Song Joong Ki recently made a surprise visit to the set of "That Winter, The Wind Blows," to see Jo In Sung.

An official from Newsen said on February 5th, "Kim Ki Bang and Lee Kwang Soo visited the set of "That Winter, The Wind Blows" to support Jo In Sung. Song Joong Ki was around and coincidentally ran into them."

Song Joong Ki made a debut with film in a movie called "A Frozen Flower" with Jo In Sung. They also were in the same agency, Sidus HQ.

Jo In Sung, who recently was discharged from the military will be in the SBS drama "That Winter, The Wind Blows."