In 1362, after losing his position in a power struggle against the Shiba clan, Doyo SASAKI and others, Kiyouji joined the Southern Court and went to Awa.
1362年（正平17年/貞治元年）に清氏は斯波氏や佐々木道誉らとの政争で失脚し、南朝に属して阿波へ渡った。