Yoshifusa was dismissed in the following year and dispatched to Mutsu province as the supreme commander of Oshu where he stayed until 1345, during which overwhelmed the Southern Court (Japan) including the Date clan, Akinobu KITABATAKE, etc. and successfully organized the Ou region.
翌年解任され、奥州総大将として陸奥国へ派遣、1345年に至るまで在国し伊達氏、北畠顕信らの南朝(日本)方を圧倒させ、奥羽の組織化に成功を収める。