Yuki, the shy girl who becomes in some ways entangled with some of the "night students" at her school.
It's hard to know whether it is in a all romantic way, but it sure has the tones of a romantic story. But that's not hard to guess as the manga is a Shojo manga, which means it's written for girls at the age of 12,13,14-ish.
We will find out, Yuki's first memory, is being attacked by a vampire, and her job at the school (which is run by her father) is to make sure the day classes does not discover the secrets of the night students, this she does together with her childhood friend Zero, whom also becomes a vampire and Yuki battles to make him keep sane and not become what they classify as Level E vampires (the savage ones).
What makes the story even more tangled up, is the fact that Zero's family, was killed by vampires.
What we also get to know during the story is that Kaien Cross, is not really Yuki's father, and that Yuki has her own heritage that she carries, deep within her self.
Recommend?
Oh, yes. Even if it's silly, romatic yucky and ucky, I do recommend the anime. But, it's not for those who do not like really romantic stuff.
It's rather like many other Shojo manga, and it's rather similar to many vampire stories looks like, but it is a nice break from all those new vampire stories that looks the same like Twilight and True Blood/Sookie Stackhouse novels.

start of weird things, and when one of their friends don't show up, her boyfriend starts looking for her while the others stays at the cabin and starts the party. When one of the girls goes missing and they find the backpack of the first missing person, they start to get suspicious and this is when they start the battle against the zombies.