SeoYeon (tripleS)

For other people known as 'Seoyeon', see Seoyeon.

SeoYeon
Concept photo for tripleS msnz <Beyond Beauty>
Background
Other name(s)	S1
Birth name	Yoon Seo-yeon (윤서연 / ユン・ソヨン / 尹舒姸)
Birth date	August 6, 2003 (2003-08-06)
Birth place	Seonhwa-dong, Jung-gu, Daejeon, South Korea
Height	160 cm (5 ft 3 in)
Blood type	B
Career
Occupation	Singer
Group debut	February 13, 2023 (tripleS) May 4, 2023 (+(KR)ystal Eyes) July 6, 2023 (ACID EYES) August 17, 2023 (LOVElution)
Years active	2022–present
Agency	MODHAUS
Associations	tripleS +(KR)ystal Eyes LOVElution ACID EYES Neptune Queendom Puzzle
Fandom
Color(s)	Dodger Blue
Related Wikis
TripleS Wiki

SeoYeon (서연) is a South Korean singer under MODHAUS. She is a member of the girl group tripleS, leader of the sub-units LOVElution and Neptune and a member of the sub-units +(KR)ystal Eyes and ACID EYES.

She is also known for being a contestant on the survival show Queendom Puzzle.

Career

2022-present: tripleS, Queendom Puzzle

On May 1, 2022, she was revealed as the first member of the upcoming girl group tripleS.

On September 25, 2022, it was announced that she had been placed in +(KR)ystal Eyes.

tripleS debuted on February 13, 2023, with the mini album Assemble.

On April 23, 2023, it was announced that SeoYeon had been placed in LOVElution.

+(KR)ystal Eyes made their debut on May 4, 2023, with the mini album +(KR)ystal Eyes <Aesthetic>.

On May 26, 2023, Seoyeon was revealed as a contestant on the Mnet reality survival show Queendom Puzzle. The show's first episode premiered on June 13. On July 26, it was revealed that Seoyeon was among the first five contestants to be eliminated from the show.

On September 3, 2025, SeoYeon was placed as the leader of Neptune.

Discography

Participation releases

• "Queendom Puzzle Team Battle 2" ("Charismatic" as part of DROP The Beat) (2023)
• "Queendom Puzzle Rise Up" ("Rise Up" with contestants of Queendom Puzzle) (2023)
• Queendom Puzzle All-Rounder Battle 2 ("Overwater" as part of Queendom Team) (2023)

Filmography

Television shows

• Queendom Puzzle (Mnet, 2023) - contestant
• Gone PD (MBC, 2023) - contestant

Web dramas

• What Summer Likes (2024) - Baek Yeoreum

Music video appearances

• Acid Angel from Asia - "Generation" (2022)

Photobooks

• The Face - YoonSeoYeon.SSS (2022)

Trivia

• Her MBTI personality type is ISFP.
• Her sleeping habits includes keeping the lights on and snoring.
• She can cook steamed eggs.
• The members think that if she had another job, she would be a convenience store worker, office worker, hanbok model, or kindergarten teacher.

Gallery

Main article: SeoYeon (tripleS)/Gallery