Daughter of a noble house, Aria Bellerose, has big dreams of following in her family's footsteps as warriors and generals. But when a marriage proposal between her and the crowned prince Anthony is forced on her by the emperor, she'll have to find a way to outmanoeuvre his machinations and secure her independence. This puts her in direct competition with her athletic rival Zeke for the only position in the country that will put Aria out of the reach of Anthony and the Emperor forever: the Royal Knights.