Kojiki
The Kamitsumaki, also known as the , includes the preface of the Kojiki. It is about the first gods in the mythology of Japan, Izanagi and Izanami. These are the gods who created the world. This volume also tells of the births of various gods of the kamiyo period, or Age of the Gods. The Kamitsumaki also describes the legends about the creation of Japan. It describes how Ninigi-no-Mikoto, grandson of Amaterasu, came down from heaven to Kyūshū and became the ancestor of the Japanese royal line. According to this legend, he is considered the great-grandfather of Emperor Jimmu.