1girl, aqua_one-piece_swimsuit, breasts, brown_eyes, competition_swimsuit, covered_navel, feet_out_of_frame, hand_on_own_hip, highleg, highleg_swimsuit, idolmaster, idolmaster_cinderella_girls, long_hair, looking_at_viewer, one-piece_swimsuit, orange_hair, photo_background, ponytail, pool, poolside, sidelocks, small_breasts, solo, swimsuit, takafumi, yuuki_haru