Imperial Prince Osakabe, also known as Osakabe no Miko (Prince Osakabe), was assigned to Daijodaijin (Grand Minister) in January 703, Miushi's rank became second to that of Imperial Prince Osakabe.
大宝3年（703年）1月に刑部親王（忍壁皇子）が太政大臣になると、御主人の地位はそれに次ぐものとなった。