1girl, bike_shorts, blush, breasts, cloud, dark-skinned_female, dark_skin, gentsuki, looking_at_viewer, medium_breasts, midriff, navel, original, outdoors, parted_lips, red_sports_bra, shoes, short_hair, sky, smile, sneakers, solo, sports_bra, standing, standing_on_one_leg, sweat, track_kouhai_(gentsuki), underwear