Had four singles such as Hana (2007), Distance/I am,届...and Last Cross. Hana is an ending theme for the anime Blue Dragon though it wasn't very popular. Last Cross is one of her more well known songs and is featured as an opening theme in Katekyo Hitman Reborn.
She was once a part of the group, Sister Q, but decided to go solo and now works under the PONY CANYON FLIGHTMASTER label. Mitsuoka is from the Aichi prefecture of Japan.