 Song and Seo Ji-hye played a married couple in melodrama "A Lone Tree" (the Korean title "Tree that Sleeps Standing" speaks to the theme of a person's desire to stay next to and support a loved one), then he had a supporting role in "A Reason to Live", a contemplative film on grief and forgiveness starring Song Hye-kyo.He returned to television in the 2011 campus romance "Heartstrings" (also known as "You've Fallen for Me").The drama was co-produced by the Seoul Institute of the Arts, which provided its campus for filming.