This drama is almost the greatest K-drama in Korea. But unfortunately, I'm really disappointed in S3. The story suddenly became nonsense. But S1-S2 it getting better but in the end of S2, Logan Lee died but he still alive. Like in S1, Soo Ryeon died but she still alive. At the end of S1 it's better, but in the end of S2 the writter is like out of brain. And in the end of S3, they died together. I don't know why the writter can't find the idea.