Bakemono-tachi ga Usobuku Koro ni: Bakemono-hime no Katei Kyoushi

is a Japanese light novel series written by Ryukishi07, with illustrations by Shigeo Hamashima. The series began publication on October 10, 2020 by ASCII Media Works under their Dengeki Bunko publishing imprint.

Synopsis
"Ichiichi, it's a proof of my love for the same monsters and

what I have. Eat," she said, and it was a human "Harawata."

Late summer of 1950. A young man, Ichiichi Shiozawa, who visited the village as a tutor of a famous daughter. What he saw there was the appearance of Marika Mitsuko, a beautiful "bakemono" who devoured the corpse. Is the transformation of the graceful daughter sick or due to haunting ...?

A series of disappearances of girls that occur at the same time. The characteristics of the disappeared person are the same as the "it" I saw in Marika's room ...

The tutor of Princess Bakemono, Ichiichi Shiozawa, solves all the mysteries-- !!