is a pop duo, part of Japanese composer Yuki Kajiura’s solo project FictionJunction, consisting of Yuuka Nanri (vocals) and Kajiura (composition, lyrics and keyboards).
The pair first met at , a stage group for teenage girls where Kajiura wrote music for some of the plays and Nanri was a performer.
Their first recording was , an insert song in the popular mecha anime ''Mobile Suit Gundam SEED'', though their debut single was the opening of Madlax, , released on May 8, 2004.〔Though their first single was "Hitomi no Kakera", "Akatsuki no Kuruma" was actually recorded and released in an anime soundtrack previously.〕 On July 27, 2004, the ending theme to Madlax, "Inside Your Heart", was released. In the same year, because of its popularity and the fact that it was Gundam SEED's one-year anniversary, "Akatsuki no Kuruma" was released as a single, which at its peak placed at #10 on the Oricon weekly rankings and sold over 19,481 copies in the first week.
After a hiatus of exactly a year, an insert song for Mobile Suit Gundam SEED Destiny, was released, becoming the first voice actor single to hit #1 on Oricon daily rankings.
On November 23, 2005, the duo released their debut album, ''Destination'' which placed on the Oricon weekly rankings at #9.
On May 10, 2006, FictionJunction Yuuka released their fifth single after approximately eight months. That year, they also recorded a song, "Aikoi", for the ''Tsubasa Chronicle'' anime series, which was not released as a single but instead included in the anime's fourth original soundtrack. In November of that same year, they released the opening theme for Sunrise's Bakumatsu Kikansetsu Irohanihoheto, .
FictionJunction Yuuka held their first live concert entitled ''Premium Live 2007'' on February 8 and February 15 of 2007.〔(FJY blog ):January 29, 2007 entry. Retrieved 2007-02-03.〕 A new album, ''Circus'' was announced and it was released on July 4 of the same year.. As Kajiura is handling the music for upcoming anime ''El Cazador de la Bruja'', their seventh single, "Romanesque", became the ending theme of the anime above. ''El Cazador de la Bruja'' was produced by Bee Train, whose anime productions FictionJunction Yuuka has also done songs for previously.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』