I didn't feel an emotional connection with the characters. He was flat throughout most of the show, he felt robotic to me. His personality was the same, no matter who he was dealing with. I didn't care for the side stories much, I watch K-dramas to get away from all the sex/language that is found in American/British shows, so between one couple living together and the other girl talking about all the guys she's had sex with, that was a turn off for me.

Lack of communication really frustrates me. The breakups because they don't talk to each other (mostly her fault) were maddening. I could, to a certain degree, relate to the progression of their relationship, but unfortunately by the time that happened I really didn't care for him at all.