Nao was born on January 26, 1985 in Noda, Chiba Prefecture, Japan. She is a singer and songwriter and was previously part of the pop duo FripSide.
On March 15, 2009, Nao stated on the fripSide Official Website that she had graduated from fripSide. She wanted to pursue a different musical career than her partner Satoshi and left the duo for a a solo singing career.