Azusa Miura, a 21-year-old idol representing 765 Production as its oldest member, stands 168 cm tall with measurements of 91-59-86 and weighs 48 kg. Born on July 19 with blood type O, she debuted after junior college graduation despite lacking prior singing or dancing experience, trusting her skills would develop naturally. Her motivation stemmed from seeking her "destined someone" through increased visibility. Unintentionally oblivious to romantic advances despite her striking appearance, Azusa embodies a light-headed, unhurried "big sister" persona who dislikes being rushed. She avoids spicy foods and battles motion sickness. Her carefree demeanor coexists with chronic disorientation, frequently leading her astray even with navigational aids. Hobbies include dog walking, café visits, drama viewing, magazine reading, and extended phone chats with childhood friend Tomomi. She avidly practices fortune-telling for fellow idols, selectively embracing only positive horoscopes.

Azusa shares a close yet occasionally critical relationship with her mother, who urges her to act her age and reduce dependence. Repeated diet attempts falter due to snacking, reflecting her weight concerns. She also exhibits sporadic age-related self-consciousness, cutting her hair shorter to appear younger before joining subunit Ryuuguu Komachi. During *THE IDOLM@STER MOVIE: Beyond the Brilliant Future!*, she aids 765 Production's arena concert preparations and supports Haruka Amami through backup dancer challenges. Her miniconcert performance with Haruka and Chihaya Kisaragi coincides with dancer Kana Yabuki's onstage fall incident. Across media portrayals, Azusa demonstrates adaptable spontaneity and maintains persistent cheerfulness toward her career and personal aspirations.