There was great chemistry between actors Gong Yoo and Lee Dong Wook on set, making witty ad libs. Behind the scene footages can also be seen through Naver's 'V' App.
The highlight of the clip appeared to be the unforgettable "Fried Egg and Bean Sprout" scene where character Kim Shin (Gong Yoo) compares the grim reaper (Lee Dong Wook) in a white coat, and Sunny (Yoo In Na) dressed in a yellow fur coat, extensively.
Gong Yoo acted silly during the shoot, making the producers and staff members laugh out loud. An entertaining, envious scene was also revealed. Kim Go Eun hands a hot pack to Lee Dong Wook while filming.
Gong Yoo rushes after them, snatching the hot pack from Lee Dong Wook, saying, "Hey Dong Wook, this is mine. Give it to me!"
Check out the fun atmosphere on set below.