Aki Kunitora was lord of the Aki District of Tosa, and was born in 1530 to Aki Motoyasu. He was known as one of the Seven Tosa Heroes.

He and Chousokabe Motochika fought sporadically over territory. In spring of 1569, he instigated a war with Motochika that he ultimately lost, and he committed suicide at his family temple, Joutei Temple. Many of his chief vassals followed him in death.