Song Hye Kyo caused a fierce controversy when she did this with Hyun Bin 14 years ago.

In Korea, making a successful TV project depends on many factors, in which the juggling of the cast plays an extremely important role. In 2008, Hyun Bin and Song Hye Kyo once disappointed with their collaboration in the movie The World They Live in. For Korean “movie geeks,” this is an outstanding work in the career of two A-list actors.
Considered a “big man” on the world TV map, Korea still has many “bombs” that bring regret to the audience. Recently, in an article about Song Hye Kyo’s television achievements, netizens recognized the World They Live in as one of the unsuccessful TV projects of the “rating queen.”
In 2008, the Korean screen received good news when Song Hye Kyo and Hyun Bin confirmed their “love” in the TV series The World They Live. Many expectations were placed on this collaboration because the two main actors at that time were considered talented young faces of Korea. While Hyun Bin has just made a splash with the lead role in My Name Is Kim Sam Soon, Song Hye Kyo is recognized as a screen gem with Autumn in My Heart and Full House.
However, the movie The World They Live in was less successful than expected and quickly faded by the old content. Even Hyun Bin and Song Hye Kyo are said to have forgiven the debt of the film’s production unit.
Despite the failure in performance and ratings, the film still received some praise for the “surreal” chemistry that Hyun Bin and Song Hye Kyo created. In particular, rumors of the couple’s “fake love movie” constantly sprung up after the movie. In an interview, Hyun Bin admitted that many crew members complained because he and Song Hye Kyo kissed too much.
At that time, many viewers thought that the collaboration in the movie set the stage for the couple’s love relationship to be publicized later. However, this is still a rumor, and the actors have not yet commented on this information.