I have to disagree with the reviewer who said that this drama has no content, for me this is about relationships, emotions and reslution, how even when you love someone timeings can be off, or the one you love is not in the same place as you.
I think that within the time frame given in four episodes this was done very well, perhaps because of my age and experiences of life and love I can only go on my own experiences.
For me the acting was very good and the scenery was beautiful, it makes me want to visit Jeju Island.