1girl, bare_shoulders, between_legs, bikini, black_hair, blue_neckerchief, blue_ribbon, blue_sailor_collar, blush, breasts, brown_eyes, cleavage, collarbone, hair_ribbon, hand_between_legs, idolmaster, idolmaster_cinderella_girls, idolmaster_cinderella_girls_starlight_stage, indoors, kneeling, large_breasts, long_hair, looking_at_viewer, low_twintails, milkmochi, navel, neckerchief, ohnuma_kurumi, open_mouth, pool, poolside, rei_no_pool, ribbon, sailor_bikini, sailor_collar, sailor_swimsuit_(idolmaster), shy, solo, sunlight, swimsuit, tears, twintails, twitter_username, water, white_bikini