Actress Shin Se Kyung, and actor Lee Kwang Soo was reunited on SBS's 'Running Man' after starring on the sitcom 'High Kick Through The Roof" together. While on the set of 'Running Man' in Jeju Island, Lee Kwang Soo confessed, "While filming the sitcom, Shin Se Kyung and I contacted each other frequently", thus hinting at their friendly relationship. Shin Se Kyung cheekily replied, "Lee Kwang Soo and I have a very ambiguous relationship," causing the staff on the set to burst into laughter. But Lee Kwang Soo persisted, and said, "Two weeks before Shin Se Kyung's birthday is my birthday", attempting to show that he was quite close to Shin Se Kyung. The actress jokingly added, "There is no end to it if you put it that way," and successfully avoided going into details about their association in a witty manner. On this day, Shin Se Kyung also surprised the members of 'Running Man' with her aggressive attitude. Yoo Jae Suk, who was a part of Shin Se Kyung's mission team, said, "I've come to realize that Shin Se Kyung is not so easy-going". [gallery] Source: Economic Today via Nate