In September 2013, he became a regular cast member on the JTBC's variety program "Ssulzun (War of Words)" it was his first project after releasing from his mandatory military enlistment but on July 2014 he posted a photo in his personal Instagram account and poured his heart and thoughts regarding his last appearance in the program. In Heechul’s last recording for the show, he mentioned about having the pressure of talking about the people close to him.