When I watch the first few episodes, I thought this is one of my favorite dramas and it's so good. But the last few episodes are so disappointing. It's like the last few episodes are written by a different writer. All the people you love dies and after the character you love the most and expected so much died, What's there to watch? And the main actor ends with the female lead you don't like that much instead of the one you love! Normally you expect an ending with everyone (at least some people) be happy. But the ending here is the worst ending I've ever seen. Because there's no one left to be happy.