Amaterasu Omikami (the Sun Goddess) ordered Tsukuyomi to go take a look at a goddess called Ukemochi no kami in Ashihara no nakatsukuni (literally, "Central Land of Reed Plains", which refers to the human world).
天照大神はツクヨミに、葦原中国にいる保食神という神を見てくるよう命じた。