Aira Yūki

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Aira Yūki, born August 28, 1981, is a Japanese singer signed to Lantis. She has also used the name Asuka Katō and was part of FictionJunction Asuka. She began her music career in 2007 and is best known for singing anime theme songs.

Her debut single Colorless Wind came out in 2007 as the opening song for Sola. She followed with songs for other anime, including Zankoku yo Kibō to Nare for Idolmaster Xenoglossia and Sekai no Namida for True Tears. Her first album, Reflection, was released in 2008, and her second album Eternalize appeared in 2010. Notable tracks include Blue Sky, True Sky for Tears to Tiara, Lament for The Legend of the Legendary Heroes (opening), and Hoshi o Motomete for the Armored Trooper Votoms OVA. She also performed at Lantis events and later joined the unit FairyStory with Yuuka Nanri, participating in charity work after the 2011 earthquake.

In 2012 she released the album For My Dear... and contributed to Gundam AGE: Memory of Eden with Mirai no Moyō. She also performed the ending for BlazBlue and contributed to Broken Blade in 2014, writing the lyrics for that ending. Earlier in her career she used the name Asuka Katō and recorded jazz covers; she later revealed her past as FictionJunction Asuka. She has been married to Katsu since 2019.