Chōji's low self-confidence belied his great strength; he became agitated to fight an opponent mainly if they insulted him or his friends. It was during these instances that he proved to very strong, enough to defeat the Sound Four member, Jirōbō. His father Chōza, Shikamaru, and Asuma Sarutobi all believe that Choji's greatest strength is his kindness and concern for his friends, which the latter states could someday make him stronger than anyone