Read manga: Vampire Girl (Tanaka Minoru)

manga
Summary:

After reading a popular cell phone novel, Manami becomes obsessed with vampires. When she meets the new substitute teacher for her class who is very similar to the vampires in her novel, she obsesses with her as well. After going on a "date" with Shishido-sensei, she goes home with her but quickly finds that she has bitten off more than she can chew...