How old is Hwang Min - woo ?
Uhm Jung - hwa ... Lee Jung - ha Kim Hyo - jin ... Kang Na - ru Hwang Jung - min ... Min Jae - in Lee Hwi - hyang ... Jung - ha 's mother Kim Kang - woo ... Jung - ha 's younger brother Jone D. Kim ... one - night stand man Choi Min - sik ... doctor ( voice cameo )