"Aya is a central character in the manga ""The Kids Have Changed"". With her distinctive brown eyeglasses, short black hair, and blunt bangs, Aya cuts a distinctive but understated appearance. Her wardrobe is generally simple and understated, favoring comfortable t-shirts and jeans that allow her to move freely.

Although Aya is not the protagonist of the series, she plays an important role in shaping the narrative arc. Aya is a quiet observer, often letting events unfold around her without intervening. However, her calm demeanor and thoughtful insights make her a trusted confidante and sounding board for the other characters.

Aya is a talented musician, specializing in playing the bass guitar. Her love of music is an important part of her identity, and her instrument is frequently depicted in the manga. She is also an avid reader, often found curled up with a book when not practicing with her band.

Despite her reserved demeanor, Aya has a strong sense of justice and is not afraid to speak up when she feels something is wrong. This quality is demonstrated when she stands up to bullies, whether on behalf of herself or others. Her quiet strength and level-headedness make her a natural leader, and she often takes charge in group situations.

Aya's backstory is slowly revealed over the course of the manga. It is revealed that she grew up in a strict household with high expectations for academic success. However, Aya's passion for music led to friction with her parents, who did not see it as a viable career path. Aya's struggles with her family are depicted sympathetically, and readers are left rooting for her to succeed in pursuing her dreams.

Overall, Aya is a complex character with many dimensions and a distinct personality. Her quiet strength and passion for music make her a beloved character among fans of ""The Kids Have Changed""."