I wasnt interested at the story & kdrama when i watched the first few minutes, BUT after i watch few episodes i could really tell that the writer did a good job writing the story, its just creative,interesting,thrilling, and emotinal. If you ask which part in this kdrama i like the most well i could say the story and yoon si yoon's acting. The story is just.. UNPREDICTABLE, it also really touch my heart and make me cry a lil bit. its just sad the fact that they were destined with bad future, only if they can change their destiny together in new life/other world. overall its a good kdrama :) when i first watched yoon si yoon's kdrama which is 'psychopath diary' i already amazed by his acting, especially when he cry or act like a frustrated person or a pyschopath. So i know his next kdrama is going to be good too. RECOMMENDED make sure to add to your watchlist!