According to tradition, both Toyosukiirihime and Yamatohime-no-mikoto are considered to be the origins of the role of saiō and Ise Shrine.[1] In the Kojiki, Toyosukiirihime is considered the first maiden of the Ise Shrine, with Yamatohime-no-mikoto succeeding her.[2]
The Nihon Shoki however states that originally, Toyosukiirihime was entrusted with finding a place to worship Amaterasu.[3] But unlike the Kojiki, Toyosukiirihime does not end up finishing the task, as Yamatohime-no-mikoto takes over and goes travelling across Japan.[1][4]
The Nihon Shoki's account is the accepted version, and is the version of events that Ise Shrine promotes today as opposed to the Kojiki.[4]