After 8 years of watching Korean drama, this type of story elements get stale and boring. Yes, robot themed made it interesting at first as I did enjoy the first couple of episodes. It was interesting seeing the robot explore and learn about humans and emotions, but once the story's dilemma started rolling it just became almost unbearable to watch. Way too dragged out and the ending was highly predictable. Also couldn't stand that the real son was very one dimensional.