He celebrated his coming of age at Hieizan, and returned to Oshu (Northern Honshu, the region encompassing Mutsu and Dewa provinces) when Takauji was defeated in Kyoto and fled to Kyushu in 1336, but in 1337, he turned back to Saigoku (western part of Japan (esp. Kyushu, but ranging as far east as Kinki)) because Taga-jo castle was assaulted.
比叡山で元服を行い、1336年（建武3年）に尊氏が京都で敗れて九州落ちすると再び奥州へ戻るが、1337年（延元2年/建武4年）多賀城が襲撃されたため西国に戻る。