no gorgeous magic, no fighting spirit of all kinds, and no magical magic that can move the world. Some are just a kind of metal control technique that can control metals. This is a world of strong people. Only the financial controller is in charge...