FictionJunction ASUKA is a Japanese pop duo formed by Kajiura Yuki with Katou Asuka. They released their debut single "everlasting song" on July 21st, 2005. The English version of the title track was featured as the an insert song while the Japanese version of the title track was used as the ending theme song on the last episode for the anime Elemental Gelade. After its release, ASUKA left FictionJunction project to pursue her solo career and later performed under new stage name, Yuuki Aira.
- Katou Asuka (vocals and chorus)
- Kajiura Yuki (lyrics, music composition and keyboards)
- Kaida Yuriko (chorus)
- [2005.07.21] everlasting song