YooYeon
Acid Angel from Asia · EVOLution
Profile
The eldest member highlighted by the official profile for her leadership within tripleS. She has promoted through Acid Angel from Asia and EVOLution.
As S5, YooYeon is part of tripleS’s 24-member full-group system, in which members also promote through fan-selected and concept-based Dimensions. She participated in the group’s full-lineup eras including ASSEMBLE24, ASSEMBLE25 and the 2026 ASSEMBLE26 LOVE&POP pt.1 project.
Career Highlights
ASSEMBLE26 · LOVE&POP pt.1
Participated in the 24-member “Baby Flower” comeback and full-group promotions.
ASSEMBLE25
Participated in the full-group “Are You Alive” era.
ASSEMBLE24
Joined tripleS’s first full 24-member album era, led by “Girls Never Die.”
S5 · YooYeon
Introduced as part of tripleS’s sequential S-member system.
Official Social
News & Further Reading
Personal SNS, member news and official references · newest first.
Use the official member profile and @triplescosmos channels until an individual account is officially announced.