Diana's sister Luna and her father Robert were once among the greatest knights in the empire, but Luna left her nation behind, and her father has been stripped of his honor. A sorcerer now whispers into the emperor's ear and conducts unspeakable research to fuel the empire's insatiable need for conquest. In order to aid her father and better understand her sister's decision, Diana sets out to become an adventurer, her first step on the path to becoming an imperial knight. Will she find new friends and earn her knighthood, or be betrayed and fall prey to the empire's dark underside? The choice is yours!