Hyoukaku no Meteoria

Synopsis

It's a world where the steam engine has been developed using a special fossil fuel called "Meteorian coal." Kanata, a young boy working in a coal mine, studies hard and strives to improve himself despite the harsh environment. Wherein, as he starts to mine a new vein of ore, the gears of the boy's destiny start to turn...!! (Source: Futabasha, translated)