Yui Horie is a Japanese singer and voice actress. She debuted in 1997 appearing in the series Photon the Idiot Adventures, released her debut single My best friend in 1998, and voiced Ayu Tsukimiya in Kanon. Horie provided the voice for a character in Vampire Knight and appeared in LORD of VERMILION in 2018. She has performed solo and released popular songs including Vanilla Salt and Adieu.