SeoAh

GLOW

Profile

The youngest member of tripleS, born in 2010, with a confident personality and taekwondo listed among her skills on the official profile. She joined through GLOW.

As S23, SeoAh is part of tripleS’s 24-member full-group system and participated in the full-lineup ASSEMBLE24, ASSEMBLE25 and 2026 ASSEMBLE26 LOVE&POP pt.1 eras.

S Number

S23

Stage name

SeoAh

Full name

Jeong HaeRin

Date of Birth

June 11, 2010

Nationality

South Korean

Height

158 cm

Agency

MODHAUS

Key Dimensions

GLOW

Career Highlights

2026

ASSEMBLE26 · LOVE&POP pt.1

Participated in the 24-member “Baby Flower” comeback.

2025

ASSEMBLE25

Participated in the full-group “Are You Alive” era.

2024

ASSEMBLE24

Joined the first full 24-member album era led by “Girls Never Die.”

Member introduction

S23 · SeoAh

Introduced through tripleS’s sequential S-member system.

Official Social

Explore Further

News & Further Reading

Personal SNS, member news and official references · newest first.

OfficialtripleS official website ↗

Personal SNSNo separate verified personal Instagram/X account is linked from the official tripleS profile.

Use the official member profile and @triplescosmos channels until an individual account is officially announced.

Official Member VideoSeoAh · tripleS official profile ↗

August 2026 · CBC GlobeSeoAh is selected for tripleS’s second Ballad Dimension ↗June 2026 · STARNEWSSeoAh joins the full 24-member Music Bank win ↗

Official / MODHAUSSeoAh · tripleS official SSS video ↗

KWaveScope member profile · reviewed October 7, 2026.