The first season opens by introducing the main characters, their pasts, and their ambitions. Orpherus, Eduard, Camus, Lui, and Naoji are five noblemen enrolled at the prestigious Rozenstolz Academy, where they belong to the Strahl class, a specialized program for future advisory officials in the royal palace of the small European nation of Kuchen. During their studies, an English writer named Isaac visits Kuchen, and the young nobles are forced to confront corrupt politicians, clandestine agents, attempted murders, and ambitious rivals both within and outside the school. These threats endanger the fragile peace of their country and even put the king’s life at risk.