FictionJunction is a solo project of Kajiura Yuki (梶浦由記) with various female vocalists. Each vocalist forms a Japanese pop band with Kajiura as the composer. The first and most popular band is FictionJunction YUUKA with the hits "Akatsuki no Kuruma" and "Honoo no Tobira". Two member of the project, KEIKO and WAKANA were sent to Kalafina, a group formed Kajiura and signed with Sony Music Entertainment. In February 2009, Kajiura brings all vocalists of FictionJunction together to revive the project. The band is currently signed to Victor Entertainment's sub-label, flying DOG.
FictionJunction project first formed by Kajiura Yuki with Nanri Yuuka as FictionJunction YUUKA. Their debut song, "Akatsuki no Kuruma" was first featured in the fourth suit CD of the anime Mobile Suit Gundam SEED. FictionJunction YUUKA officially debuted with the single "Hitomi no Kakera" in May 2004. Because of the popularity of the Gundam SEED series and fan favors for the song, "Akatsuki no Kuruma" was released separately as their third single in September 2004. One year later, their next single, "Honoo no Tobira" became the first voice actress single to hit #1 on Oricon daily charts. During that time, Kajiura also found other vocalists for the project. FictionJunction ASUKA debuted with the single, "everlasting song" on February 21, 2005. Other vocalists just released their songs through soundtrack albums written by Kajiura. She also brought KEIKO and WAKANA to Kalafina. By the end of 2008, Kajiura announced that she will come back with FictionJunction project after a short hiatus from July 2007. FictionJunction released a compilation album in February 2009. Kajiura also announced that they will perform the opening theme for Pandora Hearts, an anime scored by Kajiura.