Second eldest son of Lord Amekatsu Wataku and Lady Sai. Because of their genetics, Lord Katsuhiro got a unique genetics to cause him to have pink hair. But really it is a Co-dominant inheritance of his mother's red and his father's white hair. However the fact, he is chosen by his uncle Lord Yoshikatsu Wataku to inherit the Wataku dojo. Lord Katsuhiro is quite witty and smart. He is however can be egotistical and pompous. Which is a hurdle of his growth as a future grandmaster.