Reol started as an utaite on Japanese video sharing website Nico Nico in 2012, where she covered Vocaloid songs almost exclusively, and often relied on autotune to fit the genre. Her natural singing voice is high with boyish qualities and described as shota.
Reol is the vocalist in the unit REOL, which is composed of herself, composer GigaP, and movie creator/director Okiku.