A series of murders and gossip about â??the cut-throat woman' hits the streets. Although her friend has been missing, a high school girl, Misaki, does not believe in the rumours. However, things take a big turn when she receives a phone call from Yoko saying that the cut-throat woman is trying to kill her. As Misaki goes out searching for Yoko, she encounters a swarm of zombies. In a desperate struggle against the zombies, a jingle of a bell echoes through the air... The zombies are exterminated in the blink of an eye, and from the darkness appears Airin, a zombie hunter dressed in a high school girl uniform.