Among the nations on the Zemurian continent, the mighty Erebonian Empire has been quick to stake its claim militarily; yet politically, ugly bouts of internal conflict between the upper class and commoners struggling to rise to power have been steadily intensifying with each passing month. The Noble and Reformist Factions have been none too kind to one another over the years, and tensions between the two only stand to worsen if compromises aren't reached in the very near future.

Rean Schwarzer, like any other citizen of the Imperial nation, is no stranger to these rising conflicts: the class system has been deeply interwoven into the tapestry of Erebonian culture since the days of old. As a seventeen-year-old student preparing for his new life at Thors Military Academy, however, he notices that his crimson uniform differs from the standard outfits issued to his peerstypically green for commoners, and white for nobles.

Enter, Class VII of Thors Military Academy. For the first time in the prestigious academy's history, rank means nothing and skill means everything. With nine hand-picked students of various backgrounds and abilities, Rean included, Class VII readies itself to dive deep into the political quagmire that threatens not only them, but the very foundations of the Empire.