Sarcasm is irritating but useful.

In an academy predominantly composed of nobility, Dagones, a commoner by birth, feels out of place and uncomfortable. Provoked by their homeroom teacher An Fitnes, who is an advocate of aristocratic supremacy, Dagones ends up making a promise: if they don't rank in the top ten of the next geography exam, they will be expelled. To make matters worse, due to their teacher's interference, only Dagones is left unaware of the exam's range of material...... As if mocking this seemingly hopeless situation, Digres, a noble young lady classmate, approaches with nothing but sarcasm......?