Actor Joo Jin Mo took a shot with the child actor.
Joo Jin Mo's management company Fantasio released a behind-the-scenes cut of "Empress Ki" (script Jang Young Chul, Jung Kyung Soon, director Han Hee, Lee Sung Joon) on March 10th. In the released picture, Joo Jin Mo is plyaing Wang Yu and the child actor is playing the role of the prince Maha.
In the picture, Joo Jin Mo is hugging Maha. In the drama, Maha is Seung Nyang (played by Ha Ji Won)'s son. However, Wang Yu doesn't know the secret surrounding Maha's birth.
In actuality, on set, Joo Jin Mo took care of the child in case he had a tough time and took care of the child actor like a real factor. Even in his spare time, he didn't go far and started to take care of the prince and made the set feel better drawing a warm scene.