Nefeli Fasouli was born and raised in Athens. At the age of six she started violin and music theory studies at the Athens Music Assosiation Conservatory. In 2013 she was accepted at the Athens Law School. Then she attended lessons by Elli Paspala, Marina Skiadaresi, Panos Dimas and Sofia Noiti, and she also studied at the Athenaeum Conservatory for two years with Sylvios Syrros. Then she continued with the vocal technique seminar at the Athens National Conservatory.

In 2016 she received a shcolarship by Fulbright Foundation in order to attend a student exchange project at the University of South Carolina. In 2018 she graduated the Athens Law School and continued her studies with the postgraduate project "Jazz and new technologies" at the Department of Music Studies of the National and Kapodistrian University of Athens (UoA).

Among others she has collaborated with Foivos Delivorias, Vasilis Kazoulis, Nikos Ziogalas, Panagiotis Kalantzopoulos and Makis Ablianitis.

Since 2017 she has been teaching modern vocals at the music school "Diicho".