In Japan, the vampire-hunter Saya, who's just a original that was powerful, is delivered by her liaison with the federal government posed about Halloween's eve as a student to the Yokota High School to hunt down vampires. Saya asks David to present a katana that is new to her. She saves the school nurse Makiho Amano from two witches disguised of Makiho witnesses her struggle along with classmates against the powerful demon.