| Origin |
Seoul, South Korea |
| Debut |
November 24, 2025 |
| Number of Members |
6 |
| Members |
Yoon SeoYeon
Kim NaKyoung
Seo DaHyun
Nien
Kotone
SeoAh |
| Oldest Member |
Kim NaKyoung |
| Youngest Member (Maknae) |
SeoAh |
tripleS Neptune Members Profile
Yoon SeoYeon
| Full Name |
Yoon SeoYeon |
| Birthday |
August 6, 2003 |
| Birthplace |
Daejeon, South Korea |
| Age |
23 years and 2 months old |
| Height |
5 feet 3 inches (160 cm) |
| Zodiac Sign |
Leo |
| Blood Type |
B |
| MBTI |
ISFP |
| Position |
Leader |
Kim NaKyoung
| Full Name |
Kim Junseo |
| Birthday |
October 13, 2002 |
| Birthplace |
Ulsan, South Korea |
| Age |
24 years old |
| Height |
5 feet 5 inches (166 cm) |
| Zodiac Sign |
Libra |
| Blood Type |
O |
| MBTI |
INFP |
Seo DaHyun
| Full Name |
Seo Dahyun |
| Birthday |
January 8, 2003 |
| Birthplace |
Busan, South Korea |
| Age |
23 years and 9 months old |
| Height |
5 feet 3 inches (160.1 cm) |
| Zodiac Sign |
Capricorn |
| Blood Type |
A |
| MBTI |
ISFP |
Nien
| Full Name |
Hsü Nientz’u |
| Birthday |
June 2, 2003 |
| Birthplace |
Taipei City, Taiwan |
| Age |
23 years and 4 months old |
| Height |
5 feet 6 inches (169 cm) |
| Zodiac Sign |
Gemini |
| Blood Type |
O |
| MBTI |
ESFP |
Kotone
| Full Name |
Kamimoto Kotone |
| Birthday |
March 10, 2004 |
| Birthplace |
Tokyo, Japan |
| Age |
22 years and 7 months old |
| Height |
5 feet 3 inches (161.5 cm) |
| Zodiac Sign |
Pisces |
| Blood Type |
AB |
| MBTI |
ENFP |
| Instagram |
cotoc0la_ |
SeoAh
| Full Name |
Jeong Haerin |
| Birthday |
June 11, 2010 |
| Birthplace |
Gwangju, South Korea |
| Age |
16 years and 4 months old |
| Height |
N/A |
| Zodiac Sign |
Gemini |
| Blood Type |
O |
| MBTI |
ESTP |
| Position |
Maknae |
Member Ages: Oldest to Youngest
| Member |
Birthday |
Age |
| Kim NaKyoung |
October 13, 2002 |
24 years old |
| Seo DaHyun |
January 8, 2003 |
23 years, 9 months, 5 days old |
| Nien |
June 2, 2003 |
23 years, 4 months, 11 days old |
| Yoon SeoYeon |
August 6, 2003 |
23 years, 2 months, 7 days old |
| Kotone |
March 10, 2004 |
22 years, 7 months, 3 days old |
| SeoAh |
June 11, 2010 |
16 years, 4 months, 2 days old |
FAQs
How many members are in tripleS Neptune?
tripleS Neptune is a 6-member K-pop girl group. The group consists of Yoon SeoYeon, Kim NaKyoung, Seo DaHyun, Nien, Kotone, and SeoAh.
When did tripleS Neptune debut?
tripleS Neptune debuted on November 24, 2025, with their song Fly Up.
