1girl, black_footwear, blush, boots, breasts, brown_eyes, brown_hair, brown_thighhighs, fundoshi_day, futami_mami, grin, hair_ribbon, holding, idolmaster, idolmaster_(classic), japanese_clothes, long_hair, looking_back, medium_breasts, ribbon, sarashi, side_ponytail, simple_background, smile, solo, sweat, tasuki, thighhighs, tomamatto, underwear, white_background