Suguru is a tall, slim, and muscular man with long black hair partially tied up in a man bun while the rest drapes down his back. He has thin black eyes. His earlobes are large and gauged. Following Rika’s death, Suguru suffered from a depression that left him hating non-sorcerers. Suguru is charismatic and eloquent, though he also has an overprotective and nurturing personality. While Suguru is intelligent and methodical, he can be immensely manipulative and is not averse to violence.