🔥 Trending Single's Inferno 3's Yoo Si Jin and Lee Gwan Hee Confirm Relationship

Yoo Si-eun was a participant in the third season of the South Korean reality dating show Single's Inferno, which aired in 2023 ¹². She is known for her appearance on the show, which observes participants' emotional shifts and relationship formations in an extreme environment ¹.

While on Single's Inferno 3, Yoo Si-eun did not end up with Lee Kwan-hee, as he chose Choi Hyeseon and Yoo Si-eun chose Choi Minwoo at the conclusion of the show ⁵. However, in July 2026, it was publicly confirmed that Yoo Si-eun and fellow Single's Inferno 3 cast member Lee Kwan-hee are in a relationship ¹³. They reportedly started dating in December 2025, after the show ended, having maintained contact and developed their relationship over time ⁵⁶⁷. Before her appearance on Single's Inferno, Yoo Si-eun was crowned Miss Korea in 2022 ¹.