Acting
Kim Si-yoon
February 16 2005- Place of birth: Gwangmyeong, Gyeonggi-do, South Korea
- Gender: Female
- Also known as: Siyoon, Kim Siyoon, Kim Shi Yoon, Kim Shi-yoon, 김시윤
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.
