Hajime has short, spikyish brown hair with an ahoge that moves according to his emotions. He wears a white shirt with the emblem of his previous high school embroidered on the hem, along with a green tie which bears the same emblem. He also wears dark pants and red-and-white sneakers. Hajime seems cynical at first glance, but it would be more accurate to describe him as a realist. He is quite skeptical and tends to worry more than the others, but his worries are reasonable. He is Annoyed easily.