A MUST SEE! Maybe not the best drama (or maybe not) but the perfect one for me...It's contains all the things I like : action, suspense, romance and comedy. There wasn't any dull moment when I watched the show. I loved it from the beginning to the end and was never disappointed and even pleasantly surprised by the development of the story. Thank you so much to the writer, Song Ji Na, who made some of my fantasies comes true and for the perfect cast. I was already fond of Ji Chang Wook but the character of "Healer" made me fall over heels for this actor (like when Lee Jun Ki owned me after his performance in the drama "Hero" - where Ji Chang Wook played a supporting role!). I didn't know Yoo Ji Tae but now, I have to check his movies! And the hacker Ahjumma was so great. I liked the chemistry between all the characters! Of course, the OTP was awesome but it wasn't the only relationship that made me enjoys this drama. I liked the relationship between Jeong Hoo and Moon Ho and all the other interactions (Healer-Ahjumma, Moon Ho-Moon Shik). All the characters from the leading to the supporting ones were well written. What was the most pleasant thing for me is that there is always a moment in the dramas (even if the beginning is great) when the writer "invent" some sort of problems between the OTP which leads to some misunderstanding between the characters but there were none in this one and it was really REFRESHING! Dont hesitate, just watch and enjoy this drama as much as I did!