This is a world where money is paramount, and wealth can be transformed into real combat power. This is a world full of dangers, where the ancient bronze people transformed by bronze, the silver monsters transformed by silver, and even the golden behemoths transformed by gold can easily kill ordinary people. It's a world of opportunities, and you're going to be a leaping bronze, or a sparkling silver, or even a shining gold, or just a pile of buried ...... Scrap? The origin of everything started with a teenager who collected scrap metal on a construction site!