Who Is Kim Sejeong (김세정)? The Journey from K-pop to the Rising K-Drama Star

If you’ve watched K-dramas or followed K-pop in the past few years, you’ve probably seen Kim Sejeong lighting up your screen—whether with her bright smile or raw emotional acting. But who is this multi-talented star who seamlessly went from idol to beloved actress?

Kim Sejeong (김세정) is not just another pretty face in Korean entertainment. From singing competitions to Netflix dramas, she’s proven that talent and hard work go a long way in a fiercely competitive industry.

Quick Facts About Kim Sejeong

• Full Name: Kim Se-jeong
• Birthdate: August 28, 1996
• Known For: I.O.I, Gugudan, The Uncanny Counter, Business Proposal
• Also a: Singer-songwriter and variety show regular

Kim Sejeong Standing Tall

From K-pop to K-Drama: Her Career Journey

Sejeong first gained national attention as a contestant on the survival show Produce 101, where she ranked second and debuted as a member of the project girl group I.O.I. Her popularity skyrocketed thanks to her talent and lovable personality.

After I.O.I disbanded, she joined Gugudan, another girl group under Jellyfish Entertainment, and also began her solo music career. But it wasn’t long before acting came calling.

Your Beloved Kim Sejeong

Breakout Acting Roles

Her major acting breakthrough came with The Uncanny Counter (2020), where she played a demon-hunting noodle shop worker—yes, you read that right. The mix of action, heart, and humor won over both fans and critics.

Then came Business Proposal (2022), a romantic comedy where she fully unleashed her chaotic, lovable energy and became everyone’s favorite fake-date office girlfriend.

Why Fans Love Kim Sejeong

Aside from her talent, Kim Sejeong’s down-to-earth personality shines through in interviews and variety shows. She’s open about her struggles, stays humble despite her fame, and always seems genuinely happy to be doing what she loves.

She’s relatable—someone who laughs easily, speaks candidly, and cries when she’s overwhelmed (in the most lovable way possible).

Other Notable Appearances

• School 2017 – Her first lead role in a K-drama, where she played a rebellious yet kind-hearted student.
• The Uncanny Counter 2 – Sejeong returned for season 2, continuing the supernatural adventures.
• Produce 101 / Busted! – Her variety show appearances are just as entertaining as her dramas.

Upcoming Projects

Sejeong has teased that she’s working on a new drama and music comeback. Whether she’s fighting demons or serenading fans, expect her to keep surprising us.

Where to Follow Kim Sejeong

• @clean_0828 on Instagram
• Her agency Jellyfish Entertainment’s YouTube for official updates

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FAQs About Kim Sejeong

Is Kim Sejeong still a singer?

Yes! She balances both singing and acting careers. She even writes some of her own songs.

What is Kim Sejeong's most famous drama?

Business Proposal is currently her most globally popular drama, especially among Netflix viewers.

Was Kim Sejeong in I.O.I?

Yes, she debuted through Produce 101 and was a top-ranking member of I.O.I before its disbandment.

How old is Kim Sejeong?

She was born in 1996, so she’s in her late 20s now and thriving!

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Kim Sejeong is proof that talent, grit, and a big heart can take you far. From survival shows to starring roles, she’s carving her own path—and we’re totally here for it.