[Machine Translation] In 1945, Yufuko Nagara received a strangely long letter addressed to her, secretly written in a college notebook. Mori-no-Sekigawa Village," where the girl who wrote the letter lived, was a land inhabited by many cows and unnaturally prosperous so much so that it seemed hard to believe it was wartime. It was deeply feared by those around it, with rumors circulating that they kill travelers and bury them" and all the residents are monsters." The girl in the letter implored Yufuko, You must read this all the way to the end." Hidden within its pages were not only the village s harrowing fate tied to a prophecy, but also the terrifying destiny that awaited Yufuko in the real world...