This is one of the best kdrama's i have watched. I highly recommend. The story line is unique and it isn't long so you dont get bored or tired. The show overall was funny and exciting especially because he thought she was a robot, but some scene were emotional and you could really feel kim min-kyu's pain. Each cast member acted their part perfectly and the ending was really good exactly how you would expect it to end. It would have been better if they showed the reactions of people in the office when they saw that the robot looks exactly like her. Its an amazing movie and i dont understand why the national ratings are low compared to the international ones.