In the coup of August 18, upon the exile of the seven nobles from Kyoto (Shichikyo-ochi), he went westwards with seven nobles and returned to the Tsuwano Domain, where he won the support of Lord Kamei and played an important role in the reforms of the domain duties.
八月十八日の政変に際しては、七卿落ちと共に西下し帰藩、藩主亀井に認められ、藩政刷新に尽くすところがあった。