3girls :o age_difference ahoge arm_up armpits bangs barefoot beach black_hair blue_eyes blush brown_hair casual_one-piece_swimsuit child cloud crotch day feet female_child flat_chest floating_hair frilled_swimsuit frills glasses hair_between_eyes hands highres hitotsubashi_yurie innertube kamichu! kneeling leaning_forward leg_up light_smile looking_at_viewer looking_back lying megami_magazine motion_blur multicolored_clothes multicolored_swimsuit multiple_girls ocean official_art on_back on_ground one-piece_swimsuit orange_eyes outdoors parted_lips ponytail purple_eyes reclining saegusa_matsuri sandals scan scan_artifacts scrunchie shijou_mitsue short_hair sidelocks sitting sky smile soles spread_legs striped striped_one-piece_swimsuit swimsuit toes uon_taraku wariza water