3girls, ^_^, adjusting_eyewear, bikini, black_bikini, blue_sky, blush, breasts, chibi, cleavage, closed_eyes, cloud, collarbone, glint, hand_on_eyewear, hanetsuka, idolmaster, idolmaster_shiny_colors, looking_at_viewer, medium_breasts, mitsumine_yuika, multiple_girls, o3o, ocean, outdoors, outstretched_arm, purple_eyes, purple_hair, round_eyewear, see-through, see-through_sleeves, sky, solo_focus, swimsuit, tanaka_mamimi, tinted_eyewear, water, white_bikini, yukoku_kiriko