Aira Miyamoto is a supporting character in the anime Tsukigakirei. She is a third-year student and a classmate of the main characters. Aira is widely regarded as the most attractive girl in her class, a fact she is privately aware of, and she naturally assumes a leadership role among the female students. Despite her prominent social standing, she is a so-called ghost member of the tennis club, rarely attending practices or participating in club activities.

In terms of personality, Aira projects an image of strong-willed confidence and high pride. However, beneath this assertive exterior, she possesses a surprisingly sincere and straightforward nature. One of her notable traits is a weakness for direct and forceful overtures from others; while she can appear tough, she is easily flustered by teasing or straightforward compliments. This is most clearly seen in her interactions with Tsubasa Kaneko, a male classmate. When Kaneko calls her cute, Aira is immediately overcome with embarrassment and blushes deeply, revealing a softer, more vulnerable side that contrasts with her usual confident demeanor. This key relationship shows that her motivations are not simply about maintaining social status, but also navigating genuine, if awkward, romantic attention.