iris2 Yoon Doo Joon and Lee Joon have been showing signs of a budding bromance on the set of IRIS 2. Behind-the-scenes pictures of Yoon Doo Joon and Lee Joon depict a different relationship than the relationship depicted in the drama itself. In IRIS2, Doo Joon and Lee Joon are often seen grabbing each other by the collar, getting ready to fight. But as soon as the director shouts cut, the two idol stars share intimate bromance moments. Their close-knit relationship explains the perfect synergy between the two on screen. Lee Joon and Doo Joon are also spotted helping each other practice their lines, showing passion for the project. A representative of IRIS 2 commented, "Yoon Doo Joon and Lee Joon show their passion and are bright even on the set, acting as endorphins for the people around them." What do you think? Could they be the next bromance couple? (Source: