As a typical western, and clearly I am reflecting only my point of view, I'm having a hard time keeping track of the Korean names along with the corresponding faces, in most of the kdrama series I am watching..., however, still, I have to say, kdrama is so unique, it covers so many aspects of our universe secrets in terms of love, relationships, mystery, soul purpose, the beyond, life mission, people to people interaction, and in short, it touches and manages to play our souls cords, as if we were an instrument used by a very skilled artist. This series embodies everything mentioned above, as well as a lot of numerous other kdrama series I have binged recently, and the conclusion is, kdrama has a way of reflecting the universe rules and roles for the individual person, which can be described as a devine intervention!!!
This goes not only for this series, but for most of the kdramas series that are out there..., which I strongly suggest all should watch, if the beyond is something you are interested in...