Japan: Kitsune - Stories depict them as intelligent beings and as possessing magical abilities that increase with their age and wisdom. Foremost among these is the ability to assume human form. While some folktales speak of kitsune employing this ability to trick others—as foxes in folklore often do—other stories portray them as faithful guardians, friends, lovers, and wives.
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.
Baku: The Legend of the Dream Eater - The baku, otherwise known as the ‘dream eater’, is a mythological being or spirit in Chinese and Japanese folklore which is said to devour nightmares. The baku cannot be summoned without caution, however, as ancient legends say that if the baku is not satisfied after consuming the nightmare, he may also devour one’s hopes and dreams.