1girl, bare_shoulders, beach, belt, bikini, bikini_under_clothes, blonde_hair, blue_eyes, blue_shorts, blue_sky, blush, bracelet, breasts, cleavage, cloud, collarbone, day, denim, denim_shorts, front-tie_bikini_top, front-tie_top, hair_ornament, horizon, idolmaster, idolmaster_cinderella_girls, jewelry, long_hair, looking_at_viewer, masaki_(masakinariya), medium_breasts, midriff, multicolored_bikini, multicolored_clothes, navel, necklace, no_shirt, ocean, ohtsuki_yui, open_belt, open_clothes, open_fly, open_mouth, open_shorts, outdoors, ponytail, rainbow_bikini, sand, shorts, side-tie_bikini_bottom, sky, smile, solo, standing, stomach, striped, striped_bikini, swimsuit, unbuttoned, unzipped, water, wavy_hair