Ama-no-Uzume
Amaterasu's brother, the storm god Susano'o (須佐之男命), had vandalised her sacred buildings and killed her maidens because she refused to trust him. Amaterasu became so scared of his wrath that she went to hide into a cave, Ame-no-Iwato (天の岩戸). The world, without the light of the sun, became dark. The Oni (devils of Japanese mythology) came out to the dark world, and the gods could not make Amaterasu come out of the cave.