After 10 Years, Kim Sejeong Finally Leaves Jellyfish — Here's What Comes Next

When Kim Sejeong walked into her first audition for Mnet's Produce 101 in 2016 as a Jellyfish Entertainment trainee, she was one face among 101 hopefuls. A decade later, she is leaving the agency that launched her career as one of the most versatile and accomplished artists in Korean entertainment — and every major talent agency in the country wants to sign her.

On March 17, TV Report confirmed that Kim Sejeong has officially decided not to renew her exclusive contract with Jellyfish Entertainment, bringing to a close a ten-year partnership that transformed her from an unknown trainee into a nationally recognized singer, actress, and variety star. In a message shared through her social media, Kim Sejeong expressed heartfelt gratitude toward the agency, writing that she was truly thankful for everything they had built together.

From Produce 101 to Triple-Threat Status

Kim Sejeong's journey at Jellyfish Entertainment reads like a blueprint for modern K-entertainment success. In 2016, she entered Produce 101 as the show's dark horse and finished in second place, earning a spot in the project group I.O.I. Her breakout moment came not from choreography or visuals, but from raw vocal talent — she performed with a sincerity that cut through the competition format's noise and won the public's affection.

Following I.O.I's disbandment, Kim Sejeong debuted again under Jellyfish as a member of the girl group gugudan. While the group struggled to replicate I.O.I's commercial success, Kim Sejeong's individual star continued to rise. Her solo track became a sleeper hit, and the entertainment industry began to recognize that her talents extended well beyond the idol framework.

The pivotal shift came with acting. Kim Sejeong transitioned to television dramas with a natural screen presence that surprised even industry veterans. Her performances demonstrated a range that few idol-turned-actors achieve: comedy, melodrama, period pieces, and romantic leads all fell within her grasp. By the time she renewed her contract with Jellyfish in May 2021 as a solo artist and actress, she had already established herself as a rare example of an entertainment polymath.

A Decade of Growth at Jellyfish

The relationship between Kim Sejeong and Jellyfish Entertainment represents one of the longer artist-agency partnerships in an industry known for frequent turnover. Founded by composer Hwang Se-jun, Jellyfish built its reputation on artists like VIXX and Sung Si-kyung before adding Kim Sejeong to its roster through the Produce 101 pipeline.

For Kim Sejeong, Jellyfish provided the stable foundation from which she could experiment with different creative directions. The agency supported her pivot from music to acting without forcing her to abandon either discipline. Recent projects have showcased the breadth of that dual career: her role in the sageuk drama The Tale of Lady Ok demonstrated period drama chops, while Intoxicating Romance for ENA showed her romantic comedy timing remained razor-sharp.

In her farewell message, Kim Sejeong acknowledged the trust that Jellyfish had placed in her throughout the decade. Industry observers noted that the separation appears amicable — a rarity in Korean entertainment, where contract expirations often generate public tension between artists and agencies.

The Hottest Free Agent in K-Entertainment

Kim Sejeong's departure from Jellyfish has triggered what Korean media are calling the biggest free agent race in recent memory. According to reports from JTBC and multiple industry sources, she has already met with several major agencies and is carefully evaluating her options based on three key factors: the scale of support for her projects, overseas promotion capabilities, and long-term activity plans that encompass both music and acting.

What makes Kim Sejeong such a coveted signing is the breadth of her appeal. At 30 years old, she occupies a professional position that almost no other Korean artist can claim: she is simultaneously a credible singer with a loyal fanbase, a proven leading actress with strong ratings track records, and an engaging variety show personality whose quick wit makes her a producer favorite. In an industry increasingly obsessed with specialization, her versatility is her greatest asset.

The agencies reportedly pursuing her include firms that specialize in actor management as well as those with strong global music distribution networks. The choice she makes will signal which direction she intends to take her career — whether she will lean further into acting, pursue international music opportunities, or attempt to maintain the all-rounder approach that has defined her decade at Jellyfish.

What the Industry Is Watching

Jellyfish Entertainment responded to the news by stating that discussions were ongoing but nothing had been finalized, adding that management duties would continue until the contract period formally concludes. The measured tone of the response reinforced the perception that both parties have handled the transition with professionalism.

For the broader Korean entertainment industry, Kim Sejeong's free agency carries significance beyond a single contract negotiation. She represents a generation of artists who emerged through the Produce competition system and have since outgrown the frameworks that launched them. Her next move will be watched closely as an indicator of how top-tier talent navigates the increasingly complex landscape of Korean entertainment, where the boundaries between music, acting, variety, and global content are more fluid than ever.

As gugudan's last remaining member at Jellyfish, Kim Sejeong's departure also marks the definitive end of an era for the group. But for Kim Sejeong herself, the narrative is one of forward motion. Ten years after a trainee from Anyang walked onto the Produce 101 stage and sang her way into the nation's heart, she is choosing to write the next chapter on her own terms.