Delilah shrugged as she lead her through the halls, "Well the ranking system is pretty simple. It's based on intelligence and performance. You base line rank depends on your entrance exams. You can improve this ranking either by improving your grades or challenging people with a higher ranking to battles to increase your ranking too. You'll increase one rank when ever you win a fight. You use the gauntlet to help initiate them." 

She explained before continuing, "The top ten students, like me, are in class A and are also on the student council. The first ranked student is Student Council President." By this time they had gotten to her door, "And here's your room. Does that answer your question?"