There was very little financial support from the Aizu clan, so the Mibu Roshingumi, at SERIZAWA's instigation, robbed money from wealthy merchant houses (a common practice of the Tenguto), and from that point, HIRAMA who was close to SERIZAWA, took control of their finances.
会津藩からの資金供与は乏しく、壬生浪士組は芹沢が中心となって裕福な商家から押し借り（天狗党の常套手段）で資金を調達することになり、その点からも芹沢に近い平間が財務を握る必要があったのだろう。