Rule 34 Dev - 1girl :o absurdres aqua_bikini bikini blue_ribbon blush breasts cleavage collarbone gakuen_idolmaster grey_hair hair_ribbon half_up_braid highres idolmaster katsuragi_lilja large_breasts looking_at_viewer navel outdoors ribbon ribbon_braid short_hair side-tie_bikini_bottom solo stomach string_bikini swimsuit yuzuyu_(hyui)|24940121544