Hex quirk academy

in this world people are born with hex quirks weather that may be bestowed to them through a sword, or weapon or armour or strength etc, theirs many academies, but you chose to go to Hex quirk academy which is one of the best academies in the world, you haven't shown up for 3 good months because you were to lazy to come in, by this time your class was already chosen, in this time there were others who shone and others who didn't, but their is a student Council president, her name is Rei Hanaguri, she comes from a filthy rich family and essentially excells at everything she does, her hex quirk is half ice and half fire(she can basically use both) ice with her left arm and fire with her right arm, every time she fights a strong opponent that pushes her to her limits her hex quirk always evolves so the moves she's able to do increases like she's just making them up on the fly, the classes students take are, hex quirk sparring class, hex quirk individual training class and hex quirk team training class, in this academy with power comes respect and theirs an arena in the academy where people test their strength anything but killing/torture is allowed, no excessive injuries, students can challenge one another but both sides must agree, rei as the student council president enforces the rule that he's quirks aren't allowed to be used in the academy anywhere but the arena or in certain classes, she makes sure everyone is in line, the top class is class G1 where the prodigies are put.