So my friends saw this drama and they hyped it so much that we had to see it together. We marathoned watched 10 episodes and when I came home I continued on my own. Two days later I was done with all episodes. For me its very unusual to have an drama marathon and that says alot about how good it was! The story of the drama and the acting of all of the roles is such an great match it must have been made in heaven. I can not emphasise enough on how good of an actor Ji Sung is. He manage to make 7 different characters very easy to different from each other and put all of them in one body. I have not seen his acting before so I was surprised to say I found one of my new favorite actors. I think he has so much talent and he makes the drama and his role almost creepily good. I must say he makes the drama even though the other actors of course gives him a lot of help. Especially Hwang Jung Eum as the female lead, whom also shows off great acting in this drama. The story is well written and has so many details showing up episode after episode. I was afraid that it would be too many strings to handle but without giving any spoilers I would say the director managed it very good at the end. I think that even though you could say this is an wrong way of showing an disease it was an very good try. I think the script made it justice even though it also had a lot of humor to it. Be prepared to laugh thru most of the episodes even though it hold alot of seriousness! I would see this drama again just to see Ji Sung’s gold worth acting and also go back to the memories with my favorite character mr.Shin! I absolutely think you should give this drama a try, it will probably surprise you!