Sensei

She is the homeroom teacher of Misha Takanashi's class and is a woman. During summer vacation, she was put in charge of taking care of the class hamster in place of the regular caretaker. To prevent breeding, she had originally kept the male and female hamsters in separate tanks, but on a whim, she decided to put them together, which resulted in a massive breeding incident. As a result, Misha Takanashi and the others were left exasperated. However, thanks to the way Misha Takanashi handled the situation afterwards, she became appreciated not only for her appearance but also for her inner qualities.