Kato has shoulder-length black hair that has bangs hanging on the right side and brown eyes.
She wears the number 16 jersey.
Kato is serious about the game and she is also supportive of the team.
Kato is a second year of the newly formed Warabis' who participates in the practice intra-squad match.
As a substitution player, she sits on the bench while waiting her turn to play in a match. She attends the team meetings and soccer practice.
- The name Aina means "love, affection" (愛) (ai) and "apple tree" (奈) (na).
- Aina's surname Kato means "add, increase" (加) (ka) and "wisteria" (藤) (to).