Kim Si-yoon

Known for: Acting

Born: 2005-02-16 (age 21)

From: Seoul, South Korea

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.

Filmography (6)

TV★ 3.1
KPOPPED
2025
as Self
MOVIE
the interlude of 11
2022
as Self
TV
Idol's Physical Race
2022
as Self
TV
The Silence Of IDOL
2020
as Siyoon
MOVIE
Perfect Girl
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MOVIE
Elena
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