Im Ki-hee (Korean: 임기희), known professionally as Im Ye-jin (임예진), is a South Korean actress. Affectionately called the original "Nation's Little Sister", Im debuted as a teenage actress taking on roles of the "pretty teenage student" in several movies and TV series – helping her win the title of everyone's favorite "dongseng" (동생; lit. Younger sibling) in her time. She reached the peak of her popularity in the 1970s with the "Really Really" film trilogy, which includes Never Forget Me (1976), I Am Really Sorry (1976) and I Really Really Like You. She is currently active in television.