A strange virus known as the Demon Virus, attacks the human genetic code, transforming people into monsters with demonic powers. One particular monster is terrorizing the streets of Tokyo. ripping open young women to devour their livers. A famed psychic holds the secret to the identity and purpose of this monster. Now it is up to two molecular biologists. self-proclaimed Bio Hunters Komada and Koshigaya, to reach the psychic and his beautiful daughter before its too late! The Demon Virus is out to conquer the world.