Metallica Metalluca

In a world where rare metals power the economy, Minea risk their lives searching for them and earn great respect. A strange boy named Ruka arrives in the struggling town of Elza, causing destruction and announcing that he wants to become a Minea. Ruka is placed under the watch of Shella, a village girl whose younger brother is ill after being exposed to poisonous gas in the town’s closed mine. There may be more to the situation than first appears. Can Ruka help his new friends and, someday, become a legendary Minea?