As the power of the Sacred Blade wanes, Luke, Cecily, Lisa, and the Demon Blade Aria travel to the Militant Nation, seeking information on forging a new Sacred Blade to combat the inhuman Valbanill. Meanwhile, Siegfried and the Empire have nefarious plans of their own that would trigger a second Valbanill War. With the help of old friends and new allies, can Cecily and Luke find the strength to stand up against the encroaching darkness?