Kalafina is a Japanese band formed by the composer Yuki Kajiura in 2007, mainly to perform theme songs for the anime Kara no Kyōkai. The band first appeared in January 2008 with two original members from Yuki Kajiura's FictionJunction project, Wakana Ōtaki and Keiko Kubota (not confirmed until the first Dream Port 2008 concert held on April 29, 2008). In May 2008, two vocalists Maya and Hikaru, who had been chosen from an audition of 30,000 participants held by Sony Music Japan and Yuki Kajiura, were confirmed as the final members of Kalafina.
Keiko Kubota (窪田啓子,Kubota Keiko?, born December 5, 1985) - vocals. She is a member of Kajiura's FictionJunction music project. She is most known for her low, deep voice in Kajiura's compositions. Before working with Kajiura, Kubota was also a member of the duo, Itokubo before their split.
Wakana Ōtaki (大滝若菜,Ōtaki Wakana?, born December 10, 1984) - vocals. She is also a member of FictionJunction.
Hikaru Masai (Hikaru, born July 2, 1987) - vocals.