Professional basketball player Lee Kwan Hee and influencer Yu Sieun, who both appeared on Netflix’s Single’s Inferno 3, have officially confirmed their relationship.
According to reports, the two became a couple in December 2025 after staying in contact following the dating show.
Lee Kwan Hee and Yu Sieun first met while filming Single’s Inferno 3, which was released in December 2023. Although they did not become a couple during the program, they reportedly remained close after filming ended and continued communicating as comfortable friends.
Over time, their trust in each other grew, and their friendship developed into a romantic relationship. Photos also showed the couple enjoying a quiet aquarium date together.
The two personally shared the news through their social media accounts.
Instagram contentThis external content is available when Marketing is allowed.Review privacy choicesInstagram contentThis external content is available when Marketing is allowed.Review privacy choicesThey wrote: “Today, we would like to personally share some happy news about the two of us. With the warm interest and support many people have shown us, we have quietly spent time getting to know each other. We now want to sincerely share our feelings with everyone.”
They continued: “We plan to continue caring for and supporting each other as we build a beautiful relationship. We ask for your warm support and interest. Thank you.”
Lee Kwan Hee currently plays for the Seoul Samsung Thunders in the Korean Basketball League. He gained wider international attention through Single’s Inferno 3 because of his honest personality and entertaining presence. He also appeared in the Wavve original variety show Bloody Game 3.
Yu Sieun was the first runner up in Miss Korea 2022. She received attention for her appearance, calm confidence, and honest personality during Single’s Inferno 3.
