Aoi Aoi is a DJ that performs exclusively for a members-only club, "Alter-Ego", which has a long history. Her androgynous looks attract many fans. She became captivated by Tsubaki's vocals and asked her to form a DJ unit. Usually she wears a poker face and doesn't show her true emotions, but she opens up her heart to her unit members.She is quite polite, even referring to those younger than her with the "-san" honorific.

Although Aoi may seem like a womanizer and often draws female attention to