In the same year, he participated in the impeachment for Takemichi KOGA who was a member of the party advocating Kobu-Gattai (the union of the Imperial Court and the shogunate); in March of the following year, he and Motoosa MIBU proposed the radical reform in the government and the execution of Joi (expulsion of foreigners), then he was appointed to Kokuji-yoryudo (general official of the government) and attended Emperor Komei's visit to Iwashimizu Hachiman-gu Shrine to pray for the success of Joi.
同年、公武合体派の久我建通の弾劾に加担、翌年2月、壬生基修とともに庶政刷新と攘夷貫徹を求める建言を提出して国事寄人に任じられ、孝明天皇の攘夷祈願の為の石清水八幡宮行幸に随従した。