Yukiji Katsura

Serving as both a world history instructor and the nighttime security guard at Hakuō Academy, this dedicated yet frugal educator lives on campus to prioritize her budget for alcohol. Though she initially poses a threat to Hayate’s enrollment due to her strict adherence to campus rules, her frosty demeanor melts after he rescues her from a clock tower accident. Alongside her group of rebellious students, she eventually becomes a staunch supporter of Hayate’s reputation.