Taken from the banned texts in the Imperial Library
Long ago, on the small continent of Altaria, two races mastered the art of magic. The first were the elves mastering the magics of life known as astral magic. The second were the demons mastering the magics of death known as umbral magic. The elves, fearing umbral magic, banded with the the other races on a crusade to wipe out the demon race. The crusade was all too successful, leading to the extinction of the demon race. The elves no longer contested, ruled Altaria forming the Altarian Empire.
Knowledge of the demon race and umbral magic have all been forgotton. The elves rule over Altaria and occupy the nobility of the empire, while the humans and beastmen that helped them remain commoners in the empire.
Cecilia Grey is your less than average human commoner. Her father is a member of a civilian organization known as the adventurer guild, and unlike many girls her age, she wants to join the guild to follow in his footsteps. How will her adventure unfold?