As the army of the Southern Court led by the Imperial Prince Kagenaga and Takemitsu KIKUCHI disposed of the Shoni clan and the Otomo clan and tried to go up to the east, he was appointed in 1361 by bakufu (Japanese feudal government headed by a shogun) to Kyushu Tandai (the post of the chiefs of the shogunate in Kyushu) and dispatched to Kyushu.
懐良親王と菊池武光らの南朝軍が少弐氏や大友氏を打ち破り、東上しようとした為、幕府によって康安元年/正平(日本)16年（1361年）に九州探題に任命され、九州に派遣された。