Not everyone will like this series because it isnt a typical korean drama, it worked us through different kinds of mental disorder and ways to overcome them.
It is not fictional, or supernatural it is more of a healing drama, and for people who have suffered or are still suffering from someone kind of mental disorder will be able to relate on many levels to this drama, it shows that everyone can change, everyone can heal if you just have the right person or persons by your side.....
My sister isn't a kdrama fan like me, but this particular one she was heads over hills for. It a drama worth all time if you just open you mind to something new