[DeepL Translation - needs review] Kuzuhira Kasumi, a high school student, and her childhood friend Asahina Yatsuki, who are almost lost deep in the mountains of Okutama, are led by Monokaki Camembert, the fifth son of a family of secret room mystery writers, to a strange village of white rectangular buildings inside a huge limestone cave called "Yatsuhako-mura" (Eight Box Village). Kuzuhaku and his friends take on the mystery of a series of locked-room murders that occur in the village, whi...
