Solo Hell 3's Lee Gwanhee and Yoo Sieun Confirm They're Dating in Real Life

Basketball player Lee Gwanhee and influencer Yoo Sieun went public with their relationship on the 29th, confirming in coordinated social media posts what had reportedly been building since December of last year. The couple met as cast members on Netflix's Solo Hell Season 3, which premiered in December 2023, though they had no romantic connection during the show's run.

In near-identical statements posted to their respective accounts, the two wrote: "We wanted to share some happy news with you directly. We've been quietly getting to know each other amid the warm interest so many of you have shown us, and we felt it was time to share our true feelings with you as well." They added that they intend to support each other going forward and asked fans for their continued warmth and encouragement.

According to earlier reporting, the relationship took shape gradually after filming ended. During the broadcast, Lee and Yoo had little overlap and were not part of any developing love line. In the months that followed, they maintained a comfortable, low-key friendship, and over time that closeness deepened into something more. The two reportedly began dating as a couple in December of last year.

The news was accompanied by photos, apparently obtained ahead of the announcement, showing the two on a date at an aquarium, a setting that fit the relaxed, private tone both have maintained throughout.

Lee Gwanhee currently plays for the Seoul Samsung Thunders in the Korean Basketball League (KBL). He ranked first in free-throw percentage in both the 2018-2019 and 2021-2022 seasons, a measure of consistency that has defined his on-court reputation. His appearance on Solo Hell 3 brought him a wider public following, and he has since extended that into entertainment, most recently appearing on Wavve original Blood Game Season 3. The dual presence in sports and variety has positioned him as what Korean media shorthand calls a spo-tainer, an athlete who operates comfortably in entertainment contexts.

Yoo Sieun was named Miss Korea Sun in 2022, the category recognizing virtue among the three top titles. She drew consistent attention during Solo Hell 3 for a directness that read well on camera, and has since built a following as an influencer.

Solo Hell has a notable track record of producing couples after cameras stop rolling. The show's format, which places singles on a deserted island and gives them limited time and incentive to pair off, tends to create friendships that the structured setting doesn't always let develop further. That Lee and Yoo found their way to each other well after the season ended is consistent with how past cast relationships have formed.