The Shocking Truth About Se-Mi (Player 380) In Squid Game Season 2: Everything You Missed About Actress Won Ji-An

The character Se-Mi, known to millions as Player 380, has become one of the most talked-about, yet short-lived, figures in the new season of the global phenomenon, Squid Game. As of late 2025, with the release of the long-awaited second season, fans are clamoring for every detail about the newest contestants, and Se-Mi’s storyline—particularly her controversial and sudden death—has sparked intense debate across all online platforms. Her portrayal by the talented and rapidly rising South Korean actress, Won Ji-An, only amplified the character’s impact, leaving many to wonder who this breakout star is and what her future holds after her shocking exit from the Game.

This article dives deep into the character of Player 380, the actress who brought her to life, and the surprising plot elements that made her one of the most memorable new additions to the deadly competition. We'll explore Won Ji-An's impressive career trajectory and her confirmed 2025 projects, cementing her status as a major K-Drama talent far beyond the green tracksuit.

Won Ji-An: Biography and Rising Star Profile

Won Ji-An, the actress who embodied the fierce and compelling Se-Mi (Player 380), is one of the most exciting young talents to emerge in the Korean entertainment industry. Her sudden rise to prominence is a testament to her versatile acting range and captivating screen presence. While her time in the *Squid Game* arena was brief, her career is just taking off.

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• Birth Name: Kim In-Seon (김인선)
• Stage Name: Won Ji-An (원지안)
• Date of Birth: August 17, 1999
• Age (as of late 2025): 26
• Nationality: South Korean
• Management: Hiin Entertainment
• Debut: 2021 (with the Netflix series D.P.)
• Notable Roles: Moon Young-Ok in D.P., Joo In-Hae in Heartbeat, Se-Mi (Player 380) in Squid Game 2.
• Special Skills: Known for her versatility in action and dramatic roles; trained in Judo.

Won Ji-An’s journey to stardom began with a powerful debut in the critically acclaimed Netflix military drama *D.P.*, where she played the complex role of Moon Young-Ok. This was followed by her first lead role in the fantasy romance K-Drama *Heartbeat*, showcasing her ability to carry a series. Her casting in *Squid Game Season 2* was a major career milestone, instantly catapulting her to global recognition.

Player 380’s Controversial Role and Shocking Fate in Season 2

Se-Mi, or Player 380, entered the 37th iteration of the deadly competition with a reputation for being both fearless and strikingly beautiful, immediately drawing the attention of other contestants. Her backstory reveals she was approached by The Recruiter and, like many others, joined the Game to escape insurmountable debt.

The 'Thanos Team' Strategy

In a twist of strategy, Player 380 intentionally aligns herself with the 'Thanos Team,' a group of less intelligent, more brutal players led by a character named Choi Seung-hyun (also known as Thanos). The theory behind her decision was a calculated risk: she believed that playing the games with less mentally capable teammates would improve her own odds of survival by eliminating the competition more easily.

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This calculated, cold-blooded approach immediately set her apart from more sympathetic characters in the series. Se-Mi was portrayed as a strategic player willing to use her intelligence and charisma to manipulate the volatile group dynamics inside the dormitory.

The Sudden and Polarizing Death

The most shocking element of Se-Mi's arc was her untimely and brutal death. Her storyline ends abruptly during the chaotic dormitory violence that often occurs after the lights go out. In a moment of intense confrontation, Player 380 is killed by Nam-Gyu, one of the more violent members of the Thanos Team.

This plot point ignited a firestorm of fan reaction. Many viewers felt her demise was rushed, arguing that a character built up as a bold, charismatic strategist deserved a more pivotal role or a more dramatic exit in one of the actual games. The decision to have her eliminated by a fellow contestant, rather than a game master or a main character, left a sour taste for some, who saw it as an unsatisfying end for a character with so much potential.

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The controversy around Player 380’s self-destruction—her decision to challenge a violent character like Nam-Gyu—was seen by some fans as a narrative misstep, exposing a flaw in the writing of the new season's minor players. Regardless of the debate, her short but impactful presence confirmed Won Ji-An's ability to steal a scene, even in a supporting role.

Beyond the Tracksuit: Won Ji-An's Explosive 2025 Career Lineup

While the character Se-Mi's journey in *Squid Game 2* has concluded, the career of actress Won Ji-An is accelerating at an incredible pace. Her performance in the Netflix hit has opened doors to a slew of major projects, solidifying her status as a leading actress for the 2025 K-Drama season. The sheer volume and high-profile nature of her upcoming work is a clear signal that she is here to stay.

Three Major K-Dramas Confirmed for 2025

Won Ji-An has a packed schedule, with at least three major television series confirmed for release in 2025, spanning various genres and platforms:

• Made in Korea (Disney+): This highly anticipated series will see Won Ji-An take on the role of Choi Yoo-Ji. The project is expected to be a major production, continuing the trend of high-budget Korean content on global streaming services.
• Surely Tomorrow (JTBC): Also known as *Gyeongdoreul Gidarimyeo*, this JTBC drama casts her as Seo Ji-Woo. This role will likely allow her to showcase her dramatic depth in a more traditional K-Drama format.
• Tempest (Bookgeukseong): In this series, she is confirmed to play the character Kang Han-Na. The details surrounding this project suggest it will be another high-concept drama, further proving her versatility.

These roles, following her breakout success in *D.P.* and her high-impact appearance in *Squid Game Season 2*, illustrate a strategic career progression. She is transitioning seamlessly between supporting roles in global blockbusters and leading roles in domestic K-Dramas, establishing a broad and devoted fan base.

The Legacy of Player 380: Why Se-Mi Still Matters

Se-Mi (Player 380) may not have been a main character, but her inclusion in *Squid Game Season 2* is significant for several reasons. She represents a new wave of contestants who are highly strategic and willing to employ morally questionable tactics to survive, moving beyond the desperation seen in the first season.

Her character, despite the limited screen time, successfully generated buzz and debate, proving the show’s ability to create compelling, high-stakes drama even with minor players. Furthermore, the character served as a powerful vehicle to introduce the world to Won Ji-An, an actress whose career is now poised to dominate the K-Drama landscape for years to come. Fans who were disappointed by her quick exit from the Game can now look forward to seeing her in a multitude of new, complex roles throughout 2025 and beyond.