A Top Student's Time Travel Opens up the Industrial Era of a Different World

The world view is set in a world of swords and magic. The protagonist is an engineer from the Blue Star Dragon Kingdom. He died of overwork and was reincarnated in the different world of Bragland. He was born in a family of adventurers. His parents renamed him Dorag, hoping that he would be as powerful as a dragon. In this strange world In this world, little Dorag quickly accepted this strange world. He slowly recalled the memories of his previous life. In his previous life, he was not only a top student, but also studied in various departments of the army. In this magical world, how interesting Dolag's adventure in another world would be.