After he was released in 1872, he studied in the United States in order to escape from questioning over his liquidation of the chief retainer, and after he returned to Japan, he joined Mitsubishi.
明治5年（1872年）に釈放後、家老粛清の追及を逃れるためアメリカ合衆国に留学し、帰国後は三菱に入社。