Strong Girl: Badge War
윤서연 · Юн Со Ён · Yoon Seo Yeon · Seoyeon · 서연 · Соён · ユン・ソヨン · 尹舒姸
Yoon Seo-yeon, more commonly referred to as simply SeoYeon, is a South Korean singer and dancer under MODHAUS. On May 1, 2022, she was introduced as S1, the first member of the 24-member girl group tripleS.