However, judging from the fact that Todo changed his name to 'Yashichiro NANBU (sometimes he identified himself as Yahachiro),' he may have been hiding because he was worried about the bad influence, caused by his reputation in the Shinsengumi, on his comrades' activity.
ただ、藤堂は「南部弥七郎（弥八郎という場合もあったようだ）」と改名していることから、おそらくは新選組時代に負った風評が同志の活動に及ぼすであろう悪影響を懸念し息を潜めていたのかもしれない。