hiiragi kagami, hiiragi tsukasa, izumi konata, takara miyuki, lucky star, absurdres, highres, 00s, 4girls, ahoge, anklet, back, ball, barefoot, beach, beach chair, beachball, bikini, blue hair, book, chair, dappled sunlight, day, feet, flower, glasses, jewelry, long hair, lounge chair, mole, mole under eye, multiple girls, one-piece swimsuit, outdoors, pink hair, purple hair, school swimsuit, shade, short hair, siblings, sisters, sitting, standing, sunglasses, sunlight, swimsuit, tree shade, twins, twintails