This movie was the first time where Seung-hyun Choi (Ham De-gil) ever exposed his physical body onscreen. Choi stated that it was a big step for him, as he was generally uncomfortable about showing skin. The actor had even previously graced the cover of Men's Health magazine dressed fully in a suit.
Seung-hyun Choi said he felt "so embarrassed" and that he "wanted to scream," when going shirtless for this film.
Jang Joon-hwan was originally set to direct but due to delays of production. He was replaced by Kang Hyoung-chul.