a scholar regime is the principality of school, and telling students what to do, and even the principal being a liberal, a tyrant, etc.
Cyrus: Hey! This school banned drinking water. No wonder why i am thirsty.
Darius: That, is because of the scholar regime the school has.
Cyrus: What is even a scholar regime?
Co-principal: We are... I shouldn't had made that law, but Kim Jong called me that i get spared if i make everyone thirsty. i rather get replaced.