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.
Rokurokubi are demons found in Japanese folklore. They look like normal human beings by day, but at night they gain the ability to stretch their necks to great lengths. They can also change their faces to those of terrifying oni to better scare mortals. In their daytime human forms, rokurokubi often live undetected and may even take mortal spouses. Many rokurokubi become so accustomed to such a life that they take great pains to keep their demonic forms secret.
Amaterasu (天照?) is a part of the Japanese myth cycle and also a major deity of the Shinto religion. She is the goddess of the sun, but also of the universe. The name Amaterasu derived from Amateru meaning "shining in heaven." The meaning of her whole name, Amaterasu-ōmikami, is "the great august kami (god) who shines in the heaven". The Emperor of Japan is said to be a direct descendant of Amaterasu.