As a child growing up during the war-torn era, Hansei trained hard to achieve the skills of his father and his two older brothers, as well as being an inspiration to his younger brothers. Even before the age of ten, Hansei already protected the Uchiha clan's temples as well the clan's hideout besides having prematurely awakened the Sharingan. Hansei used to constantly compete with Madara and Izuna in their training. Although Hansei skills were noticeably higher than those of Izuna, he seemed below than Madara, what bothered him, though Hansei never showed such feelings openly.