Steam technology and spring-powered engines have evolved since the finding of Blackrock Steel, which can shop vast levels of energy, but term of the incredible resource has spread far and wide. Whenever a horde of barbarian warriors referred to as Vangars sweep over the Frigid Ocean in massive airships fueled by precious but dwindling materials of dark tar-like oil, they are determined to learn the secrets of Blackrock Metal no matter what. They assault the administrative centre city, slaying King Ryshan and the about Tinker’s Battle entire royal family, and ravage the countryside, leaving a cloud of acrid black smoke as well as the stench of loss of life within their wake.

Breeze has been quite happy with the peaceful lifestyle of a pilot, shuttling nobles backwards and forwards in her spring-powered planes for years, but now the kingdom of Astatia offers once again been thrust into battle. The Vangars have taken Tinker captive and Breeze must rescue the clever old inventor who is a father to her for most of her life, but she’s one possibility to defeat the Vangars. If she chooses to save Tinker instead, Breeze might shed that opportunity forever.

In the midst of the chaos, Breeze discovers herself trapped in the middle of a romantic conspiracy to wed her off to a pilot. She has no curiosity about marrying her would-be suitor, nor in the young Tal’mar warrior who would claim her as his very own . or will she? The only thing Breeze knows for certain is certainly that if she fails, the secret of Blackrock Metal will fall in to the hands from the Vangars and Astatia will face a dark future of slavery and ruin.