They believed they were heading to Japan to investigate a mystery mountain settlement. Instead, they have found that their Professor brought them to Yasaka for a far more sinister reason. Now Mikoto and the other girls are imprisoned in a horrific nightmare. As the villagers become progressively mad, the college students find themselves at the heart of bloody, rotting-meat-centered rites. Their only chance of survival is to flee, but their captors are too many and know the terrain too well.