The chemistry between all the cast was insane. The couple that were friends with the main characters were my favorite. Their rapport was fantastic and they were perfect together. The last couple of episodes were a little weak compared to the rest of the show, and had a different tone from the rest of the drama, but aside from that, I really enjoyed the overall show. I'm a big fan of Lee Da Hee's acting and she was amazing here, as was the rest of the cast. A super solid drama.