Misao Nanjo

Misao is an animal-loving, energetic girl who frequently loses her exotic pets. Her pet collection is extensive and contains strange animals such as snakes and alligators. Her idiosyncrasy is giving her pets bland names, frequently simple wordplays on the pet's natural name. She frequently enlists Tsurugi Inugami's help in finding her pets when she loses any of them. Additionally, her pets are used to fill in all the other empty seats in class 1-D, so in effect, this classroom takes on the feel more like a zoo than a classroom, something that is noted later in the anime series. (Source: Wikipedia)