1girl beach bikini blonde_hair blue_sky breasts cloud commentary_request cowboy_shot day fang green_eyes halterneck highres idolmaster idolmaster_cinderella_girls jougasaki_rika lens_flare looking_at_viewer ocean one_eye_closed outdoors red_bikini shuka_(sake_udon) side-tie_bikini_bottom sky small_breasts solo string_bikini sun swimsuit two_side_up