Aoi Miyake is the leader of the DJ unit RONDO in the D4DJ franchise and performs exclusively at the historic members-only club Alter-Ego. She has an androgynous appearance with short dark-grey hair, golden eyes, and a height of 170 centimeters. In high school, she had waist-length hair but still maintained an androgynous look. She binds her chest to preserve her silhouette. Aoi formed RONDO after becoming captivated by Tsubaki Aoyagi’s vocals. She typically displays a calm, reserved demeanor with a consistent poker face, rarely revealing her true emotions but opening up to her unit members. She is polite and uses honorifics like -san even for those younger than herself. Her androgynous, princely charm attracts attention and female admirers, though she does not exploit this and often seems oblivious to their feelings. She sometimes tires of overly passionate fans. As a child, Aoi lost both parents in a car accident that she survived because they protected her. Her father, Miyake Reiji, was a famous actor who kept his personal life private. After living with relatives, she became independent starting in middle school. She enjoys taking walks and making jam, likes sashimi and milk, and has an intense fear of insects including mosquitoes. She is a fan of the Vanguard card game, using the amateur nickname Smiling Knight, and dislikes cosplay due to embarrassment, especially revealing outfits.