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🔹 Introduction

250710 @onepact_ 4th Mini Album [ONE FACT] N Ver. - SM (1).jpg

Stage Name: Seongmin (성민 / ソンミン)

Birth Name: Oh Seongmin (오성민)

Birthday: August 25, 2001

Age: 23 years old

Position: Vocalist, Visual

Birthplace: Suwon, Gyeonggi-do, South Korea 🇰🇷

Nationality: Korean

Ethnicity: Korean

Language: Korean, Japanese

Height: 181 cm (5’11”)

Weight: 62 kg (137 lbs)

Blood Type: O

Zodiac Sign: Virgo

MBTI Type: ENFJ

Emoji Representative: 😻🐶

Hobby: MBTI over immersion, Eating, Cat cradling, and Cleaning

Previous Group: TO1 (April 2019 - June 2022)

🔗 Twitter: @uiw6uns0

🔗 Instagram: @xmnrome

Spotlight

https://www.youtube.com/watch?v=oU9V2KYSXT8

<aside> ✅ SEONGMIN participated in a survival show called ‘World Klass’ way back 2019 and debuted in TOO/TO1 after placing 8th place.

In the show’s debut group, TOO, his assigned element is ‘Metal’, color is ‘White’, and direction is ‘West’.

</aside>

Featured Video

https://www.youtube.com/watch?v=InQjf3C6pxY

ONE PACT 원팩트 'Signal (SEONG MIN Solo)' SPECIAL VIDEO July 7, 2025

Seongmin’s stage name when he was still a member of TOO/TO1 is Jerome (제롬). He said that he wanted his stage name to be Siwoo/Xiu or Chanyool/Hanyool but the company just told him he was ‘Jerome’ the next day he was asked for his input.
His role model is BTS’ V since 3rd year of middle school because he has great facial expressions, is handsome, and has a lot of talent.
Seongmin’s favorite character is Kakao’s Niniz Jordi and has a huge collection of it (1)(2). On February 2, 2024, a SEONGMIN x NINIZ Jordi collaboration has been announced.
He choreographed his solo dance break in TO1’s Surf and helped with his duo dance with Yedam in ONE PACT’s Illusion.
Unofficial english name is Jerome/Jerry as per his and Yedam's Instagram live on 3/18/2024.
His nicknames are Tom&Jerome, Jerome Doongi (제롬둥이), and Jerome-Party (제롬잔치).
Seongmin has a cute dimples that resemble a cat’s whiskers.
He likes words that are cute to say like ‘Booty’ and ‘Cloud’.
Seongmin’s childhood dream was to become a comic book writer.
His favorite animals are dogs and cats and he likes pastel colors.
In school, his most favorite subject is English and the least are Social studies and Mathematics.
Has a 3rd degree in Taekwondo.
His specialty is taking photos specially selfies.
In BOYS PLANET, he passed his English name incorrectly (Sungmin) and he wasn’t able to correct it so he just went with that name all throughout the show.