First University had not only a group of wizards but also numerous magical creatures and their vassal tribes.
For example, fishmen, Ninfus, minotaurs, horsemen, giants, goblins, dwarfs, and so on. Unlike the fishman tribe, which was notoriously volatile and aggressive with a dark history and required constant surveillance, the other magical creature tribes enjoyed a slightly higher degree of freedom since they did not need to be closely monitored.
The most significant point was that these other magical creature tribes could choose to live off-campus.
Take, for instance, the giant tribe that lived permanently in the heart of Silent Forest, whose existence was mostly known by name rather than sight to many of First University's students. Many students, unfortunately, spent four years at First University without ever seeing a living giant.