What a fantastic drama! It was definitely of of the best I've watched, not one of my ultimate favorite but still it was really well done.
From the not predictable story which is really rare to do with k-dramas because you generally always know how it's going to end; to the superb acting done by everyone, especially Kim Myung Min (he will for me be one of the best male performance in drama this year with Lee Sun Kyun and Ji Jin Hee). Not to forget the OST that mixed really well with all the scenes!
I don't give it a 10 because this drama had a little problem, like some people said in the comments, there was a little disappointment with one of the character story turn, he was quite important in the beginning because we saw him quite often but after we didn't saw him at all, so I was like why did they introduce this guy to us if at the end they don't even matter?? (people who watched it will know about who I'm talking).
I don't think everyone can like that kind of drama because a lot of people prefer to watch basic rom-com with young actors most of the time (and ofc I like it too), but I wish people would watch it, not many did thought it was really really good! If you like family, romance, fantasy and funny-tragedy (I don't know if this exist) you will really like it.