1girl, absurdres, bikini, blonde_hair, blue_neckerchief, blue_sailor_collar, blue_sky, breasts, brown_eyes, cloud, commission, cowboy_shot, crop_top, day, highres, idolmaster, idolmaster_million_live!, long_hair, looking_at_viewer, medium_breasts, midriff, momose_rio, navel, neckerchief, outdoors, pixiv_commission, sailor_bikini, sailor_collar, sailor_swimsuit_(idolmaster), shuucream_(syuichi), side-tie_bikini_bottom, sky, solo, standing, swimsuit, wading, white_bikini