[3] Aira Yūki debuted with the release of her first single on April 25, 2007, "Colorless Wind" as the opening theme for the anime Sola.
[4] Her second single was released on August 8, 2007, with the title track, "Zankoku yo Kibō to Nare" (残酷よ希望となれ) being the second opening theme for the anime Idolmaster Xenoglossia.
[5] Yūki released her third single "Sekai no Namida" (セカイノナミダ) on February 6, 2008, as the ending theme of True Tears.
The single's title track was used as the second ending theme for the anime adaptation of Tatakau Shisho: The Book of Bantorra.
[14] She also performed live at the first run of Lantis' "Rock'N Lan Carnival" together with Sayaka Sasaki, Yōsei Teikoku and Hironobu Kageyama.
[15] Yūki released her eighth single, "Hoshi o Motomete" (星を求めて, "Seeking for the Stars"), on October 27, 2010.
[18] Due to the 2011 Tōhoku earthquake and tsunami, the event and her appearance with Yuuka Nanri as FairyStory at the Chiba TV Anime Carnival has been suspended.
[20][21] She performed the ending theme of the first two episodes of Space Battleship Yamato 2199 titled, "Hoshi ga Towa o Terashiteiru" (星が永遠を照らしている).
[25] Her ninth single, "Kanashimi wa Dare no Negai demo Nai" (悲しみは誰の願いでもない, "Sadness isn't Anyone's Desire") is one of the two ending themes for the second season of Horizon in the Middle of Nowhere, and was released on August 8, 2012.
[28][29] In July 2013, it was announced that she would perform the insert song and ending theme of Mobile Suit Gundam Age: Memory of Eden called "Mirai no Moyō" (未来の模様).