In the continent of Ezer, where steam and gears roar, humans rely on steam technology to build a huge empire. But no one knew that in the most remote border town in the empire, Ron, a young man picked up by villagers, had an ancient dragon sealed in his body.
Ron just wants to be a blacksmith in peace and build the most sophisticated steam machinery in the world. However, the villagers bullied him as an "outsider" in every possible way, and in the end, during a monster attack, they used him as bait and turned him over to the monster.
On the verge of death, the dragon awakens! Ron discovered that not only could he understand dragon language, but he could also absorb demon spirits to strengthen machinery. He began to arm himself with steam technology, creating flying steam armor, a gear chariot that could shoot lasers, and a giant mechanical beast that could be driven by dragon flames.
While the imperial nobles were still fighting for the patent rights of steam aircraft, Ron had already ridden the steel dragon he made and led a group of modified steam monsters on the road to revenge. He wants everyone to know: What you abandon will eventually become the existence you look up to.