|Data Carddass Game||none|
|Anime||Girl Meets Girl (flashback only)|
|Singing Voice||Nemu Yumemi|
Guppy (グッピー Guppī) is Aoi's inspiration as an idol and she is also a Futuring Girl user. She appeared as a flashback character in Episode 40, where she sung Summer Summer Vacation! (さまさまばけーしょん！ Sama sama Bakēshon!). This is her only appearance in the anime.
Guppy is a fair skinned girl with orange-brown hair worn in curly twintails held by frilly pieces of material. Her bangs are straight cut, while her eyes are a bright, clear shade of blue. She often wore makeup.