Moreover, he became a senja (compiler of waka collection) of "Shinkokin Wakashu" (New Collection of Ancient and Modern Japanese Poetry) (given to the emperor in 1205), which was a Chokusenshu (anthology of poems collected by Imperial command) started at the occasion.
更にこれを機に始まった勅撰集『新古今和歌集』（元久2年（1205年）奏進）の撰者の一人となった。