I am a very choosy drama watcher and I must say I loved this one completely! The male lead is the one to watch out for along with the robot version of his face. The drama has many twists and a tricky plot to top it all. The villain looks one definitely, all his actions are just criminal minded. One of the things I loved about this drama was that unlike Western shows and movies, they showed Artificial Intelligence and Robots in a positive role.
Hats off to the writer!