Yoon Seo-Yeon
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.
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.