W and Nine are written by the same writer, Song Jae-jung, in which she managed to establish unique concepts in creating the world of both dramas. Even though W has only aired two episodes, it delivered a very intriguing and interesting story just like Nine. The two dramas have different plot (Nine is a time travel themed while W revolves in the fictional world of a comic character) but I must say, they actually resembles each other in the way that suspense, humor, and romance has a nice balance on the way the writer tells the story while still focusing on the fantasy element of the drama.