He seems cynical at first glance, realist, quite skeptical, tends to worry more than others, logical, keen, often annoyed by the idea of not being able to understand someone or something at all, tends to be quite serious, does joke around and often goes along with his 'classmates' eccentric hobbies, sometimes smiles awkwardly and sheepishly, can be sometimes snarky, a bit submissive (Especially to bossy girls), not afraid to speak his mind, can be rude if annoyed enough, and short-tempered.