A modern Japanese teacher who has Yamato Nadeshiko-like qualities and the sensibility of a woman from the countryside who receives looks from the nearby students. Even though she came to the city earlier than the main character, she still hasn't adjusted to the city life yet. She gets lost at large train stations, takes the stairs in tall buildings, and can't walk in a crowd of people. Because Komachi is from the countryside, she loves the outdoors, and although she hasn't been able to do so recently, her hobbies are hiking and camping. She likes buying stuff and, since the city has a lot of stuff, can't help but stay.