Chuzenji-sensei Mononoke Kougiroku: Sensei ga Nazo wo Toiteshimau kara.

Kusakabe Shiina, who has advanced to the second year of a new high school, meets Akihiko Chuzenji, a new instructor of Japanese. Chuzenji always read books with a bad mood. A combination of teachers and students confronts a series of strange cases.