The Blue Spider is a collection of folk tales originating in various areas of Japan during different eras and included in the twelve-volume anthology Japanese Folk Tales, which was published in Japan in 1973. Thematically, the collection is divided into four chapters: “Devils and Mountain Witches”, “Wonderful Creatures”, “Werewolf Animals” and “Battles with Werewolves”. Various collections of Japanese fairy tales aimed at children have been published in Russian more than once. The Japanese stories presented here will also be of interest to adult readers. They create a colorful picture before your eyes, inhabited by amazing creatures, werewolves and ghosts, which, undoubtedly, still exist on the distant Japanese islands.