A Decade in the Making
So here's a milestone worth talking about. Eunseoh (Son Ju-yeon), a member of the ten-piece K-pop group WJSN β also known internationally as Cosmic Girls β just held her very first solo fan meeting, and by all accounts, it was a deeply personal celebration on multiple levels.
The event, titled FIRST SCENE #, took place on May 23rd at Sungam Art Hall in Gangnam, Seoul, with two separate sessions held at 1 PM and 6 PM. What made this particular gathering so special? It landed right at the intersection of two big occasions: Eunseoh's 10th debut anniversary and her birthday. Not a bad way to mark a decade in the industry.
What She Said to Her Fans
After the fan meeting wrapped up, Eunseoh shared a set of behind-the-scenes photos on her Instagram β dressed in a soft-toned off-shoulder dress, clearly still riding the emotional high of the night. But it was her caption that really captured the mood.
"This first solo fan meeting, where I got to celebrate my 10th debut anniversary and my birthday while finally meeting fans I had been missing for so long..."
She went on to explain that she had personally been involved in the planning from the very beginning, putting her heart into every detail. And then she turned her attention to the fans themselves β her fandom, known as "Woo-jeong" β saying their response far exceeded everything she had hoped for.
"I felt once again that the love from Woo-jeong is always precious, and so much greater and more valuable than words can express."
She closed with a simple, warm message: "Thank you so much for coming. Let's meet again."
What's really interesting about this fan meeting is how it was structured. It wasn't just a music showcase β it was designed as a retrospective of sorts, looking back on ten years as WJSN's Eunseoh while also shining a light on her evolving identity as actress Son Ju-yeon. That dual framing says a lot about where she is in her career right now.
Ten Years with WJSN
For those less familiar with WJSN, a quick bit of context: the group debuted in February 2016 with the mini album WOULD YOU LIKE?, and has since built a loyal fanbase through a string of fan-favorite tracks. Songs like "MoMoMo," "HAPPY," "Boogie Up," "La La Love," and "As You Wish" have become signature moments in their discography. That last one, "As You Wish" from their 2019 mini album of the same name, has a particularly enduring quality β it tends to resurface on Korean music charts every year-end season, which is a testament to how deeply it's embedded itself in listeners' playlists.
Eunseoh has been a steady presence within the group throughout all of this. Standing as the tallest member, she's built a reputation for sharp, fluid dance lines and a high-energy stage presence. She's served as a sub-vocalist and lead dancer across WJSN's major performances, and her ability to adapt to different concepts β from the dreamy and ethereal to the bold and dynamic β has kept fans consistently engaged.
Beyond the Stage: Acting and More
Here's the thing about Eunseoh that global audiences might not fully appreciate yet: she has been quietly building a substantial acting career alongside her group activities. Under her real name, Son Ju-yeon, she's taken on a range of roles that show real range.
Her acting journey started with web dramas β she played Won Se-mi in Book CafΓ© of Life (2018) and its second season, then moved into more varied genres with roles in Dalgona (2020) and Jinx (2021). In 2022, she appeared in a special drama for Disability Awareness Day, demonstrating a willingness to take on socially meaningful projects.
More recently, she's been active on the big screen. In 2024, she starred as Ha Eun-byeol in the film Amoeba Girls and School Horror: School Foundation Day, a blend of comedy and horror. And 2025 has already seen her lead two more feature films: Good Work Today, where she plays Hong Yeo-won, and the horror-thriller Gwisi, where she takes on the role of Eun-jin. She's clearly leaning into genre diversity, and it's paying off in terms of establishing her screen identity.
A Multifaceted Career
Eunseoh's presence hasn't been limited to music and acting, either. Korean variety show fans will remember her guest appearance on the long-running Running Man back in 2016, where she impressed with both her athleticism and her natural on-screen energy. She later became a regular MC on Shikshin Road Season 4, a food travel program β a role that highlighted her warmth and ease in front of the camera outside of a performance setting.
She's also made a name for herself at the Idol Star Athletics Championships, or "Idol Olympics" as fans sometimes call them β a televised sports competition featuring K-pop idols. Eunseoh earned bronze medals twice in the 60-meter sprint, and then, in a standout moment, anchored the relay team to WJSN's first-ever relay gold medal. She's also taken home gold in ssireum (traditional Korean wrestling) and archery, which adds up to quite the athletic resume.
Looking Ahead
At 27, Eunseoh is at an interesting crossroads β seasoned enough to reflect on a full decade of work, yet clearly at the beginning of a new chapter, particularly in film. The FIRST SCENE # fan meeting felt like both a thank-you and a statement of intent: she's not slowing down, she's evolving.
For the fans who packed Sungam Art Hall on May 23rd, it was probably a night that lived up to every expectation. And if her message to them is any indication β "Let's meet again" β this is far from the last time she'll be standing on a stage just for them.
This article is based on reports from Topstarnews, Dong-A Ilbo, Lecturernews.
