Lee Kwang-soo's agency, King Kong Bystaship, said on the 31st that they were "devoted for five months" and that "the two of them have developed into lovers after being a colleague of SBS TV entertainment Running Man'."
Lee Kwang-soo made his debut with MBC TV sitcom 'He Comes' in 2008 and was loved by various movies and dramas. Especially, Running Man' has built a unique character and became a Korean wave star not only in Korea but also in Asia.
Lee Sun-bin made his debut in the Chinese drama 'Seosung Wang Heeji' in 2014, and is actively working on various films such as movies, dramas, entertainment, and music videos.
About Running Man
Running Man is a South Korean variety show, formerly part of SBS' Good Sunday lineup. It was first aired on July 11, 2010.
Running Man was originally classified as an "urban action variety"; a genre of variety shows in an urban environment.
 Wikipedia