Magic school RPG is a grade-system based school. Every year, there is an optional tournament, to go up grades. The lowest grade is F-class, which people often bully. The most people are in D class. If you have some skill, you have A-class. If youre talented, SS class, natural, Y class, gifted XYZ class and Royal, with pure blood, Omni class. Every other class in between is just a "middle bridge".