Chuuzenji-sensei Mononoke Kougiroku: Sensei ga Nazo wo Hodoite Shimau kara.

The story

Synopsis

Akihiko Chuuzenji, a bookish and exacting new teacher at a Tokyo high school, crosses paths with Kanna Kusakabe, an earnest girl whose eagerness to help draws her into strange situations. When a supposed curse threatens a classmate, Kanna's nighttime curiosity leads to an unexpected encounter with her reserved teacher. To keep certain private matters hidden…