Siyoon
- Cast
- Born
- 16 February 2005
- Place of birth
- Seoul, South Korea
- Known for
- Acting · Perfect Girl
Kim Si-yoon is a South Korean singer and rapper managed by MYSTIC Story. She was officially revealed as a trainee under MYSTIC Rookies on February 18, 2020. Now, she is a member of the girl group Billlie.
Filmography
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