Sekai de Ichiban Kowai Jugyō "Etsuran Chūi!"「Yōkai-gaku」
世界で一番怖い授業“閲覧注意!”~「妖怪学」
Sekai de Ichiban Kowai Jugyō "Etsuran Chūi!"「Yōkai-gaku」 Online is Free. The secret story of the birth of the famous yokai "Slit-Mouthed Woman" that shook Japan; "Rubber Man" and "Teketeke" - Hikita's frightening experiences with yokai; What is the historical darkness hidden in the traditional Japanese yokai?
- Genre: Horror
- Country: Japan
- Director:
- Cast: Saemi Shinohara, Bintaro Yamaguchi, Saya Hikita,