Chiyo Mihama is a fictional character from the anime and manga series Azumanga Daioh. She is known for her youthful appearance, as she is a 10-year-old girl who is exceptionally intelligent and attends high school with older students. Chiyo is characterized by her cute demeanor, large glasses, and pigtails, which contribute to her endearing personality. Despite her age, Chiyo often displays maturity and wisdom beyond her years. She is a kind and supportive friend to her classmates, including Tomo Takino and Sakaki. Chiyo's interactions with her peers highlight themes of friendship and the challenges of growing up in a comedic and lighthearted manner.