How many movies have Kim Hee-jeong and Yoo Sul-young acted in together?

They have worked on 3 movies together! Their first movie together was An Affair: My Wife's Friend (2018) while their highest rated movie together was Room Salon College Girls 2 (2019). They have not worked together since An Affair: My Wife's Friend 2 (2019). They are most known for their romance films together.