- Known for
- Acting
- Born
- 2005-02-16 · 21 years old
- Place of birth
- Seoul, South Korea
Siyoon
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.
