[The College Of Magic]
While Archer was clearing the north, the emperor told all colleges and academies in the empire to put a hold on classes due to an upcoming holiday he was going to announce.
The celebration marked their triumph in the continent-wide war, a victory solely achieved by Archer as he traveled from kingdom to kingdom and destroyed them.
As some students unwound and relaxed, while some were waiting for the festival to begin, a select few were granted permission to venture into one of the college's dungeons.
When the first group of students and professors entered, they wandered from level to level killing any creatures that appeared.
Eventually, they were met with resistance as more beasts appeared and pushed them back to the first level due to the amount.
They had to retreat from the dungeon to alert the headmistress about the danger as the professor realized that a Beast Wave was starting.