A minor character in the Baka to Test to Shoukanjuu series. She is a Modern Japanese teacher at Fumizuki Academy. In the anime adaptation, as Akihisa Yoshii, Minami Shimada, and Mizuki Himeji are trying to escape from the raging Miharu Shimizu, they ask for her supervision approval for a Summoner Test War because it's the weekend and there is no other teacher in the vicinity. She's one of the three female teachers introduced in the series, although her appearance in the anime was short.

Baka & Test - Summon the Beasts
The story centers around Akihisa Yoshii, the "baka" of the title. His academy rigidly divides up the student body into classes based on the results of tests. The prodigies are in the A class with reclining seats complete with air conditioning, but Akihisa is in F class, the lowest rung of the school ladder which is furnished only with low, decrepit tables and worn-out straw tatami mats. A girl named Mizuki Himeji is actually one of the smartest girls in Akihisa's sophomore year, but she had a fever on test day and was pigeonholed into the F class. Besides Mizuki (who Akihisa secretly adores), the F class also has Yuuji Sakamoto, the class president who has been Akihisa's friend and partner-in-crime since the freshman year. The school happens to have developed experiments to summon fantasy creatures, and Akihisa decides to rally F class to take on the higher-tiered classes and seize their perks. The F class uses the summoned creatures in an all-out battle for school supremacy.