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.
Siyoon has 3 screen credits in a career dating back to 2022. Signature works include the interlude of 11, Perfect Girl. Explore the interactive character relationship maps on each title page to trace how their roles connect across franchises.
