On January 4, 806, Otsugu and a coworker of Otsugu's, SUGANO no Mamichi who was also a Sangi were asked for their opinions by the Emperor Kanmu about problems of the politics in those days.
延暦24年（805年）12月7日（旧暦）、緒嗣と同僚の参議・菅野真道は桓武天皇より現在の政治の問題点について質問を受けた。