In those days, Empress Saimei carried on many construction projects such as building stone mounds and a Takadono (a building placed on the high place) near the top of Mt. Tonomine and digging a waterway through the Nara Basin, but these constructions were received unfavorably by the people who were mobilized.
当時、斉明天皇は多武峰の山頂付近に石塁や高殿を築いたり、奈良盆地に運河を掘るなど、多くの土木事業を営んだが、動員される民衆には非常に不評であった。