satou atsuki, hiiragi kagami, hiiragi tsukasa, izumi konata, takara miyuki, lucky star, 00s, 4girls, :3, ahoge, alternate hairstyle, barefoot, beach, bikini, blue eyes, blue hair, blush, braid, breasts, cleavage, closed eyes, double bun, feet, glasses, green eyes, long hair, medium breasts, mole, mole under eye, multiple girls, name tag, one-piece swimsuit, open mouth, pink hair, ponytail, purple hair, school swimsuit, short hair, siblings, sisters, small breasts, swimsuit, twins