OVERALL Excellent drama that you should watch ASAP. What's great about it is the blend of the historical and romcom genres. There's action, there's history, there's fantasy, there's comedy, there's romance; a little of everything for everyone, so no need to hesitate, just dive in. Maybe think about it if you don't like love stories. But it doesn't hurt to watch one once in a while, and this one's worth it. THE STORY In three words: cute, interesting and fun. Although the premise is not very original, the story is flawless and incorporates enough innovation to make you forget it. For one thing, although it's a time-travel plot, forget the hundreds of clichéd jokes and plot elements typically recycled in these types of stories. In here, the guy who time travels is so smart, he can infer and deduce how to do things, and faces all situations with complete calmness. Forget the happy-go-lucky girl with little backbone and neurons. Here, the girl is good-humoured, but she's also playful (best part of her, I think) and perseverant. Their interactions are absolutely addicting, but what's great about the drama is also the interactions between them and other characters, and the back and forth between present day and past. All conflicts and complications are coherent and understandable, and the humor is good. Nothing to complain about, except that the show was too short. THE ACTING First lead role for Yoo In Na and she did great, even though it wasn't clear just how much was acting and how much was her being herself. Ji Hyun Woo joined my A-list. I'll be watching out for him now. He's good. Also, their chemistry was very palpable, and that's not just me saying it. There was a big scandal after that drama too. The actor made a public love confession and the actress soon followed. Guess that's why it just felt so real. THE MUSIC Good stuff, and always right at the right time. I just can't give it a 10, because I didn't like any of it enough to put it in my mp3. But it was good stuff. I especially liked the gayageum instrumental tracks. REWATCH VALUE Top of the list. Whenever I'm bored, I rewatch it. Short, good and fun, nothing better.