1girl absurdres aqua_shirt arms_behind_back arona_(blue_archive) bare_legs blue_archive blue_hair bubble closed_umbrella dutch_angle from_behind from_below hairband halo highres holding holding_umbrella ka_keo long_sleeves miniskirt pleated_skirt sailor_collar school_uniform serafuku shirt shoes short_hair skirt sneakers solo umbrella whale white_footwear white_sailor_collar white_skirt