Under these circumstances, Sukunamaro conspired with SAEKI no Imaenishi, ISONOKAMI no Yakatsugu and OTOMO no Yakamochi to plot the assassination of FUJIWARA no Nakamaro; however, the plan was leaked to Nakamaro.
そのような状況の中、宿奈麻呂は佐伯今毛人、石上宅嗣、大伴家持らと結託し仲麻呂暗殺計画を企図するも計画は仲麻呂側に漏洩。