- ISBN: 9781975373870 | 1975373871
- Cover: Paperback
- Copyright: 7/23/2024
“If you had died, professor… I would be all alone again.”The truth behind Mana, the “Miracle Girl of Okutama,” comes to light! And soon after, the crew ventures out to investigate a mysterious cave said to enshrine an oni. There, they find not relics of a demon, but rather a human skull with a gaping hole... All this and more, as Professor Takatsuki and Naoya risk life and limb in their hunt for the supernatural!