GT-giRL is a girls car racing story that depicts girls in the womens car racing club, set in a world where driving skills learning from the first year of high school was introduced and it became possible to obtain a car drivers license at the age of 16. .. The story begins when Yo Aoi Sato, who works hard at the womens auto racing club of private Mihama Girls High School, which has only one member, becomes friends with Yuri Yamamoto in the same class.