"Despite chronic under-enrollment, this class will be offered for the coming semester. Any mistake whatsoever will require student to retake course. Offered in conjunction with "Unfairness.""
-Description from Class Schedule menu.
This class gives a scaling "credit" bonus at the end of a level, which is to say, the amount of red crystals or credits you earn from how well you did on the floor. These are used to unlock more classes and/or donate to the counselor. It does not, in fact, give any additional experience or in-game benefits.