The sun goddess Amaterasu is the most important of Japan’s deities. The Japanese believe that, Amaterasu sent her grandson Nnigi no Mikoto down to the Earth. His great grandson is believed to be the Emperor Jimmu Tenno, the first emperor of Japan. The emperors of Japan are known as tenno. They are direct descendants of Jimmu. Japanese emperors are god-emperors. To this day, the Japanese emperor performs many ritual duties and rites.
Shinto or the way of the Gods is the Japanese natural religion. The most important Shinto shrine is the shrine to the sun goddess at Ise. Kojiki and Nihongi are the 7th century books that throw light on Japanese gods.