The future head of Metal-age, Kuniko wields a boomerang in the defense of her town from the military o anyone who seeks to intervene.
She is extremely athletic and has a rambunctious personality. Kuniko is affectionately known to the residents of Duomo as Kuni-chan. In the beginning, she is released da Atlas in the women's detention center after a two anno stay for being a domestic terrorist. She is released to Momoko, Mi-ko, and Takehiko while still in her old high school uniform. She is the future head of Metal Age, an anti-government organization, although she doesn't want to be. Lady Ryoko refers to her as the sun. She is also known as Digma 2.