Desc: Tình Dục Là Chuyện Nhỏ 2: Directed by Tae-yun Yoon. With Lim Chang-jung, Song Ji-hyo, Choi Seong-guk, Yi Shin. Eun-sik is part of a nearly ideal campus couple with Kyung-ah. While their three-year relationship is solid, Eun-sik struggles to get to the next level; despite the help and support of his friends, he can't manage to get her into bed.