HYD was my my first dorama. (this was back when it first came out) However, one thing that i didn't like: it was so well done that i can't like the manga or anime. The main character is too weak, but in the drama there was a more distinct underlying strength. So while i think its one of my all time favorites (and i've seen a LOT of japanese dramas), i either suggest reading the manga and seeing the anime first, or not bothering with them at all. But the drama is a must!