Seo Dong Sung

Seo Dong Sung is a South Korean singer, songwriter, bassist, and actor.

He’s best known as a member of Korean band N.Flying, before expanding his career into acting and appearing in drama series such as Ongoing Loved One (2022) and Just One Bite (2018).

Career

After training for seven years in FNC Entertainment, Seo Dong Sung was finally announced as a trainee in the NEOZ SCHOOL program. There, he became the leader of the group NEOZ.

Later, he appeared with the band group in the survival program D.O.B (2016). Unfortunately, his group was defeated by the dance team of NEOZ.

That said, he managed to make his debut with the same group he worked with during the survival show under the name HONEYST in 2017.

It was an indie band and he was positioned as a bassist. However, the band disbanded just two years after their debut, which then became a turning point in his career.

On January 1, 2020, his agency released a statement that he would be joining the already-existing band named N.Flying as a bassist.

Aside from dabbling in music, he also has experience in being an actor. Some of his past acting projects include the drama series Ongoing Loved One (2022) and Just One Bite (2018).

Profile

Real Name: Seo Dong Sung (서동성)
Stage Names: Seo Dong Sung (서동성)
Also Known as: –
Nickname: Dong Sung (동성)
Birthday: April 9, 1996
Birthplace: Seoul, South Korea
Zodiac Sign: Aries
Nationality: South Korean
Religion: –
Professions: Actor, Bassist, Singer, Songwriter
Education: Unjeong High School
Hobbies: Playing games, working out
Facebook: –
Twitter: –
Threads: –
Instagram: @9_6_meng22
TikTok: –
YouTube: –

Height, Weight, & Physical Appearances

Height: 175 cm (5’9”)
Weight: 57 kg (126 lbs)
Blood Type: AB
Hair Color: Black
Eye Color: Black
Body Measurements: –
Shoe Size: –

Family

Father: –
Mother: –
Brother: –
Sister: –

Girlfriend & Dating History

He is yet to be involved in any publicly known relationship nor rumored to date anyone. He most likely prefers to keep his personal and dating private.

Net Worth

Even though he has never revealed the actual amount of his net worth, several sources estimated the number to be around $100 thousand to $1 million.

He seems to earn his income primarily from being a member of group band N.Flying, as well as working solo as an actor.

Plastic Surgery

There is no known information on whether he has undergone any cosmetic surgery to change his visual appearance.

Facts

Dong Sung has two younger brothers.
He debuted as a member of the boy band N.Flying in 2020.
Dong Sung was trained to become a bassist for a total of seven years.
He collects plushies.
His MBTI is ESFJ.
He is especially close with his group mate, Hun.
Dong Sung often works out.
He is an artist under FNC Entertainment.
His Chinese zodiac sign is the rat.
Before joining N.Flying, he debuted as a member of the indie band HONEYST.
He does not put on weight easily even though he eats a lot.
Dong Sung is not a picky eater, but he dislikes grapefruits.
He has a sturdy build.
Dong Sung is good at playing PUBG.
He can sing and dance very well.
Dong Sung likes the shape of his ears.
He enjoys collecting action figures and playing with Legos.
His ideal type is…

Drama Series

Ongoing Loved One (Naver TV Cast | 2022), as Hyo Min
Just One Bite (Naver TV Cast | 2018), as Woo Kyung’s Friend

TV Shows

2022 Idol Star Athletics Championships Chuseok Special (MBC | 2022), as a regular member
N.Flying Seunghyub’s Summer Camp Season 5 (VLIVE | 2022), as a regular member
Great Seoul Invasion (Mnet | 2022), as a regular member
New Festa (JTBC | 2022), as a guest
N.Flying Seunghyub’s Fall Camp – Picnic (VLIVE | 2021), as a regular member
Midnight Idol Season 2 (Naver TV Cast | 2021), as a guest
N.Flying Seunghyub’s Summer Camp: Season 4 (VLIVE | 2021), as the main host
Fact iN Star Season 2 (TBS | 2021), as a guest
N.Flying Seunghyub’s Fall Camp (VLIVE | 2020), as a regular member
Eungsu CINE (Naver TV Cast | 2020), as a guest
2020 Idol eSports Athletics Championships (MBC | 2020), as a guest
We K-Pop Friends (KBS | 2020), as a guest
N.Flying Seunghyub’s Summer Camp: Season 3 (VLIVE | 2020), as the main host
I’m Yours for 60 Minutes (tvN | 2020), as a guest
Idol Ability Market (YouTube | 2020), as a guest
K-Bob Star (YouTube | 2020), as a guest
Secret Friend of Idols (MBC | 2020), as a guest
Idol League: Season 2 (YouTube | 2020), as a guest
N.Flying Seunghyub’s Winter Camp (VLIVE | 2020), as the main host‏
2020 Idol Star Athletics Championships (MBC | 2020), as a regular member
Two Yoo Project Sugar Man: Season 3 (JTBC | 2019), as a guest
5 minutes to Six (Naver TV Cast | 2019), as a guest
Prison Interview (YouTube | 2019), as a guest
TMI NEWS (Mnet | 2019), as a guest
Omniscient Interfering View (MBC | 2018), as a guest
D.O.B (Mnet | 2016), as a regular member
Weekly Idol (MBC every1 | 2011), as a guest
Immortal Songs: Singing the Legend (KBS1 | 2011), as a guest

Quotes

“I prepared music to cheer up everyone who is having a hard time.”

“I wanted to show new sides of me in this first full album [of N.Flying]. The creation process wasn’t all that easy, of course. It was my first time, and I had some difficulties, but I had a lot of fun doing it with the members and I’ve learned a lot from it.”

“Rather than being an inspiration, I think I’m good at free thinking when I take a shower.”

“I love listening to Latin music. The rhythm is so fun that if we try it someday, I think I can have lots of fun.”

“Brazil, being the country of festivals, brings me strong childhood memories. When I was young, I watched a festival in Brazil on TV during Korea’s winter, and I wanted to go to a warm country more than anything else. I’d like to visit anytime, if I have the chance.”

FAQs

Who is Seo Dong Sung?

He is a South Korean singer, songwriter, bassist, and actor.

Who is Seo Dong Sung’s real name?

His real name is Seo Dong Sung (서동성).

What makes Seo Dong Sung famous?

He’s best known as a member of Korean band N.Flying, before expanding his career into acting and appearing in drama series such as Ongoing Loved One (2022) and Just One Bite (2018).

Where is Seo Dong Sung from?

He was born in Seoul, South Korea.

How old is Seo Dong Sung?

He was born in 1996, and he is 29 years old as of 2025.

When does Seo Dong Sung celebrate his birthday?

He celebrates on the 9th of every April.

How tall is Seo Dong Sung?

His height is 5’9″ or 175 cm.

Who are Seo Dong Sung’s parents?

He did not reveal the names of his father and mother.

Is Seo Dong Sung married?

He is not married. Furthermore, there is no information on whether he is in a relationship or not.

Who is Seo Dong Sung’s ex-girlfriend?

His ex-girlfriend is not known.

How rich is Seo Dong Sung?

His net worth is around $100 thousand to $1 million.

What is Seo Dong Sung’s nationality?

His nationality is South Korean.

Seo Dong Sung is no newbie in the music industry. Throughout his years of training, he has built a good resume of showcases and performances on various music platforms.