Han Ji Min was originally cast as the main female character, Joo Jae In, but was later replaced with Kim Min Jung, who was also replaced by Yoon So Yi due to a shoulder injury.
On October 22, MBC Hero drama while shooting the KARA concert at the Cheongju Art Center. Lee Joon Gi as Jin Do Hyuk surprised everyone with a hang-wire Tarzan action.
The replacement of Kim Min Jung by Yoon So Yi, eventually pushed the airing date back to its original, November 18.
Lee Jun-ki donned a white shirt with a glittering flower-print vest on top, briefly transforming into as a nightclub waiter. On set, Lee played the role of the nightclub waiter so well that the staff jokingly asked if he really had worked part-time at a nightclub before.