Mika Jiro is the wife of Kyotoku Jiro and the mother of Kyoka Jiro. Mika is a slender woman who wears glasses with black frames. Her is is straight, short, and dark purple in color, with bangs that fall to the right side of her face. In every instance where she has made an appearance thus far, she is shown wearing a collared shell top, a pencil skirt, and tights. Like her daughter, Mika has plug-like earlobes. There weren't many scenes about Mika, we can only understand a part of her personality from Jiro's memories: she is a supportive and generous woman, who leaves her daughter free to choose if she wants to be a hero or a musician.