I just finished the drama and i was somehow disappointed with all the hate comments i have been reading even before i see the ending. I cannot say that the drama was perfect but it was not bad afterall. I am a psychology major student and i guess it was the main reason why i enjoyed the drama.(doesn't mean that the symptoms or cases of DID shown are possible because it was just fictional ) Hyun Bin was Hyun Bin. He was a great actor that could make us cry a river with his crying scenes. Until the end i still see seo jin and robin as different person and he did a well in portraying both characters. On the other hand, han ji min who was highly bashed for her acting skills in this drama was reasobable. there are maybe some parts she lacks emotions but not until the last episodes (with robin ) that made me cry like a baby. I understand that the hate and disappointment of all the other reviews rooted from their own expectations. they are asking more of the scenes they wanted like more seo jin and hana scenes. blaming han ji min for bad character when she was only portraying her role according to the script. Unlike the majority, I loved this drama. One of the dramas that made me weep and flood my room. Somewhat SPOILER: For the bias part. . until the end i was hoping robin would overcome seojin and hana and him would be together, I liked robin more because i see him as another seojin not just a mere symptom of his illness. I see his pain and i love how he is able to give love and protect people beyond all their hate of his existence.