1girl, ass_visible_through_thighs, bad_pixiv_id, bike_shorts, black_shorts, blue_sports_bra, breasts, brown_eyes, brown_hair, glasses, grin, idolmaster, idolmaster_cinderella_girls, kitagawa_mahiro, kon5283, navel, red-framed_eyewear, short_hair, shorts, small_breasts, smile, solo, sports_bra, standing, stretching, thigh_gap, twisted_torso, yellow_background