Emperor Monmu sent Yakio (夜気王) and other vassals to impose an imperial edict that granted shokosan (the sixth grade of shoko rank for vassals of the forty-eight grades of cap rank) for his achievements in the Jinshin War.
文武天皇は、夜気王らを遣わして詔を述べさせ、壬申の乱での功によって正広参の位を贈った。