The Inui clan (the Itagaki clan) were hereditary feudal retainers of the Tosa Domain during the Edo period, with the social standing of Umamawariyaku (body guard), a Joshi status (superior warrior).
乾氏（板垣氏）江戸時代、代々土佐藩士で、家格は馬廻役（上士）。