Harumichi has short grey hair, parted to the side, and grey eyes. He has visible signs of age, with some light grey streaks in his hair as well as wrinkles on his face. Harumichi is a stubborn and severe man with a deep love for classical music. He is quick to anger when Toya misbehaves, such as when he arrives home late. Otherwise, he's quite unemotional, always striving for perfection no matter the consequences, and never trying to connect with Toya on an emotional level.