On the way to the entrance of Black Isotta which faced Bramble Forest, Grimm had been thinking about the academy's compulsory task assigned by Peranos twice a year.
"The destination of this task is on the border of Black Isotta and the Compass Academy, where a magical stone vein is located. Although the vein produces 1 million low class magical stones annually, the production is only equal to 100 high-grade magical stones. That's not an amount that could change the big picture. It's, therefore, a task for students. Peranos asked me to do it just because travel to the place is long enough. "
"As for the rewards, we need to earn 50% of the magical stone production for Black Isotta and once we did it, the five students involved in the task will get 1,000 magical stones as reward. If Black Isotta gets more than 60%, the student who submits the Pact will receive the extra share over the 60% of the yearly production! "