OK, I enjoyed it even though the story was written really badly... The cast were good enough to keep me hooked, even though there were many parts that had me rolling my eyes, or saying "seriously?"
I feel like this had the potential of being a really amazing drama, the main plot had so much potential, but every now and then I would get disappointed.. Also, the way they portrayed his illness was very unrealistic, especially the ending..
Anyway, it's still interesting enough to make you watch it till the end.. Just be prepared for some ridiculous plot holes and disappointments..
This drama was released right after "Kill me Heal me" which is also about multiple personalities.. and to be honest, the story is incomparable to KMHM even though they are both unrealistic portrayals of the illness. They both had a different twist and used the illness creatively.. But I found this drama to be sadly disappointing in many aspects.