Due to his young age, Kiyomaru was very immature, shown as he spoke rudely to one of his superiors and recklessly ordered one ninja to kill himself to prove his loyalty. Kiyomaru was also very arrogant and disapproved of being looked down on by others just because he is an unranked asaemon, as he declared that he was far superior to everyone that came along on the mission. Aside from his childhood behavior, Kiyomaru was very loyal to Shugen and would do anything he commanded. hes 12