おばけずかん!

"Obake Zukan" (translated as "Ghost Book" or "Yokai Encyclopedia") is a multimedia series that includes children's books, a film, and songs. The core of the series consists of the "Yokai Zukan" picture book series by children's literature author Hiroshi Saito and the 2022 film adaptation, "Ghost Book Obake Zukan," directed by Takashi Yamazaki. The film tells the story of a group of children who, after obtaining a mysterious Yokai encyclopedia, enter a world filled with Yokai and embark on a thrilling adventure. The movie stars Kairi Jo, Yui Aragaki, and Ryunosuke Kamiki. In addition, there's the song "Obake Zukan no Uta," written and composed by Masayoshi Oishi and sung by Nana Mizuki, as well as a version by the character Bonyan (voiced by Nana Mizuki) called "Obake Zukan no Uta ~Itsudemo Dokodemo~." The entire series has captivated numerous child and adult audiences with its unique Yokai imagery and adventure stories. Additionally, fan-made wiki pages meticulously document the series' works, including songs, films, characters, and related merchandise.