Upon arriving in the secluded mountain village of Yasaka with her classmates, Mikoto immediately senses that something is amiss in this small town. Is it possible that no girls have been born here in the past 50 years? Although Mayor Amano and the other male inhabitants warmly welcome her and the three other students attending Professor Ashihara’s overnight seminar, Mikoto cannot shake the growing feeling of unease that envelops her. Something terrible has occurred in this place, and it seems poised to happen once more. The town has been anticipating her arrival, along with the other girls. Adapted from the popular online manga featured in Web Comic Gamma, the nightmare is about to unfold!