Befor starting sorry for length

I started watching this drama because of it's
9.1 ratting I thought it's like drama ' w ' (two world's ) but it's different and I like dramas with happy ending ,even drama was good but if it has sad ending I don't get satisfaction , thank God this drama has happy ending and in some reviews about this drama says the ending is in rush but it's wrong

Story:
The story is good but the flash back is the biggest drawback of this drama the link between present and past is a bit confusing
And we will have a lot of questions with out answers even after the drama end apart from that drama is good , In this drama is not a single character in this drama is killed even the bad character changes into good that's a relief for me

Music:

BGM is the best in this drama I enjoyed a lot
Some scenes are elevated to peaks because of bgm

Acting:

I like the female lead Dan oh acting so much IAM
Amazed by her acting and the male lead is also good but Dan oh dominated mail lead completely


Thank you for reading