2003-08-06 Daejeon, South Korea
Yoon Seo-Yeon is a South Korean idol under MODHAUS and the first revealed member of tripleS. She was revealed as S1 on May 1, 2022.
 |
'깨어' Are you alive? | Seoyeon - Self | 2025-05-12 |
 |
tripleS A Live 25 in Seoul day2 | 2025-07-13 | |
|
tripleS A Live 25 in Seoul day1 | 2025-07-12 | |
 |
Girls Never Die | Seoyeon - Self | 2024-05-08 |
