Hajime is seemingly cynical due to how he behaves, but it would be better to describe him as a realist. He is quite skeptical and tends to worry more than the other students, but his worries are often very understandable. He is logical and smart, often annoyed by the idea of not being able to understand someone or something at all. He tends to be quite serious, but he does joke around occasionally and often goes along with his classmates' eccentric hobbies anyway, and sometimes smiles awkwardly and sheepishly while his friends engage in some of their usual weird behavior. He is sometimes annoyed by some of his classmates, and can be snarky towards them in his thoughts as well as blunt while speaking to them at times, though he's more frank than sarcastic or mean-spirited. Though sometimes a bit submissive (especially with bossy girls), he is not afraid to speak his mind. He can sometimes be short-tempered and snap at others, especially when he's tired or under pressure.