In September, 764, Nakamaro gained the position of Totoku shikinai sangen omi tanba harima to koku hyojishi (Governor general; four provinces close to the capital: Yamato, Yamashiro, Setsu, Kawachi; three major barrier stations; Omi Province; Tanba Province; Harima Province; and other provinces; military chief), and held the military power for a planned rebellion.
同年9月、仲麻呂は都督四畿内三関近江丹波播磨等国兵事使になり軍権を掌握して反乱を計画。