From studies that had conducted so far, it is confirmed that he served as betto for five places, Office of the Sutra copying office of Todai-ji Temple Construction, Todo sho, 造物所, Office of Ishiyama-dera Temple Construction, and Office of Kon-do Hall (main hall of a Buddhist temple) Construction in Hokke-ji Temple.
いままでの研究で、造東大寺司写経所・東塔所・造物所・造石山寺所・法華寺造金堂所の5つの別当を勤めていたことが判明している。