Born in 1964. Since her school days, she has worked singing to her own piano accompaniment in a bar, nightclub, and hotel lounge. At the end of 1998, she released her first album "mariko." After repressed, it became a longtime hit on the free-listening menu at foreign-affiliated CD shops in Tokyo.In 2002, "Beyond" was founded as her management office and label. "Jun-ai," her CD single, was released in June, and her second album "Anata-e" in October. She has started live concerts at a pace of several times a year. In December 2003, two pieces of her music were used in "Vibrator," a movie starring Shinobu Terashima and directed by Ryuichi Hiroki, which became the topic of a conversation.In November 2006, she released "Yoru mo Hiru mo," a studio recording for the first time in four years.She was in charge of music (theme music: Andante, and insertion music: Kaze no oto) in "Un-Nan?" a movie set in Shimane Prefecture, her hometown, directed by Yoshinari Nishikori. (movie release: May 2008) In 2008, to commemorate the 10th anniversary of the sale of her first album, she performed seven public performances across the country on "mariko plays [mariko] tour."