Amaterasu [天照], Amaterasu-ōmikami or Ōhirume-no-muchi-no-kami 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.
In Japanese mythology, Amaterasu, the goddess of the sun, is the sister of Susanoo, the god of storms and the sea, and of Tsukuyomi, the god of the moon. It was written that Amaterasu had painted the landscape with her siblings to create ancient Japan. She became the ruler of the sun and the heavens along with her brother, Tsukuyomi, the god of the moon and ruler of the night. Originally, Amaterasu shared the sky with Tsukuyomi, her husband and brother until, out of disgust, he killed the goddess of food, Uke Mochi. This killing upset Amaterasu, causing her to label Tsukuyomi an evil god and to split away from him; separating night from day.
There is also a long-standing rivalry between Amaterasu and her other brother, Susanoo. When he was to leave Heaven by orders of Izanagi, he went to bid his sister goodbye. Amaterasu was suspicious, but when Susanoo proposed a challenge to prove his sincerity, she accepted. Each of them took an object of the other’s and from it birthed gods and goddesses. Amaterasu birthed three women from Susanoo’s sword while he birthed five men from her necklace. Claiming the gods were hers because they were born of her necklace, she decided that she had won the challenge. The two were content for a time, but her brother became restless and went on a rampage, destroying Amaterasu’s rice fields, hurling a flayed pony at her loom, and killing one of her attendants in a fit of rage. Amaterasu, who was in fury and grief, hid inside the Ama-no-Iwato (“heavenly rock cave”), thus effectively hiding the sun for a long period of time. The world, without the illumination of the sun, became dark. The gods could not lure Amaterasu out of her hiding place until the goddess of dawn, Ame-no-Uzume, was able to trick her into reappearance.