Edited by Aleryinth
This area was truly too wide. Even though the perimeter set by the Bei Du University wasn't very big, they had to ensure it was spacious enough to accommodate thousands of students training inside, and to have sufficient low-tier exotic beasts to hunt. Naturally they couldn't pick out a small area.
In the end, after discussing things with the military's security force, Bei Du University had drawn out an area spanning hundreds of square kilometers to conduct this activity.
Given such a huge area, let alone if there were thousands, you'd have a hard time seeing many people even if tens of thousands were thrown inside, as long as they were scattered properly.
As a result, the Freemasons' small elite teams easily snuck in, hiding themselves and slowly approaching their mission objectives.