Two dramas in one year about DID. In my opinion this drama is the better one of the two that came out despite having totally different plots. This drama just has a better cast with very good acting skills. Ji-sung who portrayed Cha Do-hyun, a DID patient, did a marvelous job in terms of playing 7 totally different personalities, each having a different voice, gesture, clothing, accent, gender and so on. I personally don't think it is very easy to just fit into a skin that is clearly not suitable for his age, for example becoming a 7 year old girl. However, he became a 7 year old girl and despite knowing this is just a drama, I felt as if it was a young girl in a man's skin which was both weird and amazing. This drama made me really interested in this rare mental disorder and I had to research about it to get the full gist of it. It is both very interesting and scary, the fact that a whole new and different personality can live inside you without knowing about it.