Desc: Tình Dục Là Chuyện Nhỏ: Directed by JK Youn. With Lim Chang-jung, Ha Ji-Won, Choi Seong-guk, Chae-yeong Yu. At a South Korean university most students are busy having a good time. A 28 y.o. and his horny friends are always getting into hilarious situations. He likes a much younger, pretty girl but she likes someone else.