Choi Dae-Hyun (Ji Chang-Wook) walks despondently through a residential back alley after getting dumped by a girl. Sitting nearby are three high school girls, including Jung Saet-Byul (Kim You-Jung). She thinks Choi Dae-Hyun is cute and asks him to buy them a pack of cigarettes. Instead of getting cigarettes, they girls receive a lesson from Choi Dae-Hyun. He thinks the girls are just a bunch of knuckleheads, but Jung Sae-Byul is now even more smitten with him and kisses him.