5girls, ahoge, barefoot, beach, bikini, black_eyes, black_hair, blush, breast_grab, breasts, brown_eyes, brown_hair, cleavage, closed_eyes, day, flat_chest, grabbing, groping, hair_bobbles, hair_ornament, innertube, kneeling, large_breasts, long_hair, medium_breasts, midriff, multiple_girls, open_mouth, outdoors, sand_castle, sand_sculpture, short_hair, side-tie_bikini, sitting, striped, striped_bikini, swimsuit, twintails, yuri