By the time Amenooshihomimi was ready to descend to Ashihara no nakatsukuni, where peace and order had been established, Ninigi—the grandchild of Amaterasu Omikami—was born and ordered to go down there by Amaterasu Omikami.
葦原中国が平定され、いよいよアメノオシホミミが降臨することになったが、その間にニニギが生まれたので、孫に当たるニニギを降臨させた。