In the Edo period, as mediators between feudal lords and people, Toiya served as public administrators in Shukubamachi (inn town), and at the same time, were chiefs of Machi yakunin (officials in a post station) who were in charge of Toiyaba (administration office).
江戸時代、領主と住人の仲介者として宿場町の自治行政を行うと共に問屋場を管理した町役人（宿場役人）の長。