Technically this drama has a bit of everything: romance, revenge, comedy, solid second leads, everything. So it had every opportunity to wow me...But the acting, namely from the lead actress, fell short for me, it was a bit too heavy on the science, and I feel that the story dragged in some places but other plot points were skipped over. Story: Don't let the poster fool you, the comedic parts of this drama are more towards the beginning and the second half gets darker than I was expecting so it kind of threw me. The overall plot was interesting and fresh, vampirism as a virus rather than a completely supernatural theme was a nice change. But it was a bit heavy on the scientific jargon at times and it made me zone out from time to time. Acting/Cast: For me, the reason the entire drama fell short for me was the acting. For some reason I just couldn't connect with Ri Ta's character, and because of that I didn't really like the building romance between her and Ji Sang. And I love a good romance, but the chemistry is key in making me root for the couple through everything, and this totally missed the mark for me. Everyone else, I loved their characters. As a matter of fact I LOVED Ga Yeon's character more than Ri Ta, & thought that if the actresses had changed roles or if Ga Yeon had been the lead Ji Sang fell for I would have loved this drama. But as it was, the romance was not doing it for me, and that was half of the drama. Shame. Music: Good, not great. Rewatch: No. It was hard to get through it the first time without dropping it once i was halfway through. I will say that the comedic parts with certain supporting characters are gif-worthy and remain my fav parts. Other than that...