Nebel Geisterjäger ~ The First Lamb

The main characters, Tsukasa Sakurai and Kana Kashiwazaki, are hired as full-time employees of the Tokyo branch of Nebel, a global company known for its psychic
development, and are soon transferred to a remote town called Saranosato, where they are assigned to a long-term exorcism mission. And for some reason, his infamous
boss suddenly joins the mission as a support person. Saranosato was once the site of a bizarre incident that shook the entire country 12 years ago. In order to exorcise
the unceasing evil and restore this desolate town once again, the truth that has remained hidden for 12 years must be uncovered. The story of three exorcists begins...