Lee Kwan-hee and Yoo Si-eun, known for their appearances on the popular Netflix variety show Single's Inferno 3, have confirmed that they are in a romantic relationship. The announcement was made on July 29, 2026, when the couple shared a heartfelt message alongside a photo of themselves on social media.

In their post, Lee Kwan-hee and Yoo Si-eun expressed their joy in sharing this news with their fans. They stated, "Today, we would like to personally share some joyful news related to the two of us. We have quietly gotten to know each other under the warm attention from many of you, and now we want to convey our sincerity directly to you all." The couple emphasized their commitment to cherish and support each other as they nurture their love.

The two stars first appeared together on Single's Inferno 3, which aired in 2024. During the show, Lee Kwan-hee was paired with Choi Hye-sun, while Yoo Si-eun was matched with Choi Min-woo. However, neither of these pairings transitioned into real-life relationships. Approximately three years after the show concluded, Lee Kwan-hee and Yoo Si-eun have evolved from a sibling-like bond to a romantic relationship, capturing the attention of their fans.

As they embark on this new chapter together, the couple has requested continued interest and support from their followers. Their announcement has been met with excitement from fans who have been following their journey since their time on the show.