The band's song "신기루 (Mirage)" also was used as the ending theme to the Japanese anime Black Blood Brothers soon after the song's album release.
She debuted as a magazine model, and first gained attention in 2006 by appearing in two music videos by Alex Chu and Ji Sun.
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Yoon first caught the public's eye in 2006 in Alex Chu and Ji Sun's music videos for "Very Heartbreaking Words" and "I Love You," and received the moniker of "Snail Girl."