Kizoku Gakuen no Fubunritsu

At an aristocratic academy in the Western Kingdom, a young noblewoman’s engagement is suddenly called off during a dance party. Though everyone knows how close the couple has been, Carol de la Cassata—the marquis’s daughter at the center of the commotion—cannot understand the reason for the rejection. Seeking answers, Carol turns to the student council secretary, a serious commoner reputed to give sound advice. Together with the frivolous prince who presides over the council, the secretary investigates the academy’s many incidents and the unwritten rules that shape its aristocratic society.