1girl, aged_up, arm_up, armpits, beach, bikini, blush, breasts, cleavage, collarbone, greyscale, groin, idolmaster, idolmaster_cinderella_girls, large_breasts, light_smile, looking_at_viewer, monochrome, navel, outdoors, parted_bangs, print_bikini, ryuzaki_kaoru, shirokuma_(nankyoku), short_hair, solo, swimsuit, thick_eyebrows