Keukegen- Japanese folklore: a creature covered in black fur that lives in peoples houses. Its name means "rarely seen". It was a disease spirit, inflicting sickness into those who lived in its host house.
Yanari -- Little demons that produce the creaking sounds heard in old houses. From The Kaibutsu Ehon ("Illustrated Book of Monsters"), an 1881 book featuring woodblock prints of yōkai, or creatures from Japanese folklore.
Onryo - Japanese Ghost - They are the ghosts of people who died with such strong passions, such as jealousy, rage or hatred, that their soul is unable to pass on, and instead, transforms into a powerful, wrathful spirit bent on vengeance on anyone or anything it encounters.