Perpetually sullen, arrogant, and undeniably short-tempered, Kageyama originally came off as a typical overbearing perfectionist, caring only about winning and completely disregarding the opinions and well-being of his teammates. Since joining Karasuno, he has grown to be more respectful of his upperclassmen, as well as more accepting of people whose abilities and/or views differ from his own, and has come to once again understand the importance of teamwork and mutual trust in the sport