I would not advise anyone to watch this show.
What originally drew me in to watching this show was the description and the tags. I'm a sucker for anything vampire, and I'll watch pretty much anything tagged vampire even if people think it's the worst. This show is a perfect example as to why a lot of people think vampire based shows and movies suck (heh). Secondly, it's known as being reverse harem and I have a soft spot in my heart for reverse harems.
What I actually got was a misogynistic cycle of abuse that honestly made me feel sick. The truth of the matter is that this show is meant for girls. It has at least a decent enough following to be fairly high up on the list for popularity, and it was meant to appeal to women. I genuinely feel sorry and concerned due to that.
If you want to watch 12 episodes of dull characters abusing a young girl, including non consensual sexual implications, with the cover of a story line that is weak and makes little to no sense, this is the show for you.