SeoYeon

윤서연 · 尹舒姸 · Yoon Seo-yeon

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Reveal teaser · YoonSeoYeon.SSS

S1 Yoon Seo-yeon is the first SIGNAL. Revealed 1 May 2022 — the group's anniversary date — she walked into the first HAUS with zero trainee hours and set the temperature of the project. A Daejeon vocalist, later captain of +(KR)ystal Eyes' sister wave LOVElution, then Neptune, then ASSEMBLE25. Mid-range, unforced, the member WAVs still treat as the door.

Habits the camera already knows

Game-sharp unnie. First in, last to drop a Nintendo round in the HAUS. Badge War Season 2 winner after finishing second in Season 1 — she reads rooms the way she reads a boss fight.

Sound & design

Dodger blue on a white SIGNAL. Mid-range vocal, unforced talk, the emotional pitch of the project. Neptune captain, LOVElution captain, ASSEMBLE25 leader — leadership as a habit, not a sash.

Title tracks she stood on

+(KR)ystal Eyes
Cherry Talk
Aesthetic
ACID EYES
Cherry Gene
Cherry Gene
LOVElution
Girls' Capitalism
ↀ MUHAN
Neptune
Fly Up
Beyond Beauty

Before MODHAUS

No trainee period. Contestant on Queendom Puzzle (24th).

Notes

First member revealed; the calendar of tripleS starts with her.
Chungnam Girls' High School graduate; originally preparing a college retake.
Queendom Puzzle contestant with Lee JiWoo.
Known inside the HAUS as a game-sharp, warm unnie presence.
Objekt colour Dodger Blue — white SIGNAL, blue stamp.
Badge War Season 2 winner after finishing second in Season 1.
ASSEMBLE25 leader for 깨어 (Are You Alive).
HAUS nickname Hamham.