Rosario+Vampire, Vol. 1 by Akihisa Ikeda

[Viz] Love Bites! All-around average teenager Tsukune can't get accepted to any high school save one...but on his first day, he finds the rest of the student body doesn't appear average in the least. Best of all, the cutest girl on campus can't wait to fling her arms around his neck! Wait a sec'--are those her teeth around his neck too...? Tsukune's going to have one heck of a hickey when he gets home from Monster High! But does he have a chance in H-E-double-hockey-sticks of raising his grades at a school where the turf war isn't between the jocks and the nerds but the vampires and the werewolves? LESSON ONE: VAMPIRES QUIZ WHAT'S THE BEST COURSE OF ACTION WHEN A PERT CLASSMATE ATTEMPTS TO SNACK ON YOUR JUGULAR? a. Run for your life and the sanctity of your soul b. Invite her out for a strawberry soda, heavy on the syrup c. Scream like a boy and hide in the principal's office d. Let her have a few sips while you check out her spectacular quadriceps