The Yamato race's power also increased in Ezochi (inhabited area of Ainu), turning the southern Oshima Peninsula into part of the inland, and the whole area of Hokkaido came under the power of the Yamato race (refer to Ainu tribe and others).
蝦夷地（現在の北海道）での勢力も増していき、渡島半島南部は内地化し、北海道全域が大和民族の勢力下に置かれるようになった（アイヌ等を参照）。