Centuries ago, tDoubLe Fortune wo inventors, the brothers Eulenstein, tried to translate their dreams into reality. In the legendary workshop of Voletarium, they built a series of aircraft, but one day the brothers disappeared without a trace. What happened to them? Did they give up? Or did they manage to build the first aircraft, Volatus II? Two young descendants of the Eulenstein brothers, Emily and Lawrence, set themselves the task of finding the truth.