Estelle and her brother are in the wrong place when chaos breaks, and they embark on a rescue mission to find their father.

Ten years ago, a massive invasion by the Erebonian Empire almost shattered the Kingdom of Liberl, piercing to the heart of Capital City before being driven back by a determined counteroffensive led by Cassius Bright. Now, as the invaders pace behind the northern borders, coveting the small kingdom's magic and high technology, Liberl slowly rebuilds with the aid of the Bracer's Guild, whose mystical use of "Craft" is even more intrinsic to the nation's defense than its own army. For young Estelle Bright, daughter of Cassius, this is all just ancient history that she and her adopted brother Joshua learned as kids. But history has a way of repeating itself, and as they prepare to join the Bracers Guild themselves, sinister forces are preparing to thrust them into the familiar family situation of being in the worst possible place when mayhem breaks out. Because when their father's airship goes suddenly missing, of course it only makes sense to two green, but extraordinarily capable, young teenagers to strike out on a rescue mission of their own.—Sentai Filmworks

Ten years ago, the forces of the Erebonian Empire invaded the Kingdom of Liberl, nearly reaching the heart of the Capital City before Cassius Bright led a determined counteroffensive that drove them out. Liberl has managed to rebuild by using the special mix of magic and technology that the Erbonians covet. As they prepare to join the Bracers, whose use of "craft" is vital to the nation's defense, Cassius' daughter Estelle and her adopted brother Joshua learn all too well that the threat of another invasion is ever present. When Cassius' airship suddenly goes missing, the younger members of the Bright family find themselves at a pivotal point in history, deciding to launch a rescue mission by themselves in THE LEGEND OF HEROES - TRAILS IN THE SKY!.—Sentai Filmworks

Ten years ago, an invasion by the Erebonians almost shattered the Kingdom of Liberl. Now Liberl rebuilds with the aid of the Bracer's Guild, whose mystical use of "Craft" is more intrinsic to the nation's defense than the army. For Estelle Bright it's all ancient history. But history repeats; as Estelle and her brother find themselves in the wrong place when mayhem breaks out. When their father's airship goes missing, they embark on a rescue mission of their own!.—Sentai Filmworks