Blood: The Last Vampire (2000)

In Japan, the vampire-hunter Saya, who is a powerful original, is sent by her liaison with the government, David, posed as a teenage student to the Yokota High School on the eve of Halloween to hunt down vampires. Saya asks David to give a new katana to her. Soon she saves the school nurse Makiho Amano from two vampires disguised as classmates and Makiho witnesses her fight against the powerful demons.—Claudio Carvalho, Rio de Janeiro, Brazil