While working in this way, he also assumed Jibushoyu (a Junior Assistant Minister of the Ministry of Civil Administration), vice minister of Kageyushicho (the office for checking records of out-going officials), Mikawa no Gon no suke (a provisional vice governor of Mikawa Province) additionally, and participated in compiling "Nihon Sandai Jitsuroku" (the sixth of the six classical Japanese history texts), "Engi-kyaku Code" (code in the Engi era), and " Engi-shiki" (the book for code and procedures on national rites and prayers in the Engi era).
この間、治部少輔・勘解由次官・三河権介などを兼任し、『日本三代実録』『延喜格』『延喜式』などの編修に参与した。