Komari Koshigaya is a main character in the anime series 'Non Non Biyori'. She is the older sister of Natsumi Koshigaya and a student in the small rural Asahigaoka Branch School. Despite her petite stature and youthful appearance, she is in eighth grade. Komari often struggles with being mistaken for someone much younger, which is a source of comedic situations in the series. She is known for her determination to be seen as mature and is often the target of playful teasing by her friends and younger sister. Her character adds depth and humor to the slice-of-life storytelling of the series.