Kemono Jihen
When a collection of animal bodies that rot away after a solitary evening begin appearing in a remote mountain village, Inugami, an investigator from Tokyo who concentrates on the occult, is called to examine.
While working the instance, he befriends an odd child who operates in the area daily rather than mosting likely to college. Rejected by his peers and also nicknamed "Dorotab?" after a yokai that resides in the mud, he assists Inugami uncover the truth behind the killings-- but supernatural forces are at job, as well as while Dorotab? is just a nickname, it could not be the only aspect of the kid that isn't human.