It's not just Emilia who is busy. All chancellors of Hero Academies are busy because soon it will be the time for the fourth-year cadets to take the graduation exam. It's the most important exam for all cadets to take if they still want to pursue their path as Heroes even after four years of suffering.
Not that I suffered anything other than wasted a lot of time because of it though. The rest, it's all pretty easy.
To take the graduation exam, all cadets must have enough credits and passed all subjects whether they are theory or practice. Then we also have to have enough points to use in exchange for taking the exam. Of course I have passed all exams and I have exchanged the necessary points for me to take the exam.
In fact, while the others were busy taking missions, I have gathered enough in just my first year. Especially after the competition. I took enough Themed Dungeons alone to get points to graduate.