This is the fourth volume of manga author Aki Shimizu's adaptation of Natsuhiko Kyogoku’s “Hyakki Yakou” series third novel, “Kyoukotsu no Yume” or “Dreams of Mad Bones”. It continues to build on the themes from earlier books like “Ubume no Natsu” and “Mouryou no Hako”, like crime, suspense, body horror, psychological trauma, and esoteric rituals.
Freud’s theories mostly revolve around sex, and though it made for an interesting topic, it is boring because the human psyche is more layered. The original author, through their self-insert character, Chuuzenji the exorcist, totally destroyed the Freud stand-in.
In this volume, all the investigators come together to listen to the deduction of our Chuuzenji-san. The explanation of the backstory, at some point, I would say, it went on a tangent a whole lot. I think they could just simplify it with some translators note but we can't assume all of the characters are familiar with the subject.