Kaii to Otome to Kamikakushi

Synopsis:

Mysteries are objects, not merely secrets! One can regain their youth by consuming the Elixir of the Moon! It is forbidden to recite the Songs of Another World out loud. The testimonies of people who have been spirited away are included in the Curious Report of the Enchanted Land. These and other mysteries are increasingly resurfacing in Tokyo as urban legends. Demon lad Adashino Ren and burned-out novelist Ogawa Sumireko are determined to gather as many as they can, but Sumireko has a talent for not only locating the secrets but also setting off their enchanted effects! Will she make it through her encounter with the paranormal? What further plans does the demonic Ren have for her?