Acting

Kim Si-yoon

Born 2005-02-16 · Seoul, South Korea3 series3 films

Kim Si-yoon, known mononymously as Siyoon, is a South Korean rapper, singer and lyricist under MYSTIC STORY. She is a member of the girl group Billlie and its sub-unit Moon Sua X Siyoon.

Kim Si-yoon's films on Charmy Movies →

Acting

2025KPOPPEDSelf1 ep.
2022Idol's Physical RaceSelf1 ep.
2020The Silence Of IDOLSiyoon1 ep.

Guest appearances

2025KPOPPEDSelf1 ep.
2023Idol's Physical RaceSelf1 ep.
2021The Silence Of IDOLSiyoon1 ep.

Also known as: 김시윤 · Billlie · Siyoon