Even after pledging allegiance to the Japanese court, the Hayato continued to resist its rule. After the establishment of Ōsumi Province in 713, the Ōsumi Hayato fought back in 720 with the Hayato Rebellion, but were defeated in 721 by an army led by Ōtomo no Tabito. The Handen-Shūju system was implemented in their lands in 800. The population of Yamato immigrants in Kagoshima prefecture in the early 8th century has been estimated at around 9,000 people and one-seventh of the total population. By this estimate, the Hayato population of the time can be calculated as consisting of around 54,000 people (not including Hayato emigrants to Honshū).