So I agree, Ahn Jae Hyun was way too idle mid-way through the drama. I mean who ever heard of a surgeon not doing surgeries? However overall, I was entertained by this drama. I loved the vampire theme. For me, it was fun, thrilling, and a bit sad. I also liked the CG-3 effects which, in Korean dramas I usually don't. I felt like Ahn Jae Hyun kind of grew as an actor with this drama, since this was kind of his break out role. I hope to see him develop even more as an actor in his future projects. The very end though was a bit flippant to be honest, actually very flippant, even though they tried to develop it a little bit. Ji Jin Hee was also great in this.