From selective closure where one could only exit, and not enter, it was "progressed" to a complete lockdown, with no permission to leave nor enter.
Moreover, Mesopotamia University also circulated a rumor that it would contract its realm of power soon.
A month later, Mesopotamia Prefecture was completely locked down.
Warnings were issued to wizard organizations operating businesses in Mesopotamia Prefecture to withdraw early and avoid potential losses.
Given that Mesopotamia University forcefully sheltered a fugitive family from Ravensmouth College despite the latter's opposition and negotiation, this extreme reaction seemed reasonable.
After all, any wizard who had lived for an extended time was aware of Great Sage Revo's temperament.
The phrase 'retaliation for every slight' couldn't be more accurately applied to the Great Sage Revo.