Abstract
This paper discusses how the Yaku-daiku performed ceremonies. The Yaku-daiku were carpenters working at Kamowakeikazuchi Shrine. They were divided into two groups: one with the prefix “sei”, and the other with the prefix “gon”. These prefixes corresponded to Seiden and Gonden, shrines at Kamowakeikazuchi Shrine. Until the early Edo period, carpenters prefixed with “sei” performed a ceremony at Seiden, while carpenters prefixed with “gon” performed the same ceremony at Gonden. Moreover, especially in the late Edo period, during one ceremony, carpenters categorized as “sei” performed ceremonial procedures at first, and then carpenters categorized as “gon” performed the same ceremonial procedures.