One of these best mangas out there. This surpasses its genre in greatness, at first you have no clue what's going on but then slowly the story starts coming out and you become pulled into this world of mystery and tragedy, which of course means murder. The deeper you get the more tied to the characters you become, you begin hating one and view them as the enemy until you get more pieces of the story and you change your mind.
Ultimately you end up hating fear because that's what triggers everything. This series is about the destructive power of fear and teaches you a very emotional lesson of just how terrible it can be. This isn't a typical vampire story, it's filled with nothing but tragic romance and utter chaos at times. Mostly, it's a sad lesson as to why you shouldn't try to destroy something simply because you don't understand it.
I love it because even though this series would ultimately be labeled a Tragedy, it's not overly depressing, it's not all that dark really. It weaves in and out of its horror, so you don't feel weighed down and ready to hang yourself. This is very good story and I'd recommend it to anyone over the age of 13 no matter the gender.