Megumi is a very outwardly stoic, aloof, and calculating individual. He usually has a neutral facial expression that he rarely changes and appears to take every situation seriously. This contrasts with Yuji, Nobara, and Satoru's outgoing and goofy personalities, which often annoy Megumi.

Megumi is analytical, logical, and objective when dealing with problems and situations. He is also introspective and seems to enjoy spending time alone, suggesting his introverted nature. 