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Each of the three leads talked about their roles in turn. Jo Jung Suk said about his character Go Doo Sik, "You must realize after watching the trailer, but I'm a horrible swindler with 10 violations of the law on my criminal record from fraud. This isn't like my actual personality, so I had a hard time while filming." He continued, "There's a significant age difference between Go Doo Sik and his younger brother Doo Young. I try to sell my younger brother to get rich, but it doesn't work out in my favor so it was fun." 

D.O, playing the younger brother Go Doo Young, said, "I'm the popular national team athlete Go Doo Young. On the outside, I seem strong and proud, but on the inside, I have a soft and innocent side. [Go Doo Young] is a little bit like the real me." 

Finally, Park Shin Hye spoke up about her character, "I'm the national judo athlete Go Doo Young's coach. When it comes to being nosy and butting in, I'm the national athlete. To help Doo Young with his athletic career, I clean his house and cook for him. But when his swindler hyung shows up, I start bickering with him."

Sounds like a group you don't want to mess with! The film premieres this November 30.