Sarcasm is irritating, but it's useful.

In an academy dominated mostly by nobility, Dagones, a commoner by birth, feels out of place and uncomfortable. Provoked by his homeroom teacher An Fitnesse, who is an aristocrat supremacist, Dagones ends up making a promise that he must rank in the top ten of the school in the next geography exam or face expulsion. To make matters worse, due to his teacher's interference, only Dagones is left in the dark about the exam's range of material…… As if to mock this desperate situation, Digress, a noble young lady classmate, approaches him with cutting remarks……?