Sep 5, 2012-Aug 1, 2018
Cho Shi-Yoon (조시윤), best known by the stage name Siyoon (시윤), is a South Korean singer and actress. She was a member of the South Korean girl group, Puretty, under DSP Media. Siyoon and the group debuted on September 5th, 2012 with their single, "'(チェキ☆ラブ) Cheki Love" in Japan.