Kenma Kozume

Kenma usually has a quiet, composed and analytical personality. He rarely loses his temper, and usually does not get too excited or fired-up about most things, with a few exceptions being video games, Hinata, Lev-in The Arrival of Haiba Lev (OVA), and Yamamoto during their first year in high school.

Because of his reserved nature, Kenma does not often voice his opinions since he is afraid of what others might think of him and does not like standing out or being noticed in any way. His shy tendencies also prevent him from being very approachable and because of this, he has a difficult time making friends, with Kuroo being stated to have been the only friend he's made since elementary school. He also is not fond of the authority that comes with being an upperclassman and doesn't expect his junior's to automatically respect him, often reminding Lev that he does not need to be so formal with him.

Kenma rarely tends to show many emotions which usually causes him to look like he is giving a cold impression to others. However, it is shown that he does care about his friends and notices small upsets in their behavior. An example is when they were younger, Kuroo's team had badly lost a volleyball match and was feeling down. Kenma noticed this feeling and, despite not caring for volleyball, asked if Kuroo would like to practice and "level up" to which he agreed eagerly. Another can be seen later in the manga when he admits that he tries hard to win for his friends.

Despite his modest personality, Kenma is quite skilled in volleyball with his extraordinary game sense, technique, and strong strategic abilities, which make up for his lack of power, speed, and stamina. Although he seems somewhat apathetic about it, Kenma is the type of person to only do things he enjoys and would therefore quit volleyball if he didn't enjoy it somewhat, which according to him was the aspect of improving his skills in the same sense as a video game. However, despite having a tough time admitting his feelings, the real motivation behind his continuation of volleyball is his friends. Kenma is also shown to be quite competitive.

After the time skip, Kenma can be described as having a good head on his shoulders. Even after being a successful stock trader, pro-gamer, Youtuber & the CEO of his own company, he doesn't spend his money lavishly except for video games and sponsoring Hinata during his time in Brazil.