Set in the year 2020, following her supposed death, a young woman returns as the son of her noble family to precede the family's prestigious company, with a demon at her side to avenge her parent's murder.
A genius film director, Tadashi Kobayashi holds an audition for his new film project. Several actors and actresses answer the open call, but most will only be cast as extras. Can the film come to a completion without accident?
Airi is a graduate student with a degree in the study of folklore. As part of her research, she decided to go to a small village with a group of friends, to investigate local legends. She does not know that the people worshiped the Slit-Mouthed woman as a living god, and intend to use her and her friends as a human sacrifice. In the end, Airi is injured and decides to fight, becoming a Slit-Mouth hunter.”
