Gunjou (kirihara idumi) manga

Gunjou (KIRIHARA Idumi) summary:

Michi Yomogihara, a petite girl with slender legs and a running pace that puts motorcycles to shame. After spending most of her life abroad, she returns to Japan to pursue her passion and her idol. Upon coming face to face with said idol, however, it becomes apparent that things won't go as smoothly as she had hoped.