Kazemaru is shown as a competitive character yet a nice and friendly personality, as he likes to play against strong players. He is also shown to have some confidence issues under high pressure, and is afraid of not being able to keep up with the rest of his teammates. He sometimes has conflicted feelings within himself. He's a good leader, which is most prominently witnessed during season 3 when he takes over as captain while Endou, Kidou, Sakuma, and Fudou are helping Orpheus Italia. He seems to be one of the most expressive characters in the anime. He is shown to be very kind and caring to his teammates, but can be slow thinking. He is close to his teammates, shown when they won against Little Gigant, he had jumped up and hugged Endou.
In the manga, he seemed to care for his team, and he's the one who taught Kabeyama about defensive tactics. Although he was injured in the match against Teikoku Gakuen, he kept cheering for the rest of his teammates.