特殊化石燃料「メテオリア石炭」によって蒸気機関が発達した世界。炭鉱で働く少年・カナタは劣悪な環境下でも勉学に励み、己を研鑽していた。そんな中、新鉱脈の開拓作業で、少年の運命の歯車は動き出す…!!
In a world where steam engines have been developed using a special fossil fuel called “Meteorian Coal”, Kanata, a boy who works in a coal mine, studies hard and improves himself despite the poor environment. Then, the boy’s destiny begin to turn as he works to open up a new vein of coal.
