In 901, he was appointed to the Junii (Junior Second Rank), but was later falsely accused of plotting to have Imperial Prince Tokiyo ascend the throne and take away political power from Emperor Daigo, and after he was found guilty, he was demoted to Dazai Gon no sochi (Provisional Governor-General of the Dazaifu offices).
延喜元年（901年）、従二位に叙せられたが、斉世親王を皇位に就け醍醐天皇から簒奪を謀ったと誣告され、罪を得て大宰権帥（だざいごんのそち）に左遷される。