Tales from Magic Academy

Tokine is a D-class magic boy with a crush on the AAA-class president Iori. On the verge of flunking out, stupid Tokine takes extreme measures, employing a forbidden power to cheat his way to success. It goes wrong, naturally, and at his amateur level he's unable to control the monster that gets summoned. Vice president Kouno comes to his rescue, then helps himself to Tokine, unfairly upgrading him to B-class so he won't be expelled... and so Kouno can do what he likes to the indebted blockhead...