Literally the most exciting Korean drama I have ever watched. When I first started the show I had no idea that the story would become what it is. Till episode 11 th story is kinda predictable but after that its Like with each episode the twists increase in frequency. Like when you watch one episode in that only the first half ,everything will be alright.... but then in the second half, everything turns upside down.... I was emotionally and mentally exhausted by the time I finished this show. The storyline and the concept is one which I have never seen before... Till this date it's the best Korean drama I have ever watched.