내게 사랑은 너무 써 (2008)

High school Seniors Mok-Lyeon and Byung-Hee have their first sexual intercourse at a cramped and non-soundproof study-room at goshiwon. While Byung-Hee is out buying snacks for Mok-Lyeon, the neighboring man enters the room where Mok-Lyeon is alone...