"[4] She met Lee Yongjin at a music festival in 2009, and he offered her an indie band.
[1] The band gained popularity since they topped the EBS Hello Rookie Contest in 2010.
[7] Prior to the release of the second album, Siya left the band, which became Yaya's solo project.
[2][8] She interviewed the album as "I am easily hurt, but I am not good at expressing emotions.
"[9] In 2016, she released the single Beauty is clumsy (미녀는 서툴러) and the EP Scarlet Shoes.