To tell the truth I didn't have many expectations about this drama, I thought I'd drop it and instead ...
From the very first episode it caught me! Such a lovely, light and funny drama * _ *
The chemistry of the two protagonists, despite the age difference, was fantastic. Great acting for the whole cast. The photograph was so cheerful that it all seemed like a fairy tale. But, as in all fairy tales, there were many obstacles for the two protagonists to face. It seemed that the main mystery was finding out who "Do Do Sol Sol La La Sol" was, but after the tenth episode the plot has completely changed. It becomes a tragedy! totally unexpected. It could have been avoided, the story did not need to include a fatal disease. 10 episodes laughing and the rest of them crying were not what I wanted from this drama. (watching the trailer you would never have imagined). Fortunately, in the end (it's not clear how) everything falls into place and we have our "happy ending". But, it doesn't satisfy as it should. Many answers have not been given and we will always remain with doubts. However, it is worth seeing it all. You will fall in love with Rara, Mi Mì, Jun-Ahhhhh and all the others. :)