This is the best romance k-drama I watched for a long time. It surprised me in many good ways. Usually I could predict how these romances plots go, not this one. I was not sure how the writer would end the main couple until the last episode. The ups and downs are very real as lives should be. The actings are excellent too. The dialogues are witty. Four different couples exhibit relationship in various stages of lives. The chemistry among the actors and actresses were real. Of course, like any other modern Korean dramas, a lot of drinking scenes. I always wonder if that's true in their society.