Chiharu has short black hair and purple eyes.
She wears a white and orange shirt with a white shirt over top of it. She has blue pants and wears a tan-colored apron around her waist, because she is the owner of a bakery.
Chiharu is a very kind, encouraging and uplifting woman to her children and Valt's friends. She cares about her son's wins and makes him feel at home through making him special Bey Bread. She is also very courteous to strangers, like when Naoki Minamo visits their home in search of Valt Aoi. She easily understands how her son is feeling, like when Valt is discouraged after his loss to Wakiya or when he misplaces his Valtryek, and she comforts him when he is sad. She also loves the twins, Nika Aoi and Toko Aoi a lot. These parts of her personality make her a great mother.
Chiharu is very understanding towards her son and tries to help him in any way she can. She admires his bey spirit and his love of beyblade, and helps him reach tournaments as well as bakes him his favorite bread. Sometimes, Chiharu tries to push Valt towards improving his concentration in doing his chores, and the two of them disagree, but they work it out in the end. Overall, the two have a positive relationship.
Chiharu also cares about the two of them very much, and also helps them with their love of beyblade. When Valt is sad, she encourages them to go talk to him and make him feel better. Nika and Toko love working at the family bakery, Aoi Pan, and she appreciates their help.
While Chiharu and Ange have yet to have any on-screen interactions, it is revealed that Chiharu gave Ange her recipe for Beyblade Bread.
- The name Chiharu means "thousand" (千) (chi) and "spring" (春) (haru).
- Chiharu's surname Aoi means "blue, pale" (蒼) (ao) and "well, mine shaft, pit" (井) (i).
- Chiharu is the only Burst character to make a physical appearance in Beyblade Burst Turbo whose appearance does not change.