The drama was originally set for broadcast on SBS during the first half of 2011, starring Eric Mun and Kim Ok-bin in the roles of Kim Sun-woo and Lee Soo-yoon, respectively. However they dropped out when production was halted after the Bombardment of Yeonpyeong incident in November 2010. Production company Annex Telecom transferred to a different network KBS, and filming resumed in August 2011 with the casting of Choi Siwon and Lee Si-young.