Mamiya Kiichi was the captain of the Kendo Club at the university. He is a ferocious character, with a vengeant and bloodthirsty personality, and is described as looking like a "mad dog".
Kichii has black hair like his younger brother but his hair is longer.
Mamiya Kichii first started off as a bloodthirsty man. However, he does care about his younger brother Seiji and wants him to become the best fighter in Japan. He forced his younger brother to go back to the Kendo Club because of the promise he made to his mother. After his fight with Minoru, he decided to let his brother stay in the Second Karate Club.