Um Ki-joon posted a picture on his Instagram on the 10th with an article entitled "It's been a long time. It's been four years".
In the photo, Um Ki-joon and Bae Suzy are posing side by side. The two men appeared in the KBS 2TV drama Dream High', which was broadcast in 2011, as a priest.
Meanwhile, Um Ki-joon is currently appearing in musicals 'Rebecca' and 'Dracula'.