On the latest episode of SBS's "Protect the Boss", the general managers of 'DN Group', 'Ji Heon' (played by Ji Sung) and 'Mu Won' (played by Jaejoong) got into a hilarious fight. After practicing a couple of times, the actors immediately dived into their roles as soon as the director yelled 'Action!'. Ji Sung, first stomped on Jaejoong's foot, and the fight escalated from there with both men pulling at each other's hair! Citizens watching this scene from outside asked the producer with concern, "What are Ji Sung and Jaejoong fighting about?, while studying them with inquisitive eyes. [gallery columns=4] Shooting for Ji Sung and Jaejoong's fight scene lasted for three hours while Choi Kang Hee (who plays 'Noh Eun Seol') watched on not knowing what to do. As soon as they received the okay sign from the producer, the two actors fell apart, brushed off their clothes, got up, and asked each other if they were hurt anywhere. The producer applauded over how they cared for each other as if they were real brothers. The producer explained, "Today's fight scene was about them vying for the title of successor to the group." He hoped that people would continue watching the drama to see the development of the two characters and their relationship as competitors in both business and love. Source & Photo: Newsen via Nate Tip: Cindy