I Hate Jo In-seong!
He played Sang-min, the girl's present boyfriend, in the movie.
He's so bland, boring... why do all the girls want him?! He looks like a walking, talking brick wall. His performance was horrible! He killed the movie for me! The soundtrack and the lead actress saved it!
Also, why would the lead actress want to be with a guy that hits girls? He's slapping girls back and forth in this movie. What makes her think that he wouldn't slap her too if she got out of line!? This guy sucks!