同作は、藤野晴美氏によるネット上のオカルトホラー「ナナシシリーズ」を漫画化したもの。The manga will adapt Harumi Fujino's "Nanashi Series" online occult horror stories. The stories center on the protagonist Haru (a pseudonym for the author), and his friend Kyōsuke "Nanashi" Nanashima, who possesses strange powers. [ANN]