Tetsutetsu is a young man with chin-length, messy gray hair, which is rather peculiar in that it never seems to change shape, and black eyes that are tilted dramatically inwards, each lined with a very thick, jagged, tan-colored substance, which is presumably his eyelashes. Like Eijiro Kirishima, he has rows of sharp, pointed teeth. His very hotheaded and outspoken personality defines Tetsutetsu. He is confident, stubborn, and straightforward in his motivations and actions, very vocal!