Sankaku Mado no Sotogawa wa Yoru

Mikado is a bookstore employee who often sees disturbing things but has learned to ignore them. His life changes when he meets Hiyakawa, an exorcist who involves him in exorcism work. Although it feels awkward to find the process enjoyable, Mikado becomes drawn into daily cases with Hiyakawa. Their routine is disrupted when they encounter a murder case.